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Clinical Chemistry Numericals Practice Test

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Which ALP isoenzyme is most resistant to heating at 65°C for 30 minutes?
One consequence of squeezing the puncture site during collection is which of the following?
Which chemical inhibitor inhibits Bone and Liver isoenzymes?
Which of the following is NOT listed as a use of fluorometers in the source material?
Which analyte commonly requires anaerobic transport to preserve its measured value?
Which odor is characteristic of cyanide exposure?
Which statement correctly describes lactic acidosis types?
In the sodium level table, which condition is associated with high sodium?
In assessing CRP for CHD and stroke risk, how should samples be measured?
Which is a continuum light source?
What is the most common treatment for Conn's syndrome?
Which ion activates creatine kinase as an enzyme cofactor?
In salting-out albumin procedure, high salt precipitates which fraction?
Which statement is true about acid strength and pKa in relation to strong and weak acids?
Normal BUN-to-creatinine ratio but with elevated BUN and creatinine suggests which state?
Which lipid parameter is commonly measured in a basal fasting lipid panel?
Which tissue responds to oxytocin to promote lactation?
Which term describes the relationship of one quantity to another by division?
Which units are used for reporting creatinine in blood and in urine?
What is the titrant used in the method?
Ideal storage temperature for enzymes is typically:
In Tyrosinemia Type II, deficiency of which enzyme?
In a pH electrode, what is the typical material used for the measuring electrode's covering membrane?
Which two gonadotropins are most commonly assessed together as part of fertility evaluation?
In electrophoresis isoenzyme numbering, which isoenzyme is the fastest migrating?
Elevation of alkaline phosphatase in obstructive bile duct obstruction is typically how many times ULN?
In the 'Countercurrent' concept for chloride, which ion is listed?
What is the conversion factor between International Units (IU) and nano katal (nkat)?
Which organ is the first affected during hypoglycemia?
What is the purpose of adding LDH to the Walker/Karmen reagents?
Which BAC range corresponds to the euphoria stage?
Calcium and lithium ions in ion-selective electrodes use which type of membrane?
In hyperlipoproteinemia with high VLDL, which plasma appearance is typical?
Which female hormone is present in males?
Which drug is nephrotoxic and ototoxic?
Which apolipoprotein serves as a surrogate marker for HDL?
Which method is enzymatic (GLDH) for ammonia determination?
Pipets by Design differentiate contain vs deliver. Which term corresponds to deliver?
Verapamil belongs to which class of antiarrhythmic drugs?
Which substrate is associated with the King-Armstrong method for alkaline phosphatase measurement?
Kasha disease is a deficiency of which trace element?
Delta checks in laboratory data are used to detect discrepancies between current and prior results in which two error categories?
Measured osmolality minus calculated osmolality is called what?
Which term is one of the 5S principles in Lean manufacturing?
What percentage of serum calcium is protein-bound?
Which enzyme category is known for introducing or removing double bonds (creating double bonds)?
In the Walker/Karmen method for AST determination, which substrate is used by the enzyme (MDH)?
Which condition shows TSH normal, FT4 normal, TT3/TT4 low, and T3 uptake high due to low thyroid-binding globulin?
Which two vessels supply the liver?
Which electrolytes are designated for myocardial rhythm and neuromuscular excitability?
Which bands are included in the general APR classification?
Which apolipoprotein is predominantly distributed in HDL, chylomicrons, and acts as a LCAT activator?
Which stage comes after euphoria in the ethanol impairment sequence?
Which of the following is an example of a precipitating media used in HDL-C methods?
Bisalbuminemia can lead to which clinical implication?
Secondary hypergonadism is most commonly due to what?
The measuring electrode covering membrane for a pCO2 electrode is typically which material?
In hereditary hemochromatosis, which pattern is expected on an iron panel?
Euthyroid Sick Syndrome is also known as what?
Total immersion calibration applies to which equipment?
During the follicular phase of the menstrual cycle, which sequence occurs?
Which enzyme is required to break down the muscle relaxants succinylcholine and mivacurium?
Which HbA1c method is described as the preferred method for measurement?
In assay terminology, what describes the Endpoint measurement?
Isopropanol can be metabolized to which compound?
Which dye is used to stain lipoproteins?
What is the normal anion gap range without including potassium?
What creatinine value indicates completeness of a 24-hour urine collection?
Thyrotoxicosis is associated with exposure to which trace element?
Gradual loss of albumin is most associated with which condition?
What does PAGE stand for in electrophoresis terminology?
Which of the following is an essential amino acid?
To convert percent w/v to molarity for a substance with molecular weight MW, which formula gives M?
For UV and visible light measurements, which material is commonly used for sample cells?
Which bilirubin form has higher CNS affinity, increasing the risk of kernicterus?
What is the DPMO (defects per million opportunities) for Six Sigma?
Which LD measurement method is faster?
Which Fredrickson Type represents Primary Triglyceridemia or Familial Endogenous Triglyceridemia (VLDL) with high TAG?
Which of the following is NOT a method of bilirubin determination?
GGT is often elevated more than tenfold in which condition?
Which Fredrickson Type corresponds to familial hypercholesterolemia due to LDL receptor defect (high LDL and total cholesterol)?
Which liver function is affected last as hepatitis progresses?
In the condensation method, what color indicates formation of Schiff's base with glucose?
What is the reference range for globulin in serum?
In the D/L designation, the D form corresponds to the OH group on the penultimate carbon pointing to the:
In ABG analysis, a bicarbonate/carbonic acid ratio of less than 20:1 indicates:
Which is an indication for arterial puncture?
Which metal is associated with destruction of type 1 alveolar epithelial cells in the lungs and increased resistance to certain bacterial infections?
Which component is added by a Comprehensive Panel that is not part of the Basic Metabolic Panel?
Which pattern on electrophoresis indicates an acute inflammation/ Immediate response pattern?
What are two common methods for measuring enzyme activity?
In progressive liver disease, which hepatic function tends to decline last?
In the CK-coupled enzymatic method, which cofactor is used in the final reaction and measured by UV spectrophotometry?
Molarity is defined as
Which diffusion-based ammonia measurement method uses a membrane containing nonactin/monactin?
Gestational diabetes insipidus is caused by increased activity of which enzyme?
Which metabolite is the end product of dopamine metabolism?
A prediabetes risk factor includes a body mass index of 25 kg/m2 or higher.
Which Fredrickson Type corresponds to Mixed Hyperlipidemia (CM and VLDL)?
Which hormones are commonly tested in infertility workup?
Lucey-Driscoll Syndrome is due to which mechanism?
Which two markers are used to diagnose insulinoma?
What is the reference method for lipoprotein analysis?
LD6 (Alcohol dehydrogenase) is associated with which condition?
The GLDH-coupled method for ammonia determination uses which cofactor with glutamate?
Which apolipoprotein’s function includes acting as an LPL cofactor?
Marker for bone formation
A protein composed of more than one polypeptide chain held together by non-covalent interactions has which level of structure?
Cushing's syndrome is also known as hyperadrenalism because it affects which adrenal zones?
Which analyte is typically decreased in a hemolyzed sample?
Which sequence correctly expands the PDCA cycle?
Which hormone from the anterior pituitary stimulates milk production?
For secondary adrenal insufficiency, which stimulation test is used as a screening test?
Which pair of diseases is associated with alpha-1 antitrypsin deficiency?
What total cholesterol value is considered Desirable according to reference ranges?
Rochelle's salt is another name for which compound?
What is the critical range for calcium?
Polyclonal gammopathy with large elevation in gamma and beta-gamma bridging due to IgA is most characteristic of which condition?
Which test is used mainly for monitoring long-term glycemic control?
What is the NCEP goal for HDL cholesterol?
RAUI measures thyroidal uptake of iodine after an oral dose of which isotope?
Which of the following is an action of Angiotensin II?
The De Ritis ratio represents the relative activities of which two liver enzymes?
Which statement accurately describes the Tanzer-Gilvarg CK determination method?
How is the Therapeutic Index calculated?
Growth hormone (GH) has which metabolic effects?
Which of the following is NOT among the three most osmotically active particles in serum?
Which marker is used to differentiate benign prostatic hyperplasia (BPH) from prostatic carcinoma (PC)?
Which condition is a common cause of persistent hypoglycemia?
High-resolution protein electrophoresis separates proteins into how many bands?
C-peptide levels are high in which condition?
The endpoint of the titration corresponds to the formation of which fatty acid?
Which statement describes the direct method for osmometry?
Two types of hypoglycemia and hours?
Which photodetector is described as the most common and most sensitive for low light levels?
What is the reference range for TSH?
Ammonia is reported in which unit, distinguishing it from other NPN measurements?
Which method is colorimetric for potassium measurement?
Enzymes with the same catalytic activity but different structures are called what?
Which of the following is an example of a proliferation signal inhibitor?
For impedance method of aspirin analysis, which anticoagulant is recommended?
What is the reference range for fructosamine in umol/L?
Base ideal body weight used in Cockcroft-Gault for male and female before height adjustments is?
Which term indicates the concentration change resulting from dilution with solvent?
Which lipoprotein has the lowest cholesterol content?
Which substrate is characteristic for alkaline phosphatase (ALP) in luminescent assays?
ApoB48 main distribution and function?
Which term describes the process of verifying an initial result?
A spike of alpha-2 macroglobulin (A2) is most characteristic of which condition?
Which condition corresponds to Cushing's syndrome due to autonomous adrenal cortisol production?
Which term describes 'Any test on any sample at any sequence' in automation?
Neonatal Hyperbilirubinemia is due to which condition?
For the sample type used in evaluating hemolysis effects, which is preferred?
Which Fredrickson type is most common?
What fasting period is recommended before triglyceride measurement?
What percentage of cholesterol is endogenous (liver) according to the material?
Which pipet category does not require calibration?
The T-test formula described uses the difference between means as its numerator. Which expression represents this?
Which hormone is increased in primary hypothyroidism and decreased in primary hyperthyroidism?
Conjugated proteins are composed of an apoprotein and what non-protein component?
Which rpm falls within the cytocentrifuge speed range of 200-1000 rpm?
Which of the following lists the two methods of lactate determination described?
What is the silicate concentration for Type 2 reagent water?
Which option is NOT one of the three basic automation approaches?
If 10% contamination with 5% dextrose occurs, the glucose reading can increase by how many mg/dL?
What is the normal reference range for serum albumin?
Secondary bile acids include which?
In the provided notes, Six Sigma is applied to achieve what?
If K2EDTA is collected before serum or a light-blue tube, which tests are erroneous?
Which component is part of the surface of lipoproteins?
What is the first step in cerebrospinal fluid (CSF) analysis?
Levels of standards are described as which set?
What are the reference ranges for total CK for men and women respectively?
Which condition is a known stimulant of growth hormone secretion?
Which process cycle is used in Six Sigma methodology?
Which tumor is associated with increased VMA and HVA due to dopamine involvement?
What is the most common cause of secondary hyperaldosteronism?
Which statement correctly describes reflectance photometry?
Which of the following is a substrate for horseradish peroxidase (HRP) in luminescent assays?
Which distribution accurately describes magnesium in plasma?
Which factor can cause a false positive blood bhCG result?
With a 1°C rise, pCO2 changes by which percent?
In spectrophotometers, which dispersive element provides linear wavelength dispersion?
Coagulation QC is performed with how many levels and how often?
Which marker best reflects hepatic synthetic function?
Ion selective electrodes have largely replaced which instrument?
Which equation correctly estimates TIBC in ug/dL from transferrin measured in mg/dL?
CK-MV is less than 6% and is associated with which CK isoenzyme?
Which lipoprotein density is less than 0.93?
Renal tubular acidosis typically presents with which acid-base disturbance and chloride status?
DPMO is most commonly associated with which quality framework?
Which of the following is a planar chromatography method?
Which statement correctly describes Arrhenius acid-base theory?
The MDRD equation for estimating GFR uses which variables?
What is the formula for percent transferrin saturation?
A Poor SDI (Sigma Deviation Index) is indicated when SDI value exceeds what threshold?
What is the preferred sitting time for cholesterol testing?
A photodetector converts energy from which form to electrical energy?
Arsenic has high affinity for which tissue, used for long-term exposure assessment?
Euthyroid with high TBG occurs in which situations?
Which statement is true about HbA1c testing methods based on the provided notes?
What is the difference called between calculated osmolality and measured osmolality?
Which apolipoprotein acts as an inhibitor of lipoprotein lipase (LPL)?
Derived formula of molarity is equal to
In flame photometry, which statement is true?
Which statement about calcium distribution is true?
For artifactual or pseudohyperkalemia, which factor is a common laboratory cause?
A perfect Gaussian (normal) distribution occurs when which measures of central tendency are equal?
Which plastic is autoclavable primarily for chemical resistance?
What is the prohormone of thyroglobulin?
Hypotension in Addison's disease is primarily due to deficiency of which adrenal hormone?
Abetalipoproteinemia is caused by a mutation in which gene and results in absence of B-100 and B-48?
In the standing plasma test, which finding indicates the presence of chylomicrons?
Which LD isoenzymes decrease when stored at 4°C?
Which of the following is a correct pairing described in the notes?
In Cushing's disease, what is the pattern for plasma cortisol, ACTH, and response to high-dose dexamethasone suppression test?
Which type of bond predominates in the secondary structure of proteins?
What is the reference range for urine amylase?
Gestational DI is caused by which mechanism?
A flat gamma curve on serum protein electrophoresis is most closely associated with which condition?
Which electrolytes are designated for volume and osmotic regulation?
Which glass is low thermal resistance and suitable for strong acids and alkali?
What is the peak time after intravenous administration for digoxin?
Hyperglycemic hormones are released at what plasma glucose level?
Which term describes results used as legal evidence?
Which test provides an indirect measure of thyroxine-binding globulin (TBG)?
If a compound has molecular weight 180 and valence 3, its equivalent weight is
Which speed value is exactly at the upper limit of 200-1000 rpm?
Which statement correctly describes catecholamines (tyrosine-derived amines) in terms of solubility and half-life?
When should neonatal screening for congenital hypothyroidism be performed?
Which item is NOT listed as an important component of a fluorometer?
In target therapy for high-risk patients, which lipid parameter should be optimized?
Panic values of hypoglycemia are defined as which plasma glucose levels?
Which HDL-C value is considered Desirable?
In the Reinsch test, which color indicates arsenic?
Which four components constitute the standard electrolyte panel plus a bicarbonate that is calculated?
What is the standard path length of a cuvet in most spectrophotometers?
In TLC, the retention factor (Rf) is calculated as which ratio?
Severe vomiting and severe burns are associated with what change in chloride levels?
Riboflavin (Vitamin B2) deficiency commonly presents with which symptoms?
Apoenzyme plus a prosthetic group forms which enzyme type?
In LDL homogeneous assay, which two reagents are used and what are their roles?
Which tumor increases AFP only?
The Joint Commission requires laboratories to be accredited by how many organizations?
Conn's syndrome is another name for which disorder?
Renal tubular acidosis affects chloride by causing:
Which instrument is used to measure NADPH in the reference method?
If solute volume is 4 mL and total volume is 20 mL, the dilution factor D equals
Which two hypothalamic nuclei store hormones released by the posterior pituitary?
Which method is a colorimetric method for chloride determination?
Which condition would increase the ionized fraction of calcium?
Which statement correctly defines Positive Predictive Value?
Which method is used for phosphate determination as described?
Which protein is NOT listed as one of the alpha-1 globulins in the material?
What is the angle range for arterial puncture at radial and brachial sites?
Which calcium measurement method is categorized as colorimetric?
The colloid inside thyroid follicles is primarily composed of which protein?
In electrophoresis scatter, which pattern is associated with large particles?
Which reaction type characterizes the Oliver-Rosalki CK determination method?
HbA1c testing should be repeated every how many months for patients noncompliant with targets?
What is the pH of the reaction in the Evelyn-Malloy method?
Which metals can cross the placenta?
The Van de Berg modification of Ehrlich reagent adds what to the reaction as an accelerator?
Which of the following is a storage function of the liver?
What is the reference method for therapeutic drug monitoring (TDM) and HbA1c measurement?
Which item is included in RECSQ analytical elements?
Which analyte is commonly preserved by chilling the sample immediately after collection?
Which lipoprotein density range is 1.006 to 1.019?
Which of the following are examples of automation systems?
What are the two calibration methods for micropipettors?
What is the primary purpose of antiglycolytic agents in blood specimens used for glucose testing?
Which protein is associated with obesity as a marker in the material?
Which ISO standard applies to clinical laboratories?
Using the transmittance formula T(%) = 10^(2 - A), what is the transmittance when absorbance A equals 0?
A noticeable error in indirect LDL estimation occurs when TAG exceeds what value?
Which statement correctly describes the percent liver damage for hepatitis and cirrhosis?
ApoA1 main distribution and function?
Which hormone is a regulator of calcium in the body?
Which condition is caused by defective copper reabsorption leading to low copper levels?
Which pairing correctly matches a cardioactive drug with its common indication?
Which immunoassay for thyroxine testing corresponds to a microparticle EIA with an ELISA sandwich format?
Panic values for pH are at which level(s)?
Symptoms beginning of hypoglycemia occurs at which plasma glucose level?
In the Walker/Karmen method for ALT determination, which substrate is used by the enzyme?
The smallest endocrine gland secretes which hormone?
Which foods are listed as BVCT (Banana, Vanilla, Coffee, Tea) affecting VMA/HMMA testing?
TBG levels depend on the levels of which substance?
Uric acid is a product of catabolism of which purines?
In cirrhosis, which laboratory pattern is typical?
In addition to chloride, which anion serves as an enzyme activator?
How is prostatic ACP calculated?
Which two drugs induce GGT?
Which statement best describes the three requirements for a standard curve?
In the context of reference interval vs reportable range, which statement is correct about the reportable range?
What are the two broad categories of ammonia determination methods described?
Which amylase method is described as Saccharogenic and expressed in Somogyi units?
In the perfect correlation principle, what is the slope?
Which of the following are indications for capillary puncture?
Reference range for creatinine using the enzymatic method in females?
Which photodetector type requires no external voltage?
Which counter type is typically used for gamma-emitting isotopes like I-125 and I-131?
Which biochemical marker is used to assess bone resorption in osteoporosis?
How many times should all tubes be inverted in general?
Which is an example of relative hyperproteinemia?
What is the reference range for T3U?
Phosphate is usually measured as which form?
Which disease is primarily associated with elevated HVA and VMA in urine measured by HPLC?
In scintillation counting, a crystal gamma counter is used to detect gamma-emitting isotopes such as which of the following?
Which pair best describes electromagnetic radiation?
In congenital adrenal hyperplasia, what hormonal pattern is typically observed?
What is the reference range for the amylase:creatinine clearance ratio (SCUA)?
Which type of error affects accuracy?
Which laboratory value is used to monitor long-term glycemic control in diabetes?
Which analytes are falsely elevated in ECO anticoagulants?
Metal fume fever is most strongly associated with inhalation of fumes of which element?
Which statement correctly describes Bronsted-Lowry acid-base theory?
Modified Van Handel Zilversmith method modifications?
Capillary electrophoresis is best associated with which separation mechanism?
Which MS technique is commonly employed for IEM screening?
What is the most common cause of biliary obstruction?
Which specimen is appropriate for measuring inorganic phosphate given diurnal variation?
Which statement about T3 production is correct?
ACS Primary Standard purity level is typically what?
What is described as the most common quality management framework?
In the colorimetric chemical method, LB yields which color product?
For UV and IR spectral measurements, which material is commonly used for sample cells?
Which patient preparation is recommended for catecholamine testing?
Laboratory error described as increasing sodium and potassium while decreasing chloride and bicarbonate would cause which effect on the calculated anion gap?
What is the Diazo blank composition in the 3-diazo reagents setup?
Which pair of markers are used as the two natriuretic peptide markers for congestive heart failure?
Which mnemonic corresponds to 'magnesium in, calcium out'?
The abbreviation VMA refers to which compound?
Which particle carries the highest cholesterol content?
Calibration of the pO2 electrode requires which standard?
Which immunoassay type is heterogeneous and uses microparticles in a solid phase with enzyme-labeled antibodies?
In the Porter-Silber test for hydroxycorticosteroids, which reagent is used and what color is observed?
The upper limit value of the cytocentrifuge speed range is which of the following?
What is the color observed in the standard alkaline phosphatase colorimetric method?
Reye's syndrome is characterized by a threefold increase in which markers?
Which of the following is an example of a TC pipette?
In normal serum, which LD isoenzyme predominates?
In the synthesis of thyroid hormones, which component is produced first?
In Henderson-Hasselbalch relation for bicarbonate buffering, pH equals pKa plus log of which ratio?
For individuals with at least one risk factor, how often should screening be performed?
On semilogarithmic paper used in spectrophotometry, what is plotted on the y-axis?
Which equation correctly represents the Lineweaver-Burk plot for enzyme kinetics?
Which method for urea determination uses diacetyl monoxime (DAM) to produce a yellow diazine?
Electrophoretic mobility: which lipoprotein shows beta mobility?
The SI prefix corresponding to 10^2, as listed in the material, is which?
Which protein is NOT typically part of the alpha-2 globulin band in serum electrophoresis?
Which of the following is NOT listed as an early or late biomarker of AKI?
Which pressure primarily governs water movement between body compartments?
Triglycerides provide energy primarily through conversion to which molecule?
CRP levels: which range defines high risk for CHD/stroke?
Which are precipitation agents for protein turbidimetry?
Which enzyme catalyzes the iodination and coupling steps forming MIT/DIT and T3/T4 during thyroid hormone synthesis?
Which dye-binding reagent is most specific and precise for albumin measurement?
What is the SI unit of enzyme activity?
For individuals aged 45 with more than one risk factor, how often is screening recommended?
What pre-treatment step is required before electrophoresis for CSF and urine samples?
Ketonuria contributes to hyponatremia by which mechanism?
Approximately what percentage of testosterone is bound to albumin?
What is the principle behind most glucose point-of-care tests?
Which cell type is listed among liver tissue components as a non-parenchymal cell involved in extracellular matrix production?
Which biomarker is the earliest enzyme elevated in acute myocardial infarction?
Which condition involves tissue damage due to iron overload?
Which element is associated with Minamata disease (mercury poisoning)?
In ectopic Cushing syndrome, what is the pattern for cortisol, ACTH, and high-dose dexamethasone suppression test?
Which trisomy is NOT typically associated with decreased AFP in maternal screening?
Which of the following is a known contributor to hyperkalemia?
Which additive is commonly used to prevent glycolysis in samples for glucose testing?
Which electrophoresis pattern is associated with juvenile cirrhosis?
Which equation corresponds to the De Long method for estimating VLDL in mg/dL?
Dissolved CO2 in blood (H2CO3) is calculated as:
Which method for ethanol measurement is described as enzymatic?
Which BAC range corresponds to stupor?
The indirect pathway of HDL cholesterol return to the liver involves CETP-mediated exchange. Which option best describes this pathway?
Normal phase HPLC is characterized by what?
Which of the following is an enzyme commonly measured in clinical chemistry?
Which hormones are produced by the thyroid gland?
D and L enantiomers are based on which carbon's hydroxyl group?
Lead exposure can occur via which routes?
Which has about 10-40% carbohydrate content?
In electrophoresis, what term describes the movement of buffer ions and solvents within the support material?
Which item from the HARDASS mnemonic is a drug that can contribute to normal anion gap metabolic acidosis when given?
Which lipoprotein is the second most atherogenic?
Cushing's disease is listed as an additional cause of hypernatremia. Which of the following is another listed cause?
Pipets by Design differentiate contain vs deliver. Which term corresponds to contain?
Which particle has the highest triglyceride content?
In Nesslerization for ammonia, the reaction of ammonium with dipotassium mercuric iodide yields which color?
On a Lineweaver-Burk plot of 1/v versus 1/[S], what is the y-intercept?
The Krebs cycle yields how many ATP per acetyl-CoA under aerobic conditions?
What is the pH range for Type 3 reagent water?
In fluorescence polarization immunoassay, polarization is inversely related to the analyte concentration.
Which lipoprotein has the highest protein content?
Chemical storage should be organized according to which criterion?
Which lipoprotein density range is 0.93 to 1.006?
Decreased unmeasured cations, such as in hypocalcemia, would have what effect on the anion gap?
In a verification study of a reference interval with 20 subjects, how many results should fall within the interval for acceptability?
What percent of T4 is bound to albumin in circulation?
Which medium is used for separation by both size and charge in electrophoresis?
Which test is used as a screening test for primary hypercortisolism?
Which diagnostic test is used for confirming GDM, DM, and impaired glucose tolerance?
TC pipets are calibrated with which substance?
Which speed value is exactly at the lower limit of 200-1000 rpm?
What is a synonym for analytical sensitivity?
Mature alpha-HDL returns cholesterol to the liver via two pathways. Which statement correctly describes these pathways?
What is the defining feature of monoclonal gammopathy on electrophoresis?
Prehepatic conditions include which of the following?
Type 1a/1.5 is Latent Autoimmune Diabetes of Adulthood and is characterized by a single specific islet cell autoantibody.
Which lipoprotein has protein greater than cholesterol as its major component?
On linear graph paper in spectrophotometry, what is plotted on the y-axis?
Lead exposure inhibits which enzymes involved in heme synthesis?
What is the gold standard test for confirming growth hormone deficiency?
What was the earliest method used for bilirubin determination?
In the G6PD-based method, what spectrophotometric detection is used?
What instrument is used to measure rotor speed during centrifuge calibration?
Which of the following is NOT a Dye Lake dye?
What is the recommended lancet length for adults?
Which of the following is NOT a CHIMPS cause of hypercalcemia?
Macroenzymes have a higher half-life because they are less excreted in the urine. Which statement is true?
Which test is described as the SIADH diagnostic test in the material?
Which protein increases up to ten-fold in nephrotic syndrome?
What does Multipoint refer to in kinetic assays?
Panic values for pCO2 are at which values?
Normality can be expressed as which of the following?
For osmolality testing, which specimen is described as the best?
Increased renin production is typically associated with which initial blood pressure state?
Which measurement provides an estimate of glomerular filtration rate (GFR)?
What is the main driving force of the bicarbonate-carbonic acid buffering system?
Which of the following is not one of the nutritional status markers listed?
Jaundice is typically clinically apparent when bilirubin reaches what range?
What percentage of T3 is produced directly by the thyroid gland?
One example of secondary hyperuricemia is which condition?
Hypoprogesteronemia is associated with which outcome?
What is the maximum total error allowed for HDL-C measurements under NCEP guidelines?
In hyperlipoproteinemia, which plasma appearance is associated with high chylomicrons (CM)?
The SI prefix for 10^15 is which of the following?
Which of the following is a cause of hypokalemia due to gastrointestinal loss?
Which lipoprotein is categorized as beta-lipoprotein?
Which method is used for chloride determination according to Schales and Schales?
Which apolipoprotein serves as the remnant receptor ligand recognizing chylomicron and VLDL remnants for hepatic uptake?
Type 3a diabetes involves genetic defects for beta cells.
Which of the following is a naturally occurring opiate?
Which is listed as a function of proteins?
Approximately what percentage of testosterone is free in plasma?
In time-domain detection of a double-beam spectrophotometer, how many detectors and choppers are used?
Which marker is used to detect cerebrospinal fluid leakage?
Which term describes the migration of large ions in electrophoresis?
Which molecule is the other organic coenzyme listed besides NAD/NADH?
Blow-out (viscous) and Self-draining (non-viscous) describe which two pipette drainage characteristics, with BO and SD correspondences?
In CQI, which belt level corresponds to project sponsors?
In fulminant hepatic failure, which marker is disproportionately elevated relative to others?
Peak-level collection times for different administration routes are: IV after 30 minutes, IM after 60 minutes, Oral after 1-2 hours.
What is the formula for percent transmittance in spectrophotometry?
Which anticoagulant is used for enzyme testing?
The chorion is composed of which two layers?
FTI is a product of TT4 and which factor?
Which test is used as a screening test for primary adrenal insufficiency?
Which electrophoresis pattern corresponds to chronic infection with a delayed response?
Intestinal alkaline phosphatase is more commonly seen in secretors of which blood groups?
What is considered the gold standard biomarker for acute myocardial infarction?
In postmenopausal women, which estrogen predominates?
Which test is used as a confirmatory test for primary hyperaldosteronism?
The measurement of 1,5-anhydroglucitol is reported in which unit?
For which tube type is the inversion exception 5 times?
An LDL-C of 150 mg/dL falls into which category?
Transferrin is described as which type of protein?
Macroenzyme 2 is bound to what?
Which compound is primarily produced as an androgen by the adrenal cortex?
Which is the best indicator of precision in a laboratory measurement?
Neonatal jaundice is noted at how many days of life?
Andersen disease is due to deficiency of which enzyme?
Which equation represents Planck's formula relating energy to frequency?
Which enzyme is most specific for pancreatitis?
To diagnose diabetes, HbA1c must be at least what value on two occasions?
Enzyme denaturation is usually observed at which temperature range?
Which hormone is produced entirely within the thyroid gland?
Which method is described as a reference method for HbA1c testing?
What is the standard formula for percent transmittance in spectrophotometry?
Which of the following is a direct expression of Beer's Law relating absorbance to concentration and path length?
Which apolipoprotein is distributed in CM, VLDL, and HDL and has a structural role?
Which lipoprotein contains the highest phospholipid content?
Aluminosilicate glass is approximately how many times stronger than borosilicate glass?
Which dye-binding reagent is specific but interfered by hemolysis and bilirubin?
What is the first step in method evaluation?
Which of the following is a semi-synthetic opiate?
Which lipoprotein has exogenous triglycerides as its major component?
Increased breakdown of albumin is seen in which condition?
Which value represents the acceptable total error for triglyceride measurements under NCEP guidelines?
Which tissue is a primary target of oxytocin to induce labor?
Which enzyme releases free cholesterol from macrophages?
Uric acid deposition in tissues occurs when serum uric acid exceeds which threshold in mg/dL?
The measuring electrode tip for a pH electrode is commonly made of which material?
Congenital Minamata disease is caused by exposure to which metal?
What is the rpm range for a cytocentrifuge used for cell counts?
Plasma ACTH levels in ACTH-dependent Cushing syndrome are typically:
What is the ADA pre-prandial glucose goal?
If a blood sample is contaminated with intravenously infused fluids, which analyte is most likely to show an artificial increase?
Which test differentiates neurogenic DI and primary polydipsia from nephrogenic DI?
In the linear equation y = mx + b, what does b represent?
Which of the following is a major risk factor that modifies LDL goals?
Which pairing correctly matches an acid-base disorder with its major cause and compensation?
How long can refrigerated serum samples be stored before analysis?
Which automatic micropipettor operates like a hypodermic syringe for viscous samples with constant aspiration force?
Which bone houses the pituitary gland?
Inappropriate ACTH production refers to which condition?
If pseudocholinesterase is absent, what condition is expected?
Which is the most potent hallucinogen?
Cori disease (Type IIIa) is due to deficiency of which enzyme?
130 mmol/L sodium is associated with the onset of hypokalemia due to renal threshold. Which option reflects this level?
Which defect is associated with Gilbert Syndrome among hepatic B1 diseases?
Appearance corresponding to triglyceride level around 350 mg/dL?
For catecholamine testing, which specimen type is described?
Which combination of hormones originates from the skin and liver respectively?
Which precaution should be avoided prior to collecting a sample for ammonia measurement?
It is the number of particles a molecule dissociates into when dissolved in a solvent.
In hyponatremia, plasma osmolality is typically:
Which is the correct formula for osmolality when concentrations are given in mg/dL?
For CVA collection, how much initial volume should be discarded?
Which ion acts as an activator of alkaline phosphatase?
Fructosamine is contraindicated in which condition?
In the measurement of Total Iron Binding Capacity (TIBC), what is the purpose of saturating transferrin with ferric iron?
Citrate tubes have an inversion exception of how many times?
Which compound is used to calculate bicarbonate in the anion gap calculation described?
What CRP level range defines low risk?
Reference range for creatinine using the Jaffe method in males?
Diagnostic test for galactosemia measures activity of which enzyme in erythrocytes?
Osmolality is calculated as Molarity multiplied by what factor?
Which two endogenous markers are used to estimate glomerular filtration rate?
Approximately how many primordial follicles are present in neonates?
Decreased creatinine clearance indicates which of the following?
Which are the three steps in iron determination from transferrin?
B-VLDL is seen in which hyperlipoproteinemia?
In Asia-Pacific BMI categories, obesity is defined as BMI greater than:
Which reagent is used in the colorimetric Jaffe method for creatinine determination?
What is the silicate concentration for Type 1 reagent water?
Which set of enzymes is involved in interconversion of mature alpha-HDL subspecies?
Which drug is commonly used to treat petit-mal (absence) seizures?
For detecting pheochromocytoma, which metabolites are primarily measured?
Lactate dehydrogenase (LD) measurements are described as what kind of unit related to its subunit composition?
Which term describes the process of determining if a patient has a disease?
Which micropipettor uses suction to draw liquid into the tip?
What is the reference method used for trace element analysis?
Which parameter best reflects overall patency of bile flow?
Which test is used for monitoring thyroid hormone replacement therapy?
Which of the following is not a central tendency measure?
What is the reference method for electrolytes?
Addison's disease affects sodium and potassium balance due to hypoaldosteronism. Which electrolyte pattern is typical?
Which statement best defines pharmacokinetics?
ApoB100 main distribution and function?
Which condition is listed as a cause of hypernatremia due to increased intake or retention?
What is the main endogenous source of cholesterol?
Which protein is an example of a tertiary structure?
What is the arterialization temperature used in the procedure?
What are the two specimens typically used for osmolality determination?
Which molecule mediates cell adhesion and is involved in wound healing?
In HDL-C measurement using precipitation or immunoassay capture, which component is targeted for removal or binding?
Which solutions are used for spectrophotometric calibration methods?
How long can samples be stored at -20 C?
Which two urinary metabolites are used to assess testosterone activity?
Which copper reduction method is most commonly used in glucose measurement?
Which condition best corresponds to primary hypergonadism?
Lean Six Sigma addresses two questions. Which pair is correct?
Which of the following best describes the two items given in the notes?
Which of the following is a fully synthetic opiate?
Inhibition by wheat germ lectin, which amylase isoenzyme is inhibited?
Which hormone initially increases calcium and phosphate release after bone resorption and then excretes phosphate?
What is the first and most important screening test for evaluating thyroid function?
In electrophoresis scatter, which pattern is associated with small particles?
A BUN-to-creatinine ratio less than 10:1 is typically seen in which scenarios?
Which statement correctly interprets the range 200-1000 rpm?
Which follicle is selected to release the ovum and give rise to the corpus luteum?
In galactosemia, which enzyme deficiency is most common?
Which set represents the three categories of psychoactive drugs/antidepressants listed?
In the copper reduction methods, what is the initial product formed when glucose reduces copper sulfate?
What blank is used to correct absorbance due to reagent color?
Which markers are associated with hepatic detoxification function?
Which plasma protein has the highest affinity for thyroxine (T4)?
Which hormone from the anterior pituitary stimulates ovulation and testosterone production?
In clinical chemistry, NPN stands for?
Which counter type is typically used for beta-emitting isotopes such as H-3 and C-14?
What is the preferred duration for sitting or supine lying during phlebotomy?
What is the reference method for HbA1c measurement?
Macroenzyme 1 is bound to what?
What are the reference ranges for AST and ALT?
What percent hemolysis corresponds to gross hemolysis?
Which indicator is used in the method?
Which material is used for sample cells in the visible light region?
MODY stands for mature onset of Diabetes of the Young.
If fertilization occurs, which hormone helps maintain the corpus luteum?
What percentage of testosterone is bound to SHBG?
Which electrolyte is described as requiring fasting before measurement?
The measuring electrode buffer for a pH electrode is typically which salt solution?
The instrument principle used to determine oxygen saturation (O2SAT) in ABG analysis is:
Nonfasting lipid analysis is acceptable for two analytes. Which is NOT among them?
Normal arterial pH range is:
Acid phosphatase (ACP) often has optimal activity at pH approximately:
With a 1°C rise, pO2 changes by which percent?
The Martin-Hopkins method estimates VLDL using which approach?
What is unique about scintillation counting compared with other luminescence methods?
In the Biuret assay for proteins, how many peptide bonds are required for a positive reaction?
The Zimmerman test for 17-ketosteroids uses which reagent, and what color indicates a positive result?
Which metric equals TN divided by (TN plus FP)?
Which enzyme is NOT listed among the nine enzymes with macroforms?
Which pair of reagents corresponds to the two calcium precipitation techniques?
What is the critical pO2 value threshold?
What is the product of inner deiodination of T4?
In nutritional status assessment, which sequence correctly orders the markers from highest to lowest as listed?
In LDL homogeneous assay, which component is measured enzymatically after separation?
Calibration of the pCO2 electrode requires which standard?
Which luminescence technique uses ruthenium tris chelate as a substrate?
Spectrophotometry measures what type of light?
What is the correct expression for the anion gap as described in the material?
Which estrogen is described as cardioprotective and involved in coagulation?
Which detection methods are used for glucose oxidase–based measurements?
Which factor inhibits growth hormone secretion?
What are the three steps in the 3-step precipitation method?
Cocaine is described as a potent cardiac toxin that can cross the placenta and breast milk.
Impairment of which hormone/neurotransmitter is linked to higher drug dependency?
What is the reference range for Free Thyroxine Index (FTI)?
In the Lean 5S framework, what is the fourth S?
In Beer's Law, if the concentration doubles and the absorptivity and path length remain constant, what happens to absorbance?
In a Water Loading Test with 20 mL/kg ingestion, what is the normal urine response?
In glucose oxidase-based enzymatic assays, hydrogen peroxide participates in the detection step by reacting with a chromogen to produce color. Which statement best describes this role?
Which components define acid-base balance among the listed electrolytes?
Nesslerization in ammonia measurement yields which color?
Which transporter pumps free cholesterol to lipid-poor HDL to form nascent pre-B HDL?
What is the critical range for potassium?
What is the detection limit of a luminometer?
In the ferric reduction method, what color is the product formed after reaction with glucose?
Which condition causes a rightward shift of the simplified oxyhemoglobin dissociation curve?
Marker for bone resorption
Which of the following is NOT an example of a protein hormone?
What is the most common clinical use of tumor markers in cancer management?
Which of the following is a glycopeptide hormone?
Which unit would you expect to see for cytocentrifuge speed in a protocol?
Which medication is listed as a cause of normal anion gap metabolic acidosis (HARDASS)?
Which are the forms of subacute thyroiditis?
The dilution factor D is defined as
According to the SIBICO mnemonic, which statement is true?
For most drugs in therapeutic drug monitoring, what is the preferred specimen?
Drug metabolism occurs primarily in which organ?
What is the normal albumin-to-creatinine ratio in mg/g?
Which pairing correctly matches a testosterone disorder with its typical cause?
Which ALP isoenzyme is most heat stable and associated with lung cancer?
During IV sampling, how long should the IV be turned off and how much first sample should be discarded?
Which ABG handling practice is recommended?
Which of the following is a common support medium for electrophoresis?
Which marker is used postoperatively to monitor thyroid cancer?
What is a urinary metabolite of progesterone?
Which complication is primarily associated with type 1 diabetes?
What are the two forms of chromatography?
Estimated total body water for a 70 kg male is approximately how many liters?
Which CK isoenzymes are described as heat sensitive at 60°C?
Stray light is tested using which instrument component?
In drug transport, which protein predominantly binds drugs under acidic conditions?
Air exposure of a specimen tends to cause which combined change?
How long should plasma and cells be separated after collection to minimize glycolysis effects?
Under alkaline conditions, which is the primary drug transport protein?
Which pair correctly describes the two common methods for measuring bicarbonate in clinical chemistry?
Placenta: which effect regarding insulin?
How many types of thermometers are listed?
Which statistic is used to confirm accuracy?
What is the normal reference range for total protein in serum?
Which apolipoprotein has main distribution in chylomicrons, VLDL, and HDL and functions as a structural component?
What is the blood to plasma ratio for therapeutic drug monitoring monitoring?
Which markers are used to monitor for recurrence after breast cancer treatment?
Which reagent is used to stain CSF for protein analysis in electrophoresis?
Which hypothalamic releasing hormone stimulates the release of ACTH from the anterior pituitary?
Which apolipoprotein is predominantly distributed in HDL and has a structural role?
In the ALT assay using pyruvate, what is the reaction product?
Direct spectrophotometry of total bilirubin is measured at which wavelength?
Which cleaning method is listed as best for plastic and glassware?
Which lipoprotein density range corresponds to LDL?
What is the normal range for 1,5-anhydroglucitol (1,5-AG)?
Which condition yields the highest elevation of alkaline phosphatase (ALP)?
In the Biuret reagent, which base is used?
Which two hormones are produced by the adrenal medulla?
Moderate elevation of LD corresponds to which ULN range?
Antiglycolytic agents prevent the decrease of which metabolite?
Major substrate precursor of adrenal cortex hormones?
Hyponatremia due to vomiting and diarrhea is due to which mechanism?
Which of the following are cofactors in enzyme reactions?
For TCO2 measurement, which method alkalinizes all CO2 to bicarbonate for measurement?
If TAG is high, LDL-C is determined using which method?
Beta-gamma bridging due to IgA is associated with which condition according to the material?
Which parameter represents constant systematic error?
In the perfect correlation principle, what is the Y-intercept?
Which marker is used as an obesity marker in the material provided?
What is the critical range for pCO2 in arterial blood gas values?
From most anodal to least, what is the order of amylase isoenzyme mobility?
In gravimetric calibration, what solution and condition provide the most accurate standard?
What fraction of extracellular fluid is intravascular (plasma)?
Which type corresponds to Familial Dysbetalipoproteinemia?
Which statement correctly describes the structural difference between T3 and reverse T3?
Which liver macrophages are part of the reticuloendothelial system?
Which method is described as cheap but insensitive for urea determination?
What is the typical turnaround time for routine laboratory testing?
What is the reference range for albumin in serum?
The parameter associated with the cytocentrifuge in the notes is measured in which unit?
Which mediator is produced by the liver and mediates the action of growth hormone?
Thiamine deficiency can cause which conditions?
Anodic stripping voltammetry is used to detect which metals?
In brain tissue, which marker is more abundant: CKBB or Aldolase C?
Wetting agents or incorrect pH have what effect on unconjugated bilirubin?
Which hormone is part of the FLAT acronym for anterior pituitary tropic hormones?
In a Cusum chart, which axis represents the run number?
What centrifugation speed range and time are standard for separating serum?
What is the process of testing and adjusting an analyzer's readout for correlation with a standard called?
In ultracentrifugation, which lipoprotein resides in the topmost layer?
What is the commonly accepted reference range for blood urea nitrogen (BUN) in mg/dL?
Which lipoprotein is described as floating prebetalipoprotein with high cholesterol content?
Which of the following is a B1 hepatic disease?
The Szasz assay for GGT uses which substrates?
Which statement correctly contrasts polyclonal and monoclonal gammopathy?
Aspirin overdose commonly causes which acid-base disturbance?
Which MS technique is used for proteomics and microbial ID?
Which trace element is essential for DNA and RNA synthesis as a key cofactor?
Wavelength accuracy in spectrophotometry is assessed using which materials?
Which medium is used for size-based separation in electrophoresis?
An advantage of carbonic acid as the main buffer is that it can provide H+ and HCO3- for buffering.
Calibration should be performed every 6-12 months.
How often should semi-automated micropipettors be calibrated?
Decreased albumin with increased a1 and a2 is most associated with which condition according to the material?
Antiglycolytic agents are used if three tests are done in more than how many hours?
What term describes the integration of chemistry and immunoassay in modern analyzers?
Which tumor increases both AFP and hCG?
Which statement best aligns with the material regarding insulin?
In males, LH stimulates which cells to produce which hormone?
Which tube type is used to obtain serum after clotting?
Which tests are used to evaluate subclinical or subacute hyper- or hypothyroidism?
FT3 is normally tested only when which two test results are observed?
What is the most common cause of hypophosphatemia?
Prolonged bedrest decreases which serum protein?
Which Fredrickson Type is Familial combined hyperlipoproteinemia (high LDL and VLDL)?
Which of the following is a cellulose derivative used as a support medium in electrophoresis?
Sitting to supine posture leads to what change in plasma concentration?
Which enzyme is used in the enzymatic ammonia assay?
In Friedewald estimation, VLDL in mg/dL is calculated as TAG divided by what factor?
ADA HbA1c target for many adults with diabetes is less than what percent?
Which of the following is NOT listed as a regulator of body water balance?
What is the absorbance maximum for the Jendrassik Groff method?
Which are two components of continuous flow systems?
Na+/K+-ATPase pump uses what type of transport?
Water for higher purity techniques is designated as Special reagent water.
Slight elevation of LD corresponds to which ULN range?
Which analyte increases when serum or plasma is stored at 4°C?
The photomultiplier tube (PMT) amplifies light by approximately how many times?
Which equation correctly represents the Michaelis-Menten model for velocity v as a function of substrate concentration [S]?
Which enzyme esterifies free cholesterol inside nascent pre-B HDL to form mature alpha-HDL?
Is 800 rpm within the specified cytocentrifuge speed range?
Which element has an atomic weight of about 23?
Which of the following is an aldose?
Which plastic is autoclavable primarily for temperature tolerance?
Which condition is NOT associated with increased AFP?
Glucose binds to which site on hemoglobin?
Which combination of anterior pituitary hormones is released in response to Thyrotropin-Releasing Hormone?
Which drugs contribute to hyperkalemia by inhibiting uptake by the heart via Na+/K+ ATPase?
Which statement correctly describes steroid hormones?
Which trace element tends to bind sulfhydryl groups in proteins?
Which LD isoenzyme remains active after heat denaturation?
During pregnancy, after the first trimester, which structure is the major producer of progesterone?
What is the alkaline reagent provided in the Reitman Frankel reaction?
What color is produced in the Evelyn-Malloy color reaction?
Phototherapy for neonatal jaundice decreases bilirubin by what percentage per hour?
Which statement correctly describes Metyrapone?
For photosensitive materials, which glass type is used?
What is the heparin concentration in ABG collection per milliliter of blood?
In kidney disease, BUN is high in blood and high in urine; in liver disease, BUN is low in blood with a BUN ratio less than 10:1.
For osmolality determination, which specimen is listed in the material?
In laboratory terminology, a method with documented accuracy and precision is referred to as what?
Which molecules form the ammonium-selective membrane in ion-selective electrodes?
Which LD measurement method is more common?
Which of the following are secondary markers for obstructive jaundice?
Hypoxanthine Guanine Phosphoribosyl Transferase is associated with the conversion of uric acid to which compound?
The limit of detection for CLIA is expressed as zeptomoles, equal to which exponent?
In the placenta's trimester-specific production, which hormone is primarily produced during the second trimester?
A BUN-to-creatinine ratio greater than 20:1 with a normal creatinine level is most consistent with which condition?
Prerenal azotemia is suggested by which pattern of BUN and creatinine?
Which equation is more commonly used to estimate glomerular filtration rate than Cockcroft-Gault and MDRD?
In skeletal muscle, which marker is most abundant according to the given abundance order CK1 > AST > Aldolase > LD4,5?
In glucose measurement using glucose dehydrogenase, which cofactor is detected?
Altitude in feet at which blood volume decreases when collected?
In the standing plasma test, what indicates the presence of both VLDL and chylomicrons?
Which method is used as a reference method for HbA1c analysis in clinical labs?
Which sugar is non-reducing?
What structure connects the hypothalamus to the anterior pituitary?
Hyperglycemic hyperosmolar nonketotic coma is most commonly associated with which type of diabetes?
Ammonia constitutes what percent of total non-protein nitrogen (NPN)?
Which method is colorimetric-spectrophotometric for transaminase determination?
What is the conventional unit for enzyme activity expressed as μmol per minute?
Which factor is listed as causing a rightward shift of the oxyhemoglobin curve by increasing metabolic activity?
VLDL is faster than LDL in electrophoresis because VLDL is more negatively charged. True or false?
Another consequence of squeezing the puncture site is the introduction of what into the specimen?
Which of the following is NOT listed as a common interference in Trinder-type glucose assays?
What is the stated lethal daily dose of lead?
Which blood collection tube is sensitive to sunlight and should be protected from light for proper coagulation testing?
Spectroscopy is categorized into two main groups. Which list correctly pairs examples for emission and absorption methods?
Which formula defines Positive Predictive Value?
Which sequence correctly lists the three stages of alcoholic liver disease?
Von Gierke disease (Type I glycogen storage disease) is due to deficiency of which enzyme?
Which condition shows TSH normal, FT4 normal, TT3/TT4 high, and T3 uptake low due to high thyroid-binding globulin?
Which type of silica glassware is considered best among three silica glassware options?
Which of the following is NOT a Dye Lake dye?
In arterial blood gas sample handling, pH decreases by how much for every 20-minute delay?
Which dye is most commonly used as a calcium-binding dye in spectrophotometric assays?
Which test differentiates neurogenic DI from primary polydipsia?
Which hormone from the anterior pituitary triggers ovulation?
Which enzyme is common to both enzymatic triglyceride measurement methods?
In acidemia (acidosis), what happens to ionized calcium?
Tacrolimus is approximately how many times more potent than cyclosporine?
Km is defined as substrate concentration at what fraction of Vmax?
Which enzyme acts as a hydrolase and is used as a marker for liver disease?
What happens to pCO2 and pH when air bubbles are present in the sample?
Pronounced elevation of LD is defined as which multiple of the ULN?
Which of the following is NOT listed as a cause of hypomagnesemia?
What is the recommended cuff pressure to use as a tourniquet during venipuncture?
T3 Uptake provides what kind of relationship to thyroxine-binding globulin (TBG)?
Which form is the active form of vitamin D?
Acid cleaning solutions contain which compound in concentrated sulfuric acid?
Which amino acids contribute to protein absorbance at 280 nm?
Which component of the simplified quality scheme is described as monitoring only precision?
The two toxic effects associated with Aminoglycosides and Vancomycin are:
Which lipoprotein is characterized by cholesterol being greater than protein as its major component?
What is the colored reaction product formed in the Reitman Frankel method (denoted as brown)?
Which MS technique is typically used for drug analysis?
What type of feedback regulates oxytocin release during labor?
What are the two most common chromogens used in Trinder-type glucose assays?
Which metal is associated with two diseases named Pink disease and Minamata disease?
What is the recommended butterfly needle length?
Which enzyme has the highest circulating concentration?
Glycerol + periodic acid yields which product?
What is the electrophoretic order from cathode to anode?
Tartrate inhibits which ACP source?
Which of the following describes Type 2 reagent water characteristics?
Which enzyme's decrease is clinically significant?
Calibration of the pH electrode requires which of the following?
Which hypothalamic releasing hormone stimulates the release of FSH and LH?
What is the recommended fasting duration before a 2-hour OGTT?
Which test increases specifically in ESS/NTI?
Which plastic is autoclavable due to chemical and temperature resistance?
Which Aldolase isoenzyme is primarily located in brain tissue?
Quaternary structure is stabilized by which interactions?
In the Reinsch test, which color indicates mercury?
Which drugs are considered first-generation antiepileptics that require therapeutic drug monitoring?
Which two parameters are calibrated in centrifuge performance, and how frequently should calibration be performed?
Which of the following is NOT a continuum light source?
By what factor does BUN convert to urea?
Extra bands in plasma and hemolyzed serum during electrophoresis and their locations?
Which non-protein nitrogen does not measure kidney function?
What are the intermediate products before urea is produced?
In renal dysfunction, which statement best describes urine amylase and urine creatinine levels?
By how many fold is 24-hour urine free cortisol typically increased in primary hypercortisolism?
In the simplified quality scheme, QA is applied to how many analytic areas?
Which instrument is used to measure divalent ions and trace elements via photometric methods?
In the Cockcroft-Gault equation, which factor is applied if the patient is female?
The RST clotting time is limited to how many minutes?
After precipitation or color method, which chelating agent is commonly used to separate calcium from dyes and reach endpoint color?
Diagnostic tests of hypoglycemia?
Glucose decreases per hour under room temperature conditions?
For transaminase elevations, acute hepatitis and liver necrosis reach what multiple of ULN?
How should a cortisol sample be collected for accurate measurement?
Which method is used to separate and quantify catecholamine metabolites such as HVA and VMA in urine?
Busulfan belongs to which class of chemotherapeutic agents?
Which statistical test is used to compare the means of two groups?
Which form of mercury is primarily considered an environmental pollutant?
Which anticoagulant is preferred for ABG analysis?
What is the major CK isoenzyme in skeletal muscle, constituting about 94-100%?
Which stopping agent is used in the Jendrassik Groff method?
Initial control limits are established by analyzing controls over how many consecutive days?
Which tumor increases hCG only?
Which statistical test is used to assess precision (variance)?
Which conjugated protein type has the highest carbohydrate content?
In air-displacement micropipettors, the tip is made of which material?
In the simplified quality scheme, CQI primarily focuses on which activity?
Threshold limit value is the allowable exposure for an employee during an __ hour day.
In the pathway, which sequence best describes the conversion: DHEA to testosterone to estrogen?
The Ferro-Ham chloranilic acid precipitation method for calcium uses which acid as reagent?
Deficiency of which vitamin leads to hemorrhage and bruising?
In flame photometry, which color corresponds to barium emission?
Which enzyme catalyzes the initial carboxylation of phosphoenolpyruvate with bicarbonate to form oxaloacetate in the described pathway?
Which dispersive element yields non-linear dispersion and is used for higher frequency light?
Among the diurnal variation list, which hormone is higher in the PM period?
Which of the following is a reason discrete analyzers are named as such?
Steady state is typically achieved after how many half-lives?
What is the arterial puncture angle for the femoral site?
Which two analytes increase when serum is stored at room temperature?
Which enzymatic creatinine method uses creatininase with peroxidase (POD) as part of the coupled reaction?
What is the major cause of an outlier in assay results?
Which dye-binding reagent is most common for albumin measurement?
In gross hemolysis, which enzyme activity is most affected?
Routine renal function testing commonly measures which biomarker?
In malnutrition indicators, transthyretin is used as a marker for which condition?
What is considered a desirable VLDL level?
Liquid excess anticoagulant effect leads to which change?
Hyperkalemia due to cellular shift is most strongly associated with which condition?
Which of the following is a DOWNTIME waste?
THBR stands for which term?
Fanconi-Bickel syndrome is associated with a defect in which transporter?
Which enzyme converts T4 to T3?
Which substance is a classic unmeasured anion contributing to high anion gap metabolic acidosis?
For every 100 mg/dL increase in glucose, how many mmol/L of sodium decrease?
In the MDRD equation, how many variables are used?
Type 2 diabetes mellitus is non-insulin dependent diabetes mellitus (NIDDM).
Abrupt loss of albumin is most commonly associated with which condition?
Euthyroid with low TBG occurs in which situations?
The Ferriman-Gallwey Scale is used to grade which clinical feature?
Which enzyme is described as the smallest enzyme in this context?
Which class of hormones is characterized by water-soluble solubility, no carrier, and a half-life of about 10-30 minutes?
What is the reference range for ammonia in micrograms per deciliter?
Which urinary metabolite is the end product of metabolism for both epinephrine and norepinephrine?
Lead exposure inhibits enzymes involved in which essential process?
In euthyroid sick syndrome, which hormone is elevated?
What color is produced in the Jendrassik Groff color reaction?
In the AST assay employing MDH, what is the reaction product?
Which set of changes is characteristic of uremia?
Which lipoprotein is the most atherogenic lipid and the primary marker of coronary heart disease?
Glycogen stores are depleted within approximately how long during fasting?
Which adrenal medulla tumor is typically associated with increased VMA but not HVA?
Which value represents a Normal triglyceride level?
Fructosamine is indicated in which conditions?
What is the upper limit of the normal osmolal gap (mOsm/kg)?
Which adipokine is inversely associated with metabolic syndrome risk?
In the Free Thyroxine Index formula, T3U is divided by what value?
What is the rapid screening method for trace elements?
Which enzyme is inhibited by antiglycolytic agents?
Which laboratory method is used to detect urinary estrogen via a color reaction and yields pink on a positive result?
Pituitary adenoma size is defined as microadenoma or macroadenoma. A microadenoma is defined as less than how many centimeters?
Which of the following is a ketose?
What is the reference range for total protein in serum?
Prealbumin serves as a transport protein for which hormone or molecule?
Creatinine and BUN are not increased until GFR decreases by about what percentage?
Which trace element is classically associated with a garlic odor in poisoning cases?
Triose phosphate isomerase is categorized under which enzyme class?
Kinase enzymes belong to which category?
Which of the following is NOT a sedative/hypnotic/CNS depressant listed?
Which substance increases in the blood as a result of cigarette smoke exposure?
Which hormone from the anterior pituitary stimulates the production of thyroid hormones?
A BUN-to-creatinine ratio greater than 20:1 with an elevated creatinine level is most consistent with which type of azotemia?
Which test is described as the most specific and sensitive test for thyroid dysfunction?
Which minerals are involved in production and use of ATP from glucose?
In chemical storage, acids should be stored separately from bases.
For every degree Celsius increase, the reaction rate approximately doubles? (temperature rule)
In the Kober test for urinary estrogen, which reagent yields a pink color with sulfuric acid?
Which material is used as the chloride-selective membrane in ion-selective electrodes?
Which protein is NOT a beta-globulin?
Which statement about systematic errors is true?
What fraction of total body water is intracellular?
Which method is considered the reference method for total protein measurement by nitrogen content?
Which vitamin is known to interfere with some immunoassays when taken in excess?
What is the ferritin reference range for healthy adult men?
The measuring electrode buffer for a pCO2 electrode is usually which buffer?
Which light source covers the spectrum from ultraviolet to visible?
Which hormone reflects placental function and remains increased throughout pregnancy, aiding estrogen and progesterone production?
In the Berthelot method for ammonia determination, which color is produced that is detected colorimetrically?
Which of the following is a classic cause of increased anion gap metabolic acidosis?
Gc-Globulin is also known as which protein?
In the 3 diazo reagents setup, what is Diazo A composition?
Which of the following describes polyacrylamide-based gel electrophoresis?
Which expression correctly calculates osmolality from measured sodium, glucose, and BUN?
Gestational diabetes mellitus may convert to type 2 diabetes in 30–40% of cases within 10 years.
The isoelectric point is the pH at which a protein has a net charge of what?
Six Sigma is applied primarily to achieve what?
What are the two general methods for triglyceride measurement?
Postprandial glucose normalizes after how many hours following a meal?
1 mole D-Glucose equals how many osmoles when dissolved in water?
According to NCEP goals, if CHD is present, the LDL-C target is:
Gross hemolysis can falsely elevate CK measurements due to the release of which enzyme?
The venous anion gap typically falls within which range?
Macro-CK or IgG-bound CK1 is associated with an apparent increase in which CK isoenzyme?
What is the rpm for a horizontal head (swinging-bucket) centrifuge?
In automation, what does discrete mean?
What term describes the amount of solute in a given amount of solution?
Which triglyceride level category indicates high risk for CHD?
First abnormality and recovery seen in hyperthyroidism is which index?
In a double-beam spectrophotometer, how many detectors are used and how many beam splitters are there?
pH of maximum activity for most enzymes is typically around:
Which of the following is a measuring pipet?
Which method characterizes third-generation TSH assays?
If you list both cytocentrifuge speed and osmolality specimen in a single statement, which would be correct?
Which acids are graded as 2 in the laboratory severity scale?
What are the two major sources of ACP?
What is the length range given for microwaves?
In the enzymatic determination of urea, what is produced when urea reacts with urease?
What is the expected result of an overnight dexamethasone suppression test in primary hypercortisolism?
The F-test ratio is defined as the ratio of which quantities?
Which technique is more sensitive than fluorometry?
In tetany due to hypocalcemia, the calcium level is typically which of the following?
Which enzymes are typically elevated in a space-occupying lesion in the liver?
What is the critical range for magnesium?
Markers for preterm delivery and threatened abortion
The highest CK elevation is observed in which condition?
In congenital adrenal hyperplasia due to 17α-hydroxylase deficiency, which metabolite is reported as high?
The F-test is considered significant if the ratio exceeds which threshold?
A negative difference is described as which directional shift?
Continuous Monitoring/Kinetic assays are defined by which feature?
Which condition is listed as a cause of a low osmolal gap?
The T-test formula used here uses which numerator?
In rapid screening methods for trace elements, the sample used is urine.
Which marker measures very short glycemic control over about 1-2 weeks?
What bilirubin level constitutes a panic value for kernicterus?
Sertoli cells produce which two substances?
In primary hypothyroidism, which pattern best matches TSH, FT4, TT3/TT4, and T3 uptake?
Main source of error in lipase determination?
Approximately how many grams does 1 milliliter of pure water weigh?
The post-postanalytical phase covers which activity?
Which molecule is an organic coenzyme?
In the simplified quality scheme, which term represents the overall program ensuring results meet healthcare service requirements?
What percentage of total NPN is urea?
Mercury exists in three forms. Which option correctly lists these forms?
Main source of error in amylase determination?
Potassium levels in ectopic Cushing syndrome are typically:
Calcitonin is most closely associated with which thyroid disease?
Which pair of serum proteins are negative acute-phase reactants?
What is the normal osmolal gap range?
An increased beta or an unusual band between alpha-2 and beta indicates which condition?
Which of the following is a Dye Lake dye?
Lactate produced in anaerobic glycolysis yields how many ATP per glucose?
The conductimetric method for ammonia detection relies on which observable change?
What is considered the best specimen for arterial blood gas (ABG) analysis?
Standard QC uses how many levels and how often?
Direct osmolality is measured by which instrument?
Which photodetector is noted for excellent linearity?
Which chart can only detect systematic error?
Which statement best describes the diagnostic criterion for insulinoma/endogenous hyperinsulinism after fasting?
Which technique is used as a reference method for HbA1c measurement?
In the 3 diazo reagents setup, what is Diazo B composition?
Which additive is used in coagulation testing tubes?
Which technique is an amperometric method?
Which reagent is used to differentiate LD isoenzymes on gels?
Which of the following is listed as a hyponatremia cause under 'Other causes'?
Which criterion is used to stage acute kidney injury?
Not prone to false negatives is best described as which analytical property?
In uremia, which electrolyte and acid-base disturbances are commonly observed?
Which equation correctly represents the Henderson–Hasselbalch expression for pH in terms of bicarbonate and carbonic acid?
In immunoassays for therapeutic drug monitoring, which description matches Microparticle Enzyme Immunoassay?
Which support is used in thin-layer chromatography (TLC)?
McArdle disease is caused by deficiency of which enzyme?
Which molecule is formed when glucose is phosphorylated in the first step of glycolysis?
In acute pancreatitis, amylase typically peaks at approximately how many hours after onset?
What is the reference range commonly cited for alkaline phosphatase activity in U/L?
Which of the following lists the four colligative-property changes associated with high osmolality?
Before a 2-hour OGTT, carbohydrate intake should be at least what amount for 3 days?
Glutathione synthetase belongs to which enzyme class?
For viscous samples, which pipetting mode is recommended?
Which two proteins are referred to as enzymatic carriers?
Kasahara isoenzyme is associated with which cancer?
In hemolytic anemia (HA), how are G6PD and PK levels affected?
What density and duration are used in ultracentrifugation for HDL-C isolation?
How are air bubbles prevented during sample collection?
In the refrigerator test pattern, which observation corresponds to No CLOT and Clear Plasma with Increased B band (Pattern 2a)?
Which electrolyte primarily regulates the ATPase ion pumps?
Electrophoretic mobility: which lipoprotein shows pre-beta mobility?
Which of the following is a recognized class of enzymes?
Which item is NOT listed as an analytical element in RECSQ?
Which of the following is NOT a proliferation signal inhibitor?
Which enzyme in the enzymatic cholesterol method is responsible for producing hydrogen peroxide in the reaction sequence?
Which specimens are commonly used for measuring HVA/VMA by HPLC?
What is the product formed in the phosphate determination using the Fiske Subbarow method?
Linearity of the instrument is checked using which materials?
What is the major cause of a trend in assay results?
In the chemical method using alcoholic KOH, what are the products?
Which statement is supported by the notes regarding osmolality testing?
Transferrin formula
What is the standard tool used to assess random error in determination?
Which term describes the ability of a substance to dissociate in water?
Which is the most potent male androgen?
What is the most common anterior pituitary gland tumor?
Which electrolytes are involved in blood coagulation?
Which Fredrickson Type corresponds to Familial chylomicronemia (LPL deficiency)?
Which urinary metabolite of cortisol is detected using the Porter-Silber Method with 2,4-DNPH and yields a positive yellow reaction?
Which instrument is used for excitation by electromagnetic radiation?
In the chemical method, which step uses Bloom's reagent for extraction?
What is the typical angle used to detect scattered light in nephelometry?
What are the phases of subacute thyroiditis in order?
Hers disease is due to deficiency of which enzyme?
Which compound is the most abundant non-protein nitrogen (NPN) substance?
Mercury exposure is classically associated with Pink disease.
In a standard curve used for quantitative analysis, what is plotted on the X axis and Y axis?
For whole blood, which approach can be used with slight modifications (pre-wetting first)?
Which of the following is also an indication for arterial puncture?
Mercury exposure routes include which of the following?
A positive difference corresponds to which directional shift?
In freezing point osmometers, the sample is typically cooled to approximately what temperature?
Which lipase assay uses colorimetric detection with glycerol kinase and peroxidase?
The half-life of delta bilirubin is approximately how long?
Which condition shows decreased radioactive iodine uptake (RAIU) compared with other hyperthyroid conditions?
Which pair of agents is associated with hypokalemia due to intracellular potassium shift by increasing Na+/K+ ATPase activity?
Which technique is typically categorized as potentiometry?
What is the maximum coefficient of variation allowed for LDL-C measurements under NCEP guidelines?
For metanephrine testing to screen pheochromocytoma, which result is preferred?
In the diaphorase method for enzymatic glucose measurement, the colorimetric product is which color?
Which CK isoenzyme is the mitochondrial form?
HDL precipitation requires triglyceride levels to be below what value for efficiency?
What is the primary action of atrial natriuretic peptide on sodium?
In indirect calculation of LDL-C, which set of values is required?
What is the reference method for measuring non-protein nitrogen (NPN) in clinical chemistry?
What is the defining feature of polyclonal gammopathy on electrophoresis?
Which is the most abundant prehormone of T3?
Which method for glucose measurement uses hexokinase?
CK-BB is elevated in which condition according to the material?
Which ABG analytes are directly measured?
What is the absorbance maximum for the Evelyn-Malloy method?
Osmolarity is expressed in which units?
Which specimen uses EDTA among the listed items?
Hyponatremia due to increased water retention is commonly associated with which condition?
What is the FT3 reference range for females?
What is the method used for sweat chloride testing?
The CDC method for HDL-C includes three processes: Ultracentrifugation, precipitation by heparin-manganese, and which method?
The syringe plunger contains trace elements due to the material; which elements are present?
According to the rule of normality and molarity, which relation holds?
Elevated gamma-glutamyl transferase (GGT) is most associated with diseases of which organ?
Which option is outside the cytocentrifuge speed range of 200-1000 rpm?
Which analytical technique involves fragmentation and ionization of molecules for analysis?
TBPA stands for which of the following in the context of thyroxine transport?
Triglycerides require fasting for how long to ensure accurate measurement?
Equivalent weight is calculated as
Primary bile acids are which?
Which Aldolase isoenzyme is predominantly found in skeletal muscle?
What is the rule of CV acceptability in method validation?
Pink disease is associated with exposure to which metal?
Kernicterus risk is associated with bilirubin levels exceeding what value?
Subclinical hypothyroidism is best described by which pattern of TSH and FT4/TT3/TT4?
Bronze diabetes is associated with which condition?
Which protein is also known as orosomucoid?
Which method is the reference method for ethanol measurement?
Normal arterial pO2 range is:
Which paracrine regulator of insulin and glucagon is produced by delta cells of the pancreas?
In the Porter-Silber test for hydroxycorticosteroids, what color is produced when DNPH is used?
In insulinoma, the expected lab pattern is insulin high, proinsulin high, C-peptide high, and B-hydroxybutyric acid low.
In the colorimetric chemical method, the S reagent produces what color product?
After obtaining the T3U value, what is the next test that can be performed?
In cholesterol transformation, which form is considered transformable cholesterol?
In the high-dose dexamethasone suppression test, which pattern best distinguishes Cushing's disease from ectopic ACTH production?
Which test detects early renal complications in diabetes?
Which statement correctly defines Negative Predictive Value?
Pseudohyponatremia is a laboratory artifact related to which measurement method?
Which plastic is used for cryogenic purposes such as pipet tips and test tubes?
Night blindness is associated with deficiency of which vitamin?
Which biomarker list is associated with Alzheimer's disease?
1 mole NaCl equals how many osmoles when dissolved in water?
Compared to a weak acid, a strong acid has what pKa value?
For compliant diabetes patients, HbA1c should be tested how often?
Which methods are used to measure sodium in the laboratory?
Which enzyme pattern is associated with hepatobiliary (cholestatic) injury?
Elevated 11-deoxycorticosterone (11-DOC) is characteristic of deficiency of which enzyme in congenital adrenal hyperplasia?
Which of the following trisomies is NOT among those associated with decreased AFP?
In acute diarrhea, sodium is typically:
Which group of risk factors promotes atherosclerosis?
Which protein transports retinol (Vitamin A) in the blood?
Which hypothalamic releasing hormone stimulates growth hormone release from the anterior pituitary?
Under CLIA, non-waived quantitative tests require how many control levels per day?
Which biomarker is not an enzyme but rises earlier than CK-MB in AMI?
Which buffer is used for acidic conditions in electrophoresis?
In a standard diagnostic 2x2 table, the Positive and Negative rows refer to which concept?
Which is the reference method for amylase determination?
What type of centrifuge head is used for microhematocrit tubes?
In fluorometry, what is the typical angle between the excitation and emission monochromators?
Which components are used to calculate calculated osmolality?
Which metric is defined as the probability that a positive test result is actually a true positive?
Which protein has the highest concentration in the alpha-1 band during electrophoresis?
Which LDL-C determination method is a direct homogeneous assay that uses detergents?
Which glassware is known for high thermal resistance due to its borosilicate composition?
What are the two lights described in fluorometers?
What term describes the total range of wavelengths transmitted between two points?
Electrophoresis is affected by which factors?
CFU/mL stands for what?
Which analyte is commonly protected from light during storage or handling?
Which lipoprotein is prothrombotic and homologous to plasminogen due to its Apo B-100?
What is used as the screening test for growth hormone excess?
Which LD isoenzyme is cold-labile?
Which biomarker serves as an early predictor of acute kidney injury?
What is a key difference between molality and molarity?
Each 1% increase in HbA1c corresponds to an approximate rise in plasma glucose of how many mg/dL?
In primary hyperaldosteronism, a plasma aldosterone to plasma renin ratio diagnostic threshold is greater than what value?
Which type of glass is the most inexpensive?
Which signaling mechanism involves the hormone remaining bound to the adjacent target cell?
Among lipoproteins, which has the highest cholesterol content?
Indirect estimation of the free T4 in the blood is known as which index?
Which protein remains negatively charged even in acidic pH?
Which two anterior pituitary hormones act as insulin antagonists?
What is the NCEP target for total cholesterol (TC) in mg/dL?
Which of the following is NOT listed as ionizing radiation?
Nonfasting lipid analysis is acceptable for two analytes. Which pair are these two?
Pompe disease is caused by deficiency of which enzyme?
Which hormone is primarily responsible for promoting glycolysis, cellular uptake, glycogenesis, and lipogenesis?
Normal arterial pCO2 range is:
Hashimoto's thyroiditis is associated with antibodies including anti-thyroglobulin, anti-TPO, and anti-microsomal antibodies. Which option lists these antibodies?
Panic values for bicarbonate (HCO3) are at which levels?
What is the most common cause of thyroid disease?
What is commonly used as the basis to identify a solute in GC/HPLC?
In the Oliver-Rosalki CK determination method, which reaction uses hexokinase and G6PD along with CK?
Which urinary metabolite is measured by the Zimmerman Method using dinitrobenzene and yields a purple color?
Blood gas analysis QC is performed with how many levels and how often?
What color indicates the endpoint in the described precipitation/dye separation method?
Lipase levels in acute pancreatitis typically peak at about which time after onset?
Elevated AFP in maternal serum screening is most commonly associated with which condition?
Which method is used to separate bound T4 from its carrier?
What fraction of extracellular fluid is interstitial?
In the CPC-based calcium dye-binding assay, which additive prevents magnesium interference?
Which method is preferred for HbA1c determination?
Which carcinoplacental alkaline phosphatase isoenzyme is inhibited by phenylalanine?
Which of the following describes the four main classes of antiarrhythmic drugs?
In the Jaffe method, the kinetic improvement involves measuring absorbance at which?
Which test is primarily used for the diagnosis of diabetes?
The metabolic product marker for critical medical conditions is lactate above what value?
Which condition is explicitly described as salt-losing nephropathy contributing to hyponatremia?
If early screening in pregnancy is negative for GDM, when is glucose testing repeated?
For therapeutic drug monitoring, which methods are used for screening and confirmatory testing?
Which statement about random errors is true?
In Beer's Law A = a b c, which statement is correct?
In linear regression, the slope corresponds to which type of error?
When pH is not directly measured, which method is commonly used to estimate pH in buffer systems?
Beta-gamma bridging only on electrophoresis is most associated with which plasma component?
Which calcium-dye yields a violet color in the dye-binding approach?
Which accelerator is used in the Evelyn-Malloy method?
Which type of error affects precision?
What is the product formed in the Fiske Subbarow phosphate assay?
In a premenopausal woman, which estrogen is predominantly produced?
In a Lineweaver–Burk plot, a competitive inhibitor shows which change in Vmax and Km?
Which of the following is a ketose?
An oxytocin-producing tumor has been associated with which lung carcinoma type?
Which test differentiates neurogenic DI from nephrogenic DI?
In the description of chloride balance notation, what is listed as the 'Counter' ion?
Free PSA pattern relative to BPH and PC?
Which cell type secretes LH and FSH?
Which method is used to determine total protein concentration using dye binding?
Which acids are graded as 4 (Severe) in the laboratory severity scale?
The SI prefix for 10^18 is which of the following?
Which mineral acts as a cofactor for more than 300 enzymes?
Which markers are used to monitor breast cancer therapy?
In polarographic glucose oxidase assay, to prevent reformation of oxygen from hydrogen peroxide, which substances are added?
A monoclonal gammopathy curve on electrophoresis is characteristic of which disease?
Which equation expresses absorbance in terms of percent transmittance?
Which proliferation signal inhibitor inhibits dihydroorotate dehydrogenase?
Which option represents measures of central tendency?
Which statement best describes Borosilicate, Aluminosilicate, and High Silica glass in laboratory use?
What is measured by a pCO2 electrode as CO2 is present in the sample?
Partial immersion calibration pertains to which equipment?
Level of triglycerides that causes pancreatitis?
Which biomarker is commonly used to predict prognosis in AKI and is listed as an early predictor?
Which range defines Borderline High triglycerides?
In ethanol impairment, what is the second stage?
A patient specimen shows increased pCO2, decreased pO2, and decreased pH. This pattern is most consistent with:
Which instrument is typically used with colorimetric copper reduction methods such as Folin-Wu?
In flame photometry, which color corresponds to lithium emission?
Which test is associated with serotonin in the protocol?
Which biomarker is commonly used as an index of overall renal function?
The amylase:creatinine clearance ratio (SCUA) is calculated as which formula?
Storing ALP at 4°C has what effect on measured activity?
Which single enzyme is commonly used as a marker of hepatic injury?
In the Reitman Frankel transaminase assay, which reagent is used to form hydrazones?
GDM is screened during which gestational window?
ApoA4 main distribution and function?
Which enzyme pattern is associated with hepatocellular liver injury?
Which enzyme is not typically used as a secondary marker for obstructive jaundice?
Ostwald Folin transfer pipets are described as having which characteristic?
Which buffer is used specifically for the Bowers-McComb alkaline phosphatase method?
Which immunoassay type is homogeneous and relies on enzyme activity proportional to the analyte concentration?
Which support is traditionally used in paper chromatography?
Heparinized plasma cannot be used in which two assays?
In Menke's disease, copper levels are low due to inability to absorb copper, resulting in ceruloplasmin deficiency.
Which statement best describes Wilson's disease in terms of copper metabolism and ceruloplasmin?
Which compound is the other antiglycolytic agent besides sodium fluoride?
Which genes are considered indicators of hereditary cancer susceptibility in breast cancer risk assessment?
In the phosphate colorimetric assay, the reduced phosphomolybdate yields which color?
How do osmolarity and osmolality differ in their denominators?
Which of the following is a cause of high anion gap metabolic acidosis due to unmeasured anions?
Which method measures turbidity by blocking transmitted light?
Inhibin A provides feedback to inhibit which anterior pituitary hormone?
Which metabolite is produced by anaerobic glycolysis?
Absorbance formula as given?
Which hormones characterize the first, second, and third trimesters, respectively?
Which item is described as the most basic pipet?
Which option is NOT a method of amylase determination?
Which formula defines Negative Predictive Value?
Which hormone is higher in the late afternoon/PM due to diurnal variation?
Post-prandial ADA glucose goal is below what value?
In immunoassay instrumentation, which pairing correctly matches the detector type with the instrument commonly used to read it?
Which is described as the second vital buffer in the blood, acting as the principal buffer of red blood cells?
Increasing frequency of outliers in a data set is most closely associated with which statistical concept?
Normal range for serum osmolality is?
What is the standard deviation index (z score) formula used in the lab?
Hypermagnesemia can result from which condition?
Which lipoprotein has endogenous triglycerides as its major component?
What is the alternative for BUN enzymatic tests as sodium fluoride inhibits urease?
In pregnancy, beta-hCG reaches its peak around which week?
Which HDL-C determination method is considered the gold standard?
Sweat chloride analysis can be quantified by which two methods?
Which method is the method of choice for continuous monitoring of ACP?
Which of the following is NOT one of the three basic separation techniques?
Which posture change is associated with hemodilution?
Which statement correctly matches the metabolic actions of epinephrine and cortisol?
What is the ideal measurement time after collection for chemistry assays?
Cadmium exposure is associated with damage to which alveolar cells?
Which nondestructive method is used for determining organic compounds in lipoproteins, compared with destructive MS?
Which electrode is commonly used as a reference electrode in potentiometry?
Which analyte increases in the supine posture due to fluid shifts?
In laboratory workflow, which phase includes test selection and physician identification?
What is the bone crystal name in mineralized bone?
ACTH has which metabolic effects?
Which of the following is a B2 hepatic disease?
Which androgen is considered the most biologically active?
In the 1-step GDM diagnostic method using a 75 g load, what are the thresholds for fasting, 1-hour, and 2-hour glucose?
Which condition commonly causes secondary hyperparathyroidism?
Which trio of electrolytes is listed for Use no Water?
Whipple's triad of hypoglycemia includes which components?
Which of the following is an example of a centrifugal analyzer?
The solubility of a protein is lowest at its isoelectric point.
What is the free fraction percentage of T4 in plasma?
Which antigens are referred to as oncofetal antigens?
Which of the following is listed as an amphetamine-like substance?
In drug of abuse testing, which pairing is used for screening and confirmation?
Which drug is used to treat hyperuricemia by inhibiting xanthine oxidase?
Type 3c diabetes involves loss of pancreatic polypeptides.
What is the main action of oxytocin?
Which of the following are recognized contributors to potassium loss (LESS K)?
In slight hemolysis, which enzyme activity is most affected?
Best HUS marker since it is not an APR
What BAC defines legal intoxication limit?
In first-order enzyme kinetics, which statement is correct about limiting components?
Which pipet is described as the most used transfer pipet in the laboratory?
In Lean's application to clinical settings, 'Shorter STAT' refers to a desire to achieve what outcome?
Which organ primarily regulates extracellular potassium concentration?
Which tumor marker is associated with Lewis antigen status?
Which condition presents with elevated T3 but normal T4 (T3 thyrotoxicosis)?
For every 1°C increase in temperature, the multiplying factor for pO2 is:
Which statement identifies the least effective compensation for metabolic alkalosis?
Which condition is a water balance-related cause of hyponatremia, including SIADH?
In Step 1 of the two-step GDM screening, what 1-hour plasma glucose threshold prompts proceeding to Step 2?
In alkaline electrophoresis, proteins migrate toward which electrode?
Which vitamin is notably sensitive to light and should be protected from light during handling?
Which hormone is produced by the pineal gland?
In the presence of a competitive inhibitor, adding substrate will?
According to the material, which of the following is listed as a polar phospholipid?
Hyperprogesteronemia is associated with which menstrual outcome?
What is the most common cause of a high osmolal gap in clinical samples?
In a standard diagnostic 2x2 table, what do the terms True Positives and False Positives refer to?
A flipped LD1/LD2 ratio occurs in which scenario?
Lipase elevation in pancreatitis remains high for about how long before normalization?
Which drug requires whole blood for monitoring?
Which medication can cause hyperkalemia by decreasing renal potassium excretion?
What is the reference range for serum T4 in females?
What is the relationship between Thyroid Hormone Binding Ratio and Thyroxine-Binding Globulin?
Which marker best reflects hepatic synthetic function?
Which enzyme is the best marker for alcoholism?
Which of the following is an action of vitamin D?
Which instrument is used for the colorimetric enzymatic cholesterol assay?
Which are the metabolic functions attributed to Thyroxine in metabolism?
What is the reported toxic daily dose of lead?
Which method is typically used for calcium determination by titration?
Which cell type secretes ACTH?
In flame photometry, which color corresponds to calcium emission?
Amiodarone is classified as which type of antiarrhythmic?
According to the data, what is the approximate peak time window for Troponin I after myocardial injury?
What is the major cause of a shift in assay results?
Which placental hormone is primarily produced in the first trimester?
Which formula should be used to estimate osmolality when Na, Glucose, and BUN are expressed in mmol/L?
Which dye is used in calcium dye-binding method besides CPC?
What is the normal anion gap range when potassium is included?
Given magnesium’s role as a cofactor for over 300 enzymes, which statement best describes its impact?
Which body fluid does not reflect the same glucose concentration as blood?
Which protein is the primary carrier of retinol (Vitamin A) in serum?
What are the products of the initial reaction when beta-D-glucose is oxidized by glucose oxidase?
Which enzyme category uses ATP in its reaction?
Which two proteins serve as markers for CSF?
In Step 2 of the 2-step GDM test, how many of the four time-point thresholds must be exceeded to diagnose GDM?
Normal anion gap is influenced by which serum constituent according to the material?
What does HPLC stand for?
Which cell type is primarily responsible for the liver's metabolic and synthetic functions?
Cholesterol is described as a secondary test for two functions; which results are correct?
Which combination represents the 4Fs risk factors for liver disorders?
Which abnormal lipoprotein is described as sinking prebetalipoprotein?
Which chemical inhibitor inhibits Placental, Intestinal, Regan, and Nagao isoenzymes?
Which radioisotope is most commonly used in gamma counting and what is its approximate half-life?
In venous access procedures using transillumination, the distance to the vein is typically about how many inches?
In PCOS laboratory assessment, which parameter most directly reflects circulating free androgen activity?
Why have chemical copper reduction methods largely fallen out of use in glucose measurement?
Leucovorin rescue is used to rescue host cells when methotrexate is used.
Which sequence correctly describes the four steps of Beta Quantification?
CK-BB is primarily associated with which tissue type?
Which ion is listed as an inorganic anion activator (cofactor)?
In Homocystinuria, deficiency of which enzyme?
Which MS approach uses isotope dilution to quantify nonprotein nitrogens?
For a pH electrode, which is a valid option for the reference electrode tip?
In normal serum, what percentage of calcium is ionized?
Lp(a) density is similar to which lipoprotein?
Which material is used as the membrane for the sodium-selective ion electrode?
Oxyhemoglobin is corrected by determining its absorbance at which wavelength?
Which statement best describes autoantibody association in type 1 diabetes?
What instrument converts electrophoretic separation into quantitative data?
What is the formula for retention factor in chromatography?
Hemolysis can cause falsely elevated potassium in a sample because:
Niacin deficiency results in Pellagra. Which of the following best describes Pellagra?
Which type of luminescence is produced by biological luciferin-luciferase systems?
Mild elevation is defined as which range of ULN multiples?
In flame photometry, which color corresponds to copper emission?
Which pattern best describes primary hyperthyroidism in terms of TSH, FT4, TT3/TT4, and T3 uptake?
Which ALP isoenzyme resists heating at 65°C for 30 minutes?
Which MS technique is used for nonvolatile drugs?
Indirect calculation of LDL-C becomes inaccurate when TAG exceeds which value?
Which of the following is included as a measured analyte in a Basic Metabolic Panel?
What is the current reference method for triglycerides?
What is the key rationale for using a 2-hour OGTT in diabetes screening?
What is the listed critical range for sodium?
In the enzymatic method for non-protein nitrogen, most components are measured by a decrease in absorbance at which wavelength?
Which element has an atomic weight approximately 36?
The Kjeldahl method estimates protein content by measuring which element?
Which of the following is a correct statement about automatic micropipettors?
Which elements are classic examples of water-reactive chemicals?
Surface immersion calibration applies to which equipment?
An alpha-1 flat curve on electrophoresis is associated with which condition?
Elevation of alkaline phosphatase in bone tumors is typically how many times ULN?
Which of the following is NOT considered a DOWNTIME waste?
During pregnancy, which estrogen is primarily produced as a joint effort of mother and fetus, with fetal DHEAS needed by the placenta?
Which infection decreases CRP?
Which statistic is used to confirm precision?
Which chromatography form uses a stationary phase in a column?
Which is an acute complication of Type 1 diabetes mellitus?
Polarography and amperometry differ in that polarography measures current at which condition?
Albumin concentration is commonly measured by which dye-binding method?
AST and ALT belong to which category in liver function testing?
Which of the following is NOT listed as one of the two most common interferences in hexokinase glucose measurement?
Which pairing correctly matches triglyceride appearance with approximate level?
What is the recommended fasting duration for triglycerides and lipoproteins?
Tangier disease is associated with ABCA1 mutation and very low HDL. Which condition is this?
Which copper reduction method is Benedict's variant that uses stabilizers such as citrate or tartrate?
When a pH value is not given, which measurements are used to determine acidosis or alkalosis?
Which detector is commonly used in GC/HPLC?
Peak plasma concentration timing for digoxin after oral administration is typically about how many hours?
What is the most common visible light source?
Methotrexate is an antineoplastic agent that destroys thymine.
Procalcitonin is increased in bacterial infection within which time frame?
The expression for osmotic concentration relative to a reference is called?
Atomic absorption spectroscopy (AAS) features which of the following?
What color does the oxidized chromogen quinoneimine impart in Trinder-type assays?
HbA1c diagnostic criterion requires the value to be met on how many occasions?
Which sequence correctly orders reagent grades from purest to least pure?
What is the standard technique for pipetting aqueous solutions?
Which medium is used for charge-based separation in electrophoresis?
Intracellularly, which LD isoenzyme is more abundant?
Rank the ALP isoenzymes by heat stability from most to least stable.
Which chemical inhibitor is specific for the Bone isoenzyme?
Which enzyme marker is most commonly used to indicate hepatobiliary obstruction?
In hyperglycemia, the measured serum sodium concentration decreases by approximately how much for every 100 mg/dL increase in plasma glucose?
Which method uses UV-spectrophotometry for transaminase determination?
Which metric is defined as TP divided by (TP plus FN)?
A total cholesterol value of 230 mg/dL falls into which category?
Inverted A:G ratio is significant in which condition?
Which thyroid cells produce T3 and T4?
Which of the following is listed as an additional hypernatremia cause?
In flame photometry, which color corresponds to sodium emission?
Coenzymes that are tightly bound to the enzyme are called?
Which lipase determination method measures the rate of clearing by turbidity?
In electrophoresis, B-VLDL travels with which lipoprotein?
Which element has an atomic weight of about 40?
In this material, the F-test is defined as the ratio of which two statistics?
CNS stimulants vs depressants: which pairing is correct?
In flame photometry, which color corresponds to potassium emission?
Which mnemonic is associated with the random error concept?
When a standard curve has good linearity, what does y represent?
Niacin deficiency presents with Pellagra. Which vitamin is Niacin?
Which glass type is specifically designed to protect samples from light while providing reasonable thermal stability?
Criggler-Najjar Type 1 is characterized by which UDPGT deficiency?
Hypernatremia associated with urine osmolality less than 300 mOsm/kg is most consistent with which condition?
Fuller's Earth adsorbent is composed of which silicate?
Which accelerator is used in the Jendrassik Groff method?
Which of the following is a calcineurin inhibitor?
A routine lipid profile consists of which four components?
Which of the following is NOT a core component of lipoproteins?
In Kjeldahl nitrogen determination, which two reagents are essential for the digestion step?
Whole blood glucose concentration is lower than plasma by what percent?
In the direct pathway of HDL returning cholesterol to the liver, which receptor mediates uptake of cholesteryl esters on hepatocytes?
In a pO2 sensor, what are the correct materials for the cathode and anode?
What is the desirable LDL:HDL ratio?
The relationship between cholesterolemia and thyroid function is generally described as:
Which plastic is used for graduated cylinders and centrifuge tubes?
Which two methods are used for transaminase determination?
Dopamine, acting as a prolactin-inhibiting factor, inhibits the release of which hormone?
What is the main difference between horizontal and fixed-angle centrifuge rotors?
In atomic absorption spectroscopy, which categories of interference are recognized?
In the AST determination using the MDH step, which enzyme is used?
Which of the following is a laboratory method used to measure magnesium?
Which set of reagents correctly lists all reagents used in the Biuret method?
Which stimulant is commonly used to treat narcolepsy?
What is the active metabolite of procainamide?
Which enzyme is commonly elevated in acute hepatitis?
Plastic tubing is commonly made from which polymer?
Which Fredrickson Type corresponds to Familial Dysbetalipoproteinemia (IDL, B-VLDL)?
Fructosamine measurement is unreliable in hypoalbuminemia when albumin is at or below what level (in g/dL)?
What is the normal RAIU uptake at 24 hours?
Which protein is the primary carrier for basic drugs in plasma?
Which blank measures the absorbance of the sample?
Which group of antibiotics is listed?
Enzyme inactivation tends to occur at which temperature range?
Type 1b is Fulminant Type 1 Diabetes, characterized by no autoantibodies.
Which protein binds PSA and is increased in Alzheimer's disease?
Which lyase is clinically significant?
What type of study is used to verify the accuracy of a new analytical method against a reference method?
Which test assesses variability between two groups to evaluate precision?
Radio waves have wavelengths greater than 1 centimeter.
Which is the most potent estrogen?
Deficiency of alpha-1 antitrypsin is associated with mutation in which gene?
A buffer is a mixture of which components?
Which group of elements has approximate atomic weights of 10, 12, 14, 16, and 18?
Poppy plants are the natural source of which class of abused drugs?
Which two instruments are used to quantify by precipitation of immune complexes?
Which dye-binding reagent is used for total protein measurement?
Which element is considered a glucose tolerance factor in type 2 diabetes mellitus?
Tarui disease is due to deficiency of which enzyme?
Estimated total blood volume for a 70 kg adult is approximately?
Amylase normalization in acute pancreatitis occurs typically within which time frame?
Prostaglandins are derived from which parent molecule?
Which form of vitamin D is considered inactive?
Which adrenal cortex zone primarily secretes cortisol?
What term describes the drug concentration range between the minimum effective concentration and the minimum toxic concentration?
Which of the following are optical methods for protein measurement?
In the triple marker screen, which pattern is characteristic of Trisomy 21?
What is the relationship between triglyceride levels and thyroidism?
Potassium concentration is approximately how many times higher inside cells than in extracellular fluid?
What is the most common point-of-care testing (POCT)?
Which ratio is used to test for patency of the liver?
Which two analgesics listed do not require therapeutic drug monitoring?
Which condition is NOT associated with elevated ammonia levels?
Which buffer is considered the principal buffer of intracellular fluids?
Electroendosmosis causes the gamma globulin band to migrate toward which electrode during electrophoresis?
According to the critical values list, what is the critical glucose range?
Absorbance accuracy in spectrophotometry is checked using which combination?
Clark-Collip oxalic acid precipitation is used to precipitate calcium with which reagent?
How long can serum be stored at room temperature before analysis?
Alkaline phosphatase (ALP) optimum pH is typically around:
The Renal Panel is BMP-like but with which specific changes?
What happens to glucose concentration if a serum sample is stored at room temperature?
CK is a _____ (protein unit).
Which enzyme tends to rise earliest in pancreatitis?
GDM converts to DM within 10 years in approximately what percent?
Which laboratory parameter most directly indicates decreased hepatic synthetic function in cirrhosis?
Panic pO2 value is at or below which threshold?
What is the recommended lancet length for newborns?
Which lab pattern describes secondary hyperthyroidism (all values elevated)?
Dementia associated with dialysis is linked to which metal?
What is the most important clinical application of electrophoresis?
Which of the following specimens is preferred for osmolality measurements?
In spectrophotometry, what is the purpose of a reagent blank?
Which thyroid hormone is considered the inactive form?
Delta bilirubin with black granules (lipofuscin) is characteristic of which disorder?
Which statements best describe two markers for congestive heart failure used clinically?
Which parameter represents proportional systematic error?
The Renal Panel is BMP-like but with which changes?
Which molecule acts as the acetyl donor entering the Krebs cycle?
What is the approximate half-life of cocaine?
Which test is used as a confirmatory test for adrenal insufficiency?
During the 2-hour OGTT, how many blood draws are typically performed?
Among the diurnal variation list, which hormone is highest in the morning?
ApoA2 main distribution and function?
Which term describes the migration of small ions during electrophoresis?
In enzymatic creatinine determination, the initial reaction with creatininase produces which compound?
Which coenzyme is required for AST and ALT transaminase reactions?
Venous blood glucose is typically how much lower than capillary or arterial blood?
Electrophoretic mobility: which lipoprotein shows alpha mobility?
What is the normal serum osmolality range (in mOsm/kg)?
A CEA value greater than what threshold is typically associated with malignancy?
Which of the following are two actions of human placental lactogen (hPL)?
In a Lineweaver–Burk plot, a non-competitive inhibitor shows which change in Vmax and Km?
What is the reference range for serum amylase?
How many observations are required when calculating the standard deviation in the quality control context described?
Which factor can cause a false positive urine bhCG result?
Which is a gamma globulin protein?
Which enzyme is NOT part of the enzymatic cholesterol method?
Which of the following is considered the best single criterion for diagnosing diabetes by ADA?
Which colorimetric method is used to detect peptide bonds in proteins?
Which enzyme is a transferase used as a marker for liver disease?
Physical properties that depend on relative concentration but not identity are called?
Which gas is NOT listed as a mobile phase in the source material for gas chromatography?
HbA1c level that indicates poor glycemic control is greater than what percent?
Which regulator is released in response to increased plasma osmolality and acts on the kidneys to conserve water?
Which technique separates proteins by migration in a pH gradient?
Compared with serum or plasma, whole blood glucose is typically lower by about what percentage?
Which molecule is used as the membrane for the potassium-selective ion electrode?
What is the CFU/mL threshold for Type 1 reagent water?
Which glass releases alkali as described in the material?
If the hydrogen ion concentration [H+] is 1 x 10^-3 M, what is the pH?
Which of the following is NOT a type of luminescence listed in the material?
Which substance is most commonly abused worldwide?
LpX is associated with deficiency of which enzyme?
Which enzyme reduces oxaloacetate to malate using NADH in the pathway?
Which Aldolase isoenzyme is found mainly in white blood cells, liver, and kidney?
Positive displacement micropipettors are described as using which configuration?
In an air displacement micropipettor, the tip is typically used with which piston configuration?
Which lipoprotein has the lowest triglyceride content?
In the Ferric Reduction method, what are the colors of the reagents before and after reaction with glucose?
Which protein is an example of a quaternary structure?
Fluorometer sensitivity is how many times higher than that of a spectrophotometer?
Among lipoproteins, which carries the most triglycerides?
Vancomycin administration may cause which syndrome?
Which condition is typically associated with elevated T3 and T4?
For every 1°C increase in temperature, the multiplying factor for pCO2 is:
Which test is used to confirm hypoglycemia in the diagnostic workup?
Subclinical hyperthyroidism is best described by which pattern of TSH and FT4/TT3/TT4?
Prolonged storage of a specimen tends to cause which primary change?
Renal threshold for sodium excretion is typically between which values?
Which test is used to assess stray light in spectrophotometers?
If the pH of a solution is higher than a protein's isoelectric point, the protein will carry what net charge?
Which of the following is a mineral electrolyte commonly measured in clinical chemistry?
In refractometry, how much sample is required?
Which mnemonic stands for 'Sodium in, potassium out'?
Severe diarrhea is associated with chloride levels that are:
If data are skewed, which measure of central tendency should be used?
Which pattern best describes the immediate/acute-phase response on electrophoresis?
Increasing the concentration of heparin in an ABG sample tends to cause which combination of effects?
Pronounced elevation is defined as how many times ULN?
What color is produced by the Jaffe reaction when creatinine reacts with the Jaffe reagent?
What is the percentage distribution of beta-D-glucose and alpha-D-glucose reported in this material?
Which of the following is a measure of dispersion?
Density of B-VLDL is similar to which lipoprotein?
TD pipets are calibrated with which liquid?
Which method is used as the reference method for enzymatic glucose measurement because it does not use hexokinase?
The low-dose dexamethasone suppression test is used to distinguish Cushing's syndrome from which group?
What is the most common cause of secondary adrenal insufficiency?
LDX corresponds to an LD isoenzyme found in which tissue?
What are the three major electrolytes for osmolality (distinct from osmolarity)?
Which expression represents the FTI formula?
In advanced liver fibrosis where hepatocytes are largely destroyed, AST, ALT, and LD levels are typically:
In CLSI terminology, Type III water is used as Autoclave wash water.
In females, FSH primarily stimulates which processes?
Which combination of reagents is used in the Kjeldahl digestion step for protein analysis?
In the Wacker/Forward LD assay, which conversion occurs?
Elevated 17-hydroxyprogesterone is most characteristic of deficiency of which enzyme in congenital adrenal hyperplasia?
Magnesium concentration in red blood cells is approximately how many times higher than in plasma?
What is the stated exponent of the meter?
In a basal fasting state, which analyte is commonly measured to assess carbohydrate metabolism?
Which is described as the most important component of HDL?
Which plastic is used for alkaline storage?
The Albanese Lein colorimetric method is used to measure which analyte?
The nitrogen content of protein is approximately what percent?
What is the chief female androgen?
The most common cause of hyperbilirubinemia is
In the Hexokinase enzymatic glucose method, what activator is commonly used?
Which of the following is a line source?
Which drug is hepatotoxic?
For individuals aged 20-29, what is the High Risk cut-off for total cholesterol?
Which hormone is highest in the morning due to diurnal variation?
Dry excess anticoagulant effect leads to which change?
In the reference method described, what is the substrate used?
Which diagnostic test is used for ADH deficiency?
Which protein is an acute-phase reactant?
Type 1 diabetes mellitus is defined as IDDM with more than one autoantibody.
If a solution contains 3 equivalents of solute per liter, the normality is
All approaches to automation are capable of which function?
Severe burns are listed as a hyponatremia cause via which mechanism?
A monoclonal gammopathy curve on electrophoresis most strongly suggests which disease?
Bisalbuminemia and analbuminemia are inherited in which pattern?
Which chloride determination method uses coulometry-amperometry?
What is the critical total bilirubin value listed?
Which set represents hepatocellular injury markers?
NDML stands for neonatal diabetes mellitus.
What is the preferred specimen for most drug assays?
Type 3b diabetes involves defects in the exocrine pancreas.
Which systems regulate water reabsorption in the kidney?
Which of the following is NOT typically associated with persistent hyperglycemia?
In colligative property measurements, the freezing point changes by approximately how many degrees Celsius per osmole increase of solute?
Which antibody is most characteristic of Graves disease?
In linear regression, the y-intercept corresponds to which type of error?
Type I and Type II water are used as which type of water in CLSI terms?
In a calibration context, which statement best represents the relationship between unknown and standard samples?
Which of the following is NOT a hallucinogen?
Which instrument is used for the enzymatic ammonia determination?
Which enzyme is commonly elevated with skeletal muscle activity?
Elevated DHEA is associated with deficiency of which enzyme in congenital adrenal hyperplasia?
What is the free fraction percentage of T3 in plasma?
Which conditions can cause high plasma osmolality, contributing to hypernatremia?
Which substance is used as the substrate when performing amylase activity assays?
After refrigeration, which LD isoenzymes remain active?
In the context described, which parameter is the ion-selective electrode reading used to derive bicarbonate for the anion gap calculation?
Which complication is listed as the most common in phlebotomy?
Which two agents are listed as bronchodilators?
If blanking cannot be performed, which approach is used?
Xanthine oxidase catalyzes the conversion of purines into which compound?
SST and PST can cause decreases in which two drugs?
How is molarity defined?
What is another name for fluorometry?
Which test is used to assess long-term glycemic control?
In a thyroid follicle, where are the follicular cells located relative to the colloid?
Which technique is the gold standard for drug testing?
Which immunoassay for thyroxine testing is indirectly proportional?
Which drug is a second-generation antiepileptic that does not require therapeutic drug monitoring?
Which cell type secretes growth hormone?
Bicarbonate accounts for approximately what percentage of total CO2 in blood?
Which instrument is used to measure monovalent ions via photometric techniques?
Which two enzymes help distinguish bone from liver disease when ALP is increased?
Which hormone acts as a negative feedback signal to inhibit growth hormone secretion?
Which BAC range corresponds to death?
What is the electrophoresis order of ALP isoenzymes from most anodic to least anodic?
Which drug is classified as a long-acting barbiturate?
Which Fredrickson type carries the highest cardiac risk?
Normal BUN-to-creatinine ratio is typically within which range?
What is the typical fixed-angle range used in fixed-angle centrifuges?
Creatinine constitutes what percent of NPNs?
What is the most common source of loss of linearity in a spectrophotometer?
Nagao isoenzyme is associated with which cancer?
Which enzyme hydrolyzes triglycerides in circulating lipoproteins?
Which value represents the reference range for total bilirubin?
Which method among the listed calcium measurement approaches uses atomic absorption spectroscopy?
Hypernatremia caused by increased water loss can be due to which condition?
Myoglobin is a negative predictor of acute myocardial infarction within how many hours?
Which term describes proteins that contain a non-protein prosthetic group?
Hypernatremia caused by decreased water intake is seen in which groups?
Which statement correctly pairs primary hypergonadism with its typical cause?
Which of the following is a cause of a high osmolal gap?
In the correlation of results, which expression defines the rate with respect to antigen concentration?
What is the molecular weight of alpha-2 macroglobulin?
Which condition is described as a hyponatremia cause associated with hypoaldosteronism?
Molality is defined as
Which method is described as expensive and sensitive for urea determination?
Which cell type of the anterior pituitary gland secretes prolactin?
What term describes a uniform mixture of solute and solvent?
The most abundant lipids class, according to the material, is which?
Which hormones are said to perform gluconeogenesis and glycogenolysis?
Which amino acid is listed as the most abundant protein in the body and used in many processes?
In questions, a highly sensitive and specific method is referred to as which type of method?
In spill cleanup, what is the first step?
What is the standard glucose load for the 2-hour OGTT in adults?
Midnight salivary cortisol in primary hypercortisolism is typically what?
In the Fiske Subbarow phosphate assay, the UV measurement is performed at which wavelength?
In the equation y = mx + b, what does m denote?
Which of the following is an example of a TD pipette?
Which term describes minimal complexity of instrumentation?
Tolbutamide is administered by which route in this context?
Which lipoprotein is the most atherogenic?
Renal or post-renal azotemia is suggested by which pattern of BUN and creatinine?
Bronze diabetes is caused by deposition of which element?
Highest elevation of LD is observed in which condition?
Which markers are predominantly elevated in biliary obstruction?
What is the critical pH range listed in the blood gas critical values?
Parkinson's disease has been linked to exposure to which trace element?
Which reagent is used in the Zimmerman test for 17-ketosteroids?
In beta quantification, ultracentrifugation is used to remove which lipoproteins?
Which method is NOT used for apolipoprotein assays?
Is cholesterol an energy source?
An SDI value of 2.5 indicates poor performance.
Which of the following is NOT a protease inhibitor?
For absence (petit mal) seizures, which drug is preferred?
In separation techniques, electrophoresis separates primarily by which property?
After heating at 56°C for 10 minutes, what are the expected residual activities for bone and liver ALP?
Which of the following is NOT listed as an indication that calibration is needed?
Among proteins, which lipoprotein is most abundant?
Levels of control are described as which categories?
In the Modified Abell-Kendal method for serum cholesterol, what modification is used compared to the standard LB method?
Which of the following is used in the evaluation of pheochromocytoma?
Uric acid comprises what percent of non-protein nitrogen (NPN)?
Which of the following is not used in the evaluation of pheochromocytoma?
Bilirubin oxidase method measures decreased absorbance at which wavelength range?
Bioavailability is defined as the ratio of drug absorbed from the administered dose.
What is the reference method and substrate for ACP measurement?

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