Clinical Biochemist Certification (Specialization)

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Lab Test Academy

NHPC , Biochem Specialization

M.Sc Medical Biochemistry

Welcome to Our Mock Test for M.Sc Medical Biochemistry ! 🚀 A warm welcome to Lab Test Academy ! We're thrilled to guide you through this M.Sc Medical Biochemistry Mock Test experience.

1 / 100

Category: NHPC , Biochem Specialization

1. Which instrument is primarily used to detect chemiluminescence in the lab ?

a) Colorimeter

b) Luminometer

c) Spectrofluorometer

d) Centrifuge

2 / 100

Category: NHPC , Biochem Specialization

2. Which enzyme is responsible for the conjugation of bilirubin ?

a) β-Glucuronidase

b) UDP-glucuronyl transferase

c) Bilirubin oxidase

d) Biliverdin reductase

3 / 100

Category: NHPC , Biochem Specialization

3. Which of the following is the most common cause of Cushing’s syndrome ?

a) Pituitary adenoma

b) Adrenal hyperplasia

c) Overuse of corticosteroids

d) Ectopic adrenocorticotropic hormone (ACTH) production by tumors

4 / 100

Category: NHPC , Biochem Specialization

4. Which of the following will shift the O2 dissociation curve to the left ?

a) Anemia

b) Hyperthermia

c) Hypercapnia

d) Alkalosis

5 / 100

Category: NHPC , Biochem Specialization

5. Which statement regarding creatinine is true ?

a) Serum levels are elevated in early renal disease

b) High serum levels result from reduced glomerular filtration

c) Serum creatine has the same diagnostic utility as serum creatinine

d) Serum creatinine is a more sensitive measure of renal function than creatinine clearance

6 / 100

Category: NHPC , Biochem Specialization

6. Upon which principle is the biuret method based ?

a) The reaction of phenolic groups with CuIISO 4

b) Coordinate bonds between Cu +2 and carbonyl and imine groups of peptide bonds.

c) The protein error of indicator effect producing color when dyes bind protein

d) The reaction of phosphomolybdic acid with protein

7 / 100

Category: NHPC , Biochem Specialization

7. A serum sodium level of 142 mmol/L falls within which of the following reference ranges ?

a) 120–130 mmol/L

b) 135–145 mmol/L

c) 140–155 mmol/L

d) 130–140 mmol/L

8 / 100

Category: NHPC , Biochem Specialization

8. Which specimen is the sample of choice for lead screening ?

a) Whole blood

b) Hair

c) Serum

d) Urine

9 / 100

Category: NHPC , Biochem Specialization

9. The HMP shunt pathway primarily produces :

a) ATP and NADH

b) NADPH and ribose-5-phosphate

c) GTP and oxaloacetate

d) FADH₂ and citrate

10 / 100

Category: NHPC , Biochem Specialization

10. Which of the following is the primary mechanism for vasopressin (ADH) release ?

a) Hypovolemia

b) Hyperosmolar plasma

c) Renin release

d) Reduced renal blood flow

11 / 100

Category: NHPC , Biochem Specialization

11. The net ATP yield from anaerobic glycolysis per glucose molecule is :

a) 2 ATP

b) 4 ATP

c) 6 ATP

d) 8 ATP

12 / 100

Category: NHPC , Biochem Specialization

12. Ketoacidosis in diabetes occurs due to :

a) Lactate accumulation

b) Excessive acetyl-CoA → ketone bodies

c) Ethanol metabolism

d) Uric acid crystallization

13 / 100

Category: NHPC , Biochem Specialization

13. Urea is produced from :

a) The catabolism of proteins and amino acids

b) Oxidation of purines

c) Oxidation of pyrimidines

d) The breakdown of complex carbohydrates

14 / 100

Category: NHPC , Biochem Specialization

14. HbA1c reflects average blood glucose levels over :

a) 2-4 weeks

b) 8-10 weeks

c) 12-14 weeks

d) 20-22 weeks

15 / 100

Category: NHPC , Biochem Specialization

15. Which of the statements below about serum urea is true?

a) Levels are independent of diet

b) Urea is not reabsorbed by the renal tubules

c) High BUN levels can result from necrotic liver disease

d) BUN is elevated in prerenal as well as renal failure

16 / 100

Category: NHPC , Biochem Specialization

16. Total ATP from complete aerobic glucose oxidation is :

a) 30 ATP

b) 32 ATP

c) 36 ATP

d) 38 ATP

17 / 100

Category: NHPC , Biochem Specialization

17. A core advantage of laboratory automation is :

a) Complete elimination of human intervention

b) Enhanced throughput without proportional staff increase

c) Absolute error-free operation

d) Elimination of quality control requirements

18 / 100

Category: NHPC , Biochem Specialization

18. A 35-year-old female presents with joint stiffness. Lab results show low albumin and anemia. What is the most likely diagnosis ?

a) Systemic Lupus Erythematosus

b) Osteoarthritis

c) Rheumatoid Arthritis

d) Sjögren’s Syndrome

19 / 100

Category: NHPC , Biochem Specialization

19. A patient’s BUN is 60 mg/dL and serum creatinine is 3.0 mg/dL. These results suggest :

a) Laboratory error measuring BUN

b) Renal failure

c) Prerenal failure

d) Patient was not fasting

20 / 100

Category: NHPC , Biochem Specialization

20. Which enzyme deficiency causes lactose intolerance ?

a) Sucrase

b) Amylase

c) Lactase

d) Maltase

21 / 100

Category: NHPC , Biochem Specialization

21. Pyruvate dehydrogenase complex requires all EXCEPT :

a) TPP

b) Biotin

c) Lipoic acid

d) FAD

22 / 100

Category: NHPC , Biochem Specialization

22. Chronic alcohol consumption causes lactic acidosis by :

a) Inhibiting pyruvate carboxylase

b) Shifting pyruvate → lactate due to high NADH/NAD⁺ ratio

c) Promoting ketogenesis

d) Blocking TCA cycle enzymes

23 / 100

Category: NHPC , Biochem Specialization

23. Which support medium can be used to determine the molecular weight of a protein ?

a) Cellulose acetate

b) Polyacrylamide gel

c) Agar gel

d) Agarose gel

24 / 100

Category: NHPC , Biochem Specialization

24. Prolonged APTT not corrected by mixing studies suggests :

a) Hemophilia A

b) Factor XII deficiency

c) Lupus anticoagulant

d) Vitamin K deficiency

25 / 100

Category: NHPC , Biochem Specialization

25. Which type of cancer is associated with the highest level of AFP ?

a) Hepatoma

b) Ovarian cancer

c) Testicular cancer

d) Breast cancer

26 / 100

Category: NHPC , Biochem Specialization

26. Blood sample collection time for peak drug levels :

a) Varies with the drug, depending on its rate of absorption

b) Is independent of drug formulation

c) Is independent of the route of administration

d) Is 30 minutes after a bolus intravenous injection is completed

27 / 100

Category: NHPC , Biochem Specialization

27. Which compound is commonly used in chemiluminescent reactions in diagnostics ?

a) Luciferin

b) Hemoglobin

c) NADH

d) Bilirubin

28 / 100

Category: NHPC , Biochem Specialization

28. Hyperalbuminemia is caused by :

a) Dehydration syndromes

b) Liver disease

c) Burns

d) Gastroenteropathy

29 / 100

Category: NHPC , Biochem Specialization

29. The key regulatory enzyme in glycogenolysis is :

a) Glycogen synthase

b) Glycogen phosphorylase

c) Branching enzyme

d) Debranching enzyme

30 / 100

Category: NHPC , Biochem Specialization

30. A rising PSA level in a 65-year-old male post-prostatectomy suggests :

a) Benign prostatic hyperplasia

b) Prostatitis

c) Recurrent prostate cancer

d) Bladder cancer metastasis

31 / 100

Category: NHPC , Biochem Specialization

31. In acute MI, cardiac troponin rises detectably in serum within :

a) 1–2 hours

b) 4–6 hours

c) 12–24 hours

d) 48 hours

32 / 100

Category: NHPC , Biochem Specialization

32. In real-time PCR, what value is needed in order to determine the threshold ?

a) Background signal

b) Melt temperature

c) Maximum fluorescence

d) Threshold cycle

33 / 100

Category: NHPC , Biochem Specialization

33. Fluoride inhibits glycolysis by targeting which enzyme ?

a) Hexokinase

b) Phosphofructokinase

c) Enolase

d) Pyruvate kinase

34 / 100

Category: NHPC , Biochem Specialization

34. The Cori cycle involves interconversion between :

a) Glucose and glycogen

b) Lactate and glucose

c) Alanine and pyruvate

d) Glycerol and glucose

35 / 100

Category: NHPC , Biochem Specialization

35. Point-of-care-tests (POCTs) for whole-blood glucose monitoring are based mainly on the use of :

a) Glucose oxidase as the enzyme

b) Amperometric detection

c) Immunochromatography

d) Peroxidase coupling reactions

36 / 100

Category: NHPC , Biochem Specialization

36. Von Gierke's disease (Type I GSD) results from deficiency in :

a) Glucose-6-phosphatase

b) Glycogen phosphorylase

c) Debranching enzyme

d) Acid α-glucosidase

37 / 100

Category: NHPC , Biochem Specialization

37. The classic tetrad of nephrotic syndrome includes all EXCEPT :

a) Proteinuria

b) Hypoalbuminemia

c) Hematuria

d) Hypercholesterolemia

38 / 100

Category: NHPC , Biochem Specialization

38. Which cardiac biomarker rises earliest after myocardial infarction (MI) ?

a) CK-MB

b) LDH

c) Troponin T

d) Myoglobin

39 / 100

Category: NHPC , Biochem Specialization

39. Which of the following best represents the reference (normal) range for arterial pH?

a) 7.35–7.45

b) 7.42–7.52

c) 7.38–7.68

d) 6.85–7.56

40 / 100

Category: NHPC , Biochem Specialization

40. A urine protein:creatinine ratio of 5.6 indicates :

a) Normal excretion

b) Microalbuminuria

c) Nephrotic-range proteinuria

d) Tubular proteinuria

41 / 100

Category: NHPC , Biochem Specialization

41. Which of the following conditions is cause for rejecting an analytical run ?

a) Two consecutive controls greater than 2 s above or below the mean

b) Three consecutive controls greater than 1 s above the mean

c) Four controls steadily increasing in value but less than ±1 s from the mean

d) One control above +1 s and the other below –1 s from the mean

42 / 100

Category: NHPC , Biochem Specialization

42. Uric acid is derived from the :

a) Oxidation of proteins

b) Catabolism of purines

c) Oxidation of pyrimidines

d) Reduction of catecholamines

43 / 100

Category: NHPC , Biochem Specialization

43. Which of the following laboratory results is usually associated with cystic fibrosis ?

a) Sweat chloride greater than 60 mmol/L

b) Elevated serum sodium and chloride

c) Elevated fecal trypsin activity

d) Low glucose

44 / 100

Category: NHPC , Biochem Specialization

44. Urea concentration is calculated from the BUN by multiplying by a factor of :

a) 0.5

b) 2.14

c) 6.45

d) 14

45 / 100

Category: NHPC , Biochem Specialization

45. Hyperparathyroidism is most consistently associated with :

a) Hypocalcemia

b) Hypocalciuria

c) Hypophosphatemia

d) Metabolic alkalosis

46 / 100

Category: NHPC , Biochem Specialization

46. Which of the following conditions is associated with hypokalemia?

a) Addison’s disease

b) Hemolytic anemia

c) Digoxin intoxication

d) Alkalosis

47 / 100

Category: NHPC , Biochem Specialization

47. Which of the following is characteristic of type 1 diabetes mellitus?

a) Requires an oral glucose tolerance test for diagnosis

b) Is the most common form of diabetes mellitus

c) Usually occurs after age 40

d) Requires insulin replacement to prevent ketosis

48 / 100

Category: NHPC , Biochem Specialization

48. External Quality Control (EQC) programs primarily assess :

a) Intra-laboratory precision

b) Analytical accuracy through inter-laboratory comparison

c) Reagent stability

d) Sample transport time

49 / 100

Category: NHPC , Biochem Specialization

49. Which of the following plots is best for detecting all types of QC errors ?

a) Levy–Jennings

b) Tonks–Youden

c) Cusum

d) Linear regression

50 / 100

Category: NHPC , Biochem Specialization

50. Classic galactosemia is caused by deficiency in :

a) Galactokinase

b) UDP-galactose epimerase

c) Galactose-1-phosphate uridylyltransferase (GALT)

d) Lactose synthase

51 / 100

Category: NHPC , Biochem Specialization

51. Which of the following enzymes is activated by calcium ions ?

a) CK

b) Amylase

c) ALP

d) LD

52 / 100

Category: NHPC , Biochem Specialization

52. A diabetic patient presents with pH 7.20, HCO₃⁻ 10 mmol/L, anion gap 25 mmol/L, and positive serum ketones. The NEXT critical test is :

a) Serum lactate

b) Urine osmolality

c) Blood ethanol

d) Salicylate level

53 / 100

Category: NHPC , Biochem Specialization

53. Which of the following is the primary energy source for chemiluminescence ?

a) UV light

b) Heat energy

c) Chemical reaction

d) Frictional force

54 / 100

Category: NHPC , Biochem Specialization

54. What is a major advantage of chemiluminescent assays over photoluminescent assays ?

a) Higher background interference

b) Dependence on external light source

c) No need for excitation source

d) Requires time-resolved detection

55 / 100

Category: NHPC , Biochem Specialization

55. What is the primary clinical utility of measuring CEA ?

a) Diagnosis of liver cancer

b) Diagnosis of colorectal cancer

c) Screening for cancers of endodermal origin

d) Monitoring for recurrence of cancer

56 / 100

Category: NHPC , Biochem Specialization

56. Which enzyme deficiency is responsible for phenylketonuria (PKU) ?

a) Phenylalanine hydroxylase

b) Tyrosine transaminase

c) p-Hydroxyphenylpyruvic acid oxidase

d) Homogentisic acid oxidase

57 / 100

Category: NHPC , Biochem Specialization

57. Which of the following results falls within the diagnostic criteria for diabetes mellitus ?

a) Fasting plasma glucose of 120 mg/dL

b) Two-hour postprandial plasma glucose of 160 mg/dL

c) Two-hour plasma glucose of 180 mg/dL following a 75 g oral glucose challenge

d) Random plasma glucose of 250 mg/dL and presence of symptoms

58 / 100

Category: NHPC , Biochem Specialization

58. Hypoglycemia in alcoholism occurs due to :

a) Enhanced gluconeogenesis

b) Inhibition of glycogenolysis

c) NADH-mediated suppression of gluconeogenesis

d) Increased insulin secretion

59 / 100

Category: NHPC , Biochem Specialization

59. Identify the enzyme deficiency responsible for type 1 glycogen storage disease (von Gierke’s disease).

a) Glucose-6-phosphatase

b) Glycogen phosphorylase

c) Glycogen synthetase

d) β-Glucosidase

60 / 100

Category: NHPC , Biochem Specialization

60. In diabetes, cataract formation is linked to the polyol pathway due to :

a) Sorbitol-induced osmotic stress in the lens

b) Fructose-6-phosphate accumulation

c) NAD⁺ depletion

d) Reduced glutathione synthesis

61 / 100

Category: NHPC , Biochem Specialization

61. Which formula correctly describes the relationship between absorbance and %T ?

a) A = 2 – log %T

b) A = log 1/T

c) A = –log T

d) All of these options

62 / 100

Category: NHPC , Biochem Specialization

62. Which formula provides the best estimate of serum TIBC ?

a) Serum transferrin in mg/dL × 0.70 = TIBC (μg/dL)

b) Serum transferrin in mg/dL × 1.43 = TIBC (μg/dL)

c) Serum iron (μg/dL)/1.2 + 0.06 = TIBC (μg/dL)

d) Serum Fe (μg/dL) × 1.25 = TIBC (μg/dL)

63 / 100

Category: NHPC , Biochem Specialization

63. When sterilizing empty glassware like pipettes and beakers that are heat-stable and moisture-sensitive, the MOST appropriate equipment is a :

a) Water bath

b) Autoclave

c) Hot air oven

d) Incubator

64 / 100

Category: NHPC , Biochem Specialization

64. Which of the following conditions is associated with hypernatremia ?

a) Diabetes insipidus

b) Hypoaldosteronism

c) Burns

d) Diarrhea

65 / 100

Category: NHPC , Biochem Specialization

65. Which measurement principle is employed in a vapor pressure osmometer ?

a) Seebeck

b) Peltier

c) Hayden

d) Darlington

66 / 100

Category: NHPC

66. Which of the following hormones promotes hyperglycemia ?

a) Calcitonin

b) Growth hormone

c) Aldosterone

d) Renin

67 / 100

Category: NHPC , Biochem Specialization

67. Renal glycosuria is characterized by :

a) Hyperglycemia with glycosuria

b) Glycosuria despite normal blood glucose

c) Elevated renal threshold (>180 mg/dL)

d) Ketonuria

68 / 100

Category: NHPC , Biochem Specialization

68. In a suspected infectious mononucleosis (IM) case, which test helps confirm the diagnosis ?

a) Hemoglobin electrophoresis

b) Heterophile antibody test

c) Coombs test

d) ANA test

69 / 100

Category: NHPC , Biochem Specialization

69. Deficiency of which enzyme causes Essential Pentosuria ?

a) Glucose-6-phosphate dehydrogenase

b) Transketolase

c) Xylitol dehydrogenase

d) UDP-glucuronate decarboxylase

70 / 100

Category: NHPC , Biochem Specialization

70. Insulin's primary action on glycogen metabolism is to :

a) Activate glycogen phosphorylase

b) Inhibit glycogen synthase

c) Activate glycogen synthase via dephosphorylation

d) Promote cAMP production

71 / 100

Category: NHPC , Biochem Specialization

71. Which tumor marker is associated with cancer of the urinary bladder ?

a) CA-19-9

b) CA-72-4

c) Nuclear matrix protein

d) Cathepsin-D

72 / 100

Category: NHPC , Biochem Specialization

72. Which of the following biochemical processes is promoted by insulin ?

a) Glycogenolysis

b) Gluconeogenesis

c) Lipolysis

d) Uptake of glucose by cells

73 / 100

Category: NHPC , Biochem Specialization

73. Turbidimetry differs from nephelometry in that it measures :

a) Scattered light at 90°

b) Light transmitted through a reaction mixture

c) Fluorescence intensity

d) Electrical impedance

74 / 100

Category: NHPC , Biochem Specialization

74. Blood ammonia levels are usually measured in order to evaluate :

a) Renal failure

b) Acid–base status

c) Hepatic coma

d) Gastrointestinal malabsorption

75 / 100

Category: NHPC , Biochem Specialization

75. Which TCA cycle enzyme is inhibited by ATP ?

a) Citrate synthase

b) Aconitase

c) Isocitrate dehydrogenase

d) Succinate dehydrogenase

76 / 100

Category: NHPC , Biochem Specialization

76. Which of the following assays is recommended as a screening test for colorectal cancer in persons over 50 years old ?

a) CEA

b) AFP

c) Occult blood

d) Fecal trypsin

77 / 100

Category: NHPC , Biochem Specialization

77. For long-term (24-72 hour) incubation of cell cultures requiring a highly stable temperature (±0.1°C), 5% CO₂, and high humidity, the MOST suitable equipment is a:

a) Hot air oven

b) Standard incubator

c) CO₂ incubator

d) Water bath

78 / 100

Category: NHPC , Biochem Specialization

78. Which of the following is the best analyte to monitor for recurrence of ovarian cancer ?

a) CA-15-3

b) CA-19-9

c) CA-125

d) CEA

79 / 100

Category: NHPC , Biochem Specialization

79. Which of the following is associated with low serum iron and high total iron-binding capacity (TIBC)?

a) Iron deficiency anemia

b) Hepatitis

c) Nephrosis

d) Noniron deficiency anemias

80 / 100

Category: NHPC , Biochem Specialization

80. A lab measures total bilirubin by the Jendrassik–Grof bilirubin method with sample blanking. What would be the effect of moderate hemolysis on the test result ?

a) Falsely increased due to optical interference

b) Falsely increased due to release of bilirubin from RBCs

c) Falsely low due to inhibition of the diazo reaction by hemoglobin

d) No effect due to correction of positive interference by sample blanking

81 / 100

Category: NHPC , Biochem Specialization

81. A patient’s blood gas results are: pH = 7.50 P CO2 = 55 mm Hg HCO3– = 40 mmol/L , These results indicate :

a) Respiratory acidosis

b) Metabolic alkalosis

c) Respiratory alkalosis

d) Metabolic acidosis

82 / 100

Category: NHPC , Biochem Specialization

82. Select the most appropriate adult reference range for fasting blood glucose.

a) 40–105 mg/dL (2.22–5.82 mmol/L)

b) 60–140 mg/dL (3.33–7.77 mmol/L)

c) 65–99 mg/dL (3.61–5.50 mmol/L)

d) 75–150 mg/dL (4.16–8.32 mmol/L)

83 / 100

Category: NHPC , Biochem Specialization

83. Which condition is associated with the lowest percent saturation of transferrin ?

a) Hemochromatosis

b) Anemia of chronic infection

c) Iron deficiency anemia

d) Noniron deficiency anemia

84 / 100

Category: NHPC , Biochem Specialization

84. Electrophoresis is defined as the migration of charged particles under the influence of :

a) A magnetic field

b) A gravitational field

c) An electric field

d) A pH gradient

85 / 100

Category: NHPC , Biochem Specialization

85. Which of the following lab findings is typical in alcoholic liver disease ?

a) Low AST and ALT

b) AST > ALT

c) ALT > AST

d) Normal bilirubin

86 / 100

Category: NHPC , Biochem Specialization

86. The reference electrode in blood gas/electrolyte analyzers maintains a constant :

a) Temperature of 37°C

b) pH of 7.4

c) Electrical potential (756 mV)

d) Gas flow rate

87 / 100

Category: NHPC , Biochem Specialization

87. Bilirubin is transported from reticuloendothelial cells to the liver by :

a) Albumin

b) Bilirubin-binding globulin

c) Haptoglobin

d) Transferrin

88 / 100

Category: NHPC , Biochem Specialization

88. The onset of menopause is usually associated with what hormone changes ?

a) Decreased estrogen, testosterone, and androgens

b) Decreased estrogen, FSH, LH, and progesterone

c) Decreased estrogen and progesterone, and increased LH and FSH

d) Decreased estrogen and progesterone, normal LH and FSH

89 / 100

Category: NHPC , Biochem Specialization

89. Which of the following quality control (QC) rules would be broken 1 out of 20 times by chance alone ?

a) 12s

b) 22s

c) 13s

d) 14s

90 / 100

Category: NHPC , Biochem Specialization

90. What is a major benefit of Electrochemiluminescence Immunoassay (ECLIA) ?

a) Uses radioisotopes

b) Needs long incubation

c) Highly sensitive and rapid

d) Less stable labels

91 / 100

Category: NHPC , Biochem Specialization

91. Which statement regarding nephelometry is true ?

a) Nephelometry is less sensitive than absorption spectrophotometry

b) Nephelometry follows Beer’s law

c) The optical design is identical to a turbidimeter except that a HeNe laser light source is used

d) The detector response is directly proportional to concentration

92 / 100

Category: NHPC , Biochem Specialization

92. Cholesterol esterase is used in enzymatic assays to :

a) Oxidize cholesterol to form peroxide

b) Hydrolyze fatty acids bound to the third carbon atom of cholesterol

c) Separate cholesterol from apoproteins A-I and A-II by hydrolysis

d) Reduce NAD+ to NADH

93 / 100

Category: NHPC , Biochem Specialization

93. Hereditary Fructose Intolerance (HFI) results from a deficiency in :

a) Fructokinase

b) Aldolase A

c) Aldolase B

d) Triose kinase

94 / 100

Category: NHPC , Biochem Specialization

94. Creatinine is formed from the :

a) Oxidation of creatine

b) Oxidation of protein

c) Deamination of dibasic amino acids

d) Metabolism of purines

95 / 100

Category: NHPC , Biochem Specialization

95. Which hormone is hyperglycemic ?

a) Insulin

b) Glucagon

c) Leptin

d) Adiponectin

96 / 100

Category: NHPC , Biochem Specialization

96. What component of a freezing point osmometer measures the sample temperature ?

a) Thermistor

b) Thermocouple

c) Capacitor

d) Electrode

97 / 100

Category: NHPC , Biochem Specialization

97. In the liver, bilirubin is conjugated by the addition of :

a) Vinyl groups

b) Methyl groups

c) Hydroxyl groups

d) Glucuronyl groups

98 / 100

Category: NHPC , Biochem Specialization

98. Which of the following statements about cortisol in Cushing’s syndrome is true ?

a) Twenty-four–hour urinary free cortisol is a more sensitive test than plasma total cortisol

b) Patients with Cushing’s disease show pronounced diurnal variation in serum cortisol

c) Free cortisol is increased by a high-serum cortisol-binding protein concentration

d) An elevated serum total cortisol level is diagnostic of Cushing’s syndrome

99 / 100

Category: NHPC , Biochem Specialization

99. Which of the following represents the Henderson–Hasselbalch equation as applied to blood pH?

a) pH = 6.1 + log HCO 3– /PCO

b) pH = 6.1 + log HCO 3– /(0.03 × PCO2

c) pH = 6.1 + log dCO2 /HCO3 –

d) pH = 6.1 + log (0.03 × PCO2 )/HCO 3–

100 / 100

Category: NHPC , Biochem Specialization

100. Which of the following tumor markers is classified as a tumor suppressor gene ?

a) BRCA-1

b) Carcinoembryonic antigen (CEA)

c) Human chorionic gonadotropin (hCG)

d) Nuclear matrix protein

Your score is

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