CC - Quiz 2

Question 1

1. Which electrolyte is least likely to be elevated in renal failure?
   *
   A. potassium
   B. Magnesium
   C. Inorganic phosphorous
   D. Sodium

Answer 1

D. Sodium

Question 2

2. Which is a hypoglycemic agent?
   *
   A. Cathecolamines
   B. Insulin
   C. Somatostatin
   D. ACTH

Answer 2

B. Insulin

Question 3

3. The only carbohydrate that can be used directly as energy.
   *
   A. Galactose
   B. Sucrose
   C. Glucose
   D. Lactose

Answer 3

C. Glucose

Question 4

In what level of plasma glucose does the glucose urinary excretion will match the overproduction called “period of plateau” ?
*
A. 200 mg/dL to 300 mg/dL
B. 300 mg/dL to 500mg/dL
C. 350 mg/dL to 400 mg/dL
D. 250 mg/dL to 350mg/dL

Answer 4

B. 300 mg/dL to 500 mg/dL

Question 5

5. What form of cholesterol can be measured on Clinical laboratory? (choose all that applies)
   *
   Free cholesterol
   Cholesterol ester
   Total cholesterol

Answer 5

✔ Free cholesterol
✔ Cholesterol ester
✔ Total cholesterol

Question 6

6. It is considered as a “negative” acute phase reactant.
   *
   A. Albumin
   B. Complement C3
   C. ASO titer
   D. CRP

Answer 6

A. Albumin

Question 7

7. Creatinine is a test for Glomerular Filtration Rate.
   True or False

Answer 7

True

Question 8

8. Which of the following conditions is associated with hypophosphatemia?
   *
   A. Rickets
   B. Multiple myeloma
   C. Renal failure
   D. Hypervitaminosis D

Answer 8

A. Rickets

Question 9

9. Low BUN level is considered abnormal renal function.
   True or False

Answer 9

False

Question 10

10. Which statement best describes the clinical utility of tests for microalbuminuria?
    *
    A. Testing may detect early renal involvement in diabetes mellitus
    B. Microalbuminuria refers to a specific subfraction of albumin found only in persons with diabetic nephropathy..
    C. A positive test result indicates the presence of orthostatic albuminuria.
    D. Testing should be part of the routine urinalysis

Answer 10

A. Testing may detect early renal involvement in diabetes mellitus.

Question 11

11. Severe diarrhea causes?
    *
    A. Respiratory acidosis
    B. Metabolic alkalosis
    C. Respiratory alkalosis
    D. Metabolic acidosis

Answer 11

D. Metabolic acidosis

Question 12

12. The most specific test for acute pancreatitis is:
    *
    A. Acid phosphatase
    B. Trypsin
    C. Amylase
    D. Lipase

Answer 12

D. Lipase

Question 13

13. The VLDL fraction primarily transports what substance?
    *
    A. Cholesterol
    B. Chylomicron
    C. Triglyceride
    D. Phospholipid

Answer 13

C. Triglyceride

Question 14

14. The enzyme present in almost all tissues that may be separated by electrophoresis into 5 components is:
    *
    A. Lipase
    B. Transaminase
    C. Creatine Kinase
    D. Lactate dehydrogenase

Answer 14

D. Lactate dehydrogenase (LDH)

Question 15

15. A potassium level of 6.8 mEq/L (6.8 mmol/L) is obtained. Before reporting the results, the first step the technologist should take is to:
    *
    A. Check the serum for hemolysis
    B. Rerun the test
    C. Check the age of the patient
    D. Do nothing, simply report out the result

Answer 15

A. Check the serum for hemolysis

Question 16

16. Which of the following is most likely to be ordered in addition to serum calcium to determine the cause of tetany?
    *
    A. sodium
    B. Magnesium
    C. Phosphate
    D. Vitamin D

Answer 16

B. Magnesium

Question 17

17. The first step in analyzing a 24-hour urine specimen for quantitative urine protein is:
    *
    A. Subculture the urine for bacteria
    B. Add the appropriate preservative
    C. Screen for albumin using a dipstick
    D. Measure the total volume

Answer 17

D. Measure the total volume

Question 18

18. A serum sample demonstrates an elevated result when tested with Jaffe reaction. This indicates:
    *
    A. Prolonged hypothermia
    B. Renal functional impairment
    C. Pregnancy
    D. Arrhythmia

Answer 18

B. Renal functional impairment

Question 19

19. Which of the following would cause an increase in only the unconjugated bilirubin?
    *
    A. Hemolytic anemia
    B. Obstructive jaundice
    C. Hepatitis
    D. Hepatic cirrhosis

Answer 19

A. Hemolytic anemia

Question 20

20. Hyperparathyroidism is most consistently associated with:
    *
    A. Hypocalcemia
    B. Hypocalciuria
    C. Hypophosphatemia
    D. Metabolic alkalosis

Answer 20

C. Hypophosphatemia

Question 21

21. 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

Answer 21

✔ C. Occult blood

Question 22

22. 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

Answer 22

D. Random plasma glucose of 250 mg/dL and presence of symptoms

Question 23

23. What is the recommended cutoff for the early detection of chronic kidney disease in diabetics using the test for microalbuminuria?
    *
    A. >30 mg/g creatinine
    B. >80 mg/g creatinine
    C. >200 mg/g creatinine
    D. >80 mg/L

Answer 23

A. >30 mg/g creatinine

Question 24

24. Which of the following is the reference method for measuring serum glucose?
    *
    A. Somogyi–Nelson
    B. Hexokinase
    C. Glucose oxidase
    D. Glucose dehydrogenase

Answer 24

B. Hexokinase

Question 25

25. Anion gap is useful for quality control of laboratory results for: * A. Amino acids and proteins B. Blood gas analyses C. Sodium, potassium, chloride and total CO2 D. Calcium, Phosphorus and magnesium

Answer 25

C. Sodium, potassium, chloride and total CO2

Question 26

26. When myocardial infarction occurs, the first enzyme to become elevated is: * A. CK B. LD C. AST D. ALT

Answer 26

A. CK

Question 27

27. Select the most appropriate single screening test for thyroid disease. * A. Free thyroxine index B. Total T3 assay C. Total T4 D. TSH assay

Answer 27

D. TSH assay

Question 28

28. It is used as landmark to confirm that the specimen is really CSF. * A. Albumin B. Prealbumin C. Ceruloplasmin D. Alpha 1, antitrypsin

Answer 28

A. Albumin

Question 29

29. Which of the values is the threshold critical level for low plasma potassium? * A. 1.5 mmol/L B. 2.0 mmol/L C. 2.5 mmol/L D. 3.5 mmol/L

Answer 29

B. 2.0 mmol/L

Question 30

30. Lesch-Nyhan syndrome is a disease associated with what analyte? * A. BUN B. Bilirubin C. BUA D. Calcium

Answer 30

C. BUA (Blood Uric Acid)

Question 31

31. Concentration of this protein is inversely proportional to the severity of the liver disease. * A. Albumin B. Total Protein C. Globulin D. Transferrin

Answer 31

A. Albumin

Question 32

32. It is an index of overall renal function. * A. BUN B. BUA C. Creatinine D. Potassium

Answer 32

C. Creatinine

Question 33

33. All are associated with hypouricemia except: * A. Hodgkin's disease B. Ethanol consumption C. Wilson's disease D. Fanconi's syndrome

Answer 33

B. Ethanol consumption

Question 34

35. It helps in monitoring the decline of serum bilirubin following surgical removal of gallstones. * A. Direct bilirubin B. urobilinogen C. Delta bilirubin D. AST

Answer 34

C. Delta bilirubin

Question 34

34. Associated with juvenile cirrhosis: * A. gamma spike B. A1- globulin flat curve C. Beta-gamma bridging D. A2-globulin band spike

Answer 34

C. Beta-gamma bridging

Question 35

36. Visible icteria in serum occurs when bilirubin level is 23 mg/dL True or False

Answer 35

True

Question 36

37. Term used to describe the accumulation of bilirubin in brain. * A. Jaundice B. Hemolysis C. Kernicterus D. Cholestasis

Answer 36

C. Kernicterus

Question 37

38. Birefringent crystals seen in peritoneal fluid is a definitive diagnosis of gout. True or False

Answer 37

True

Question 38

39. Pseudo hyperkalemia is usually cause by machine error and calibration error. True or False

Answer 38

True

Question 39

40. What test is best to assess kidney glomerular filtration? * A. BUN B. Creatinine clearance C. Creatinine D. Urine protein

Answer 39

B. Creatinine clearance

Question 40

41. The chloride shift in blood takes place between chloride and: * A. Sodium B. Potassium C. Bicarbonate D. Calcium

Answer 40

C. Bicarbonate

Question 41

42. Calcium and phosphate metabolism is regulated by: * A. thyroid gland B. parathyroid gland C. Islets of Langerhans D. Adrenal glands

Answer 41

B. Parathyroid gland

Question 42

43. LDH is elevated in all of the following except: * A. megaloblastic anemia B. viral hepatitis C. severe lead poisoning D. shock

Answer 42

C. Severe lead poisoning

Question 43

44. What tests would be significant in muscular atrophy? (choose all that applies) * CPK aldolase LDH Creatinine

Answer 43

CPK (Creatine Phosphokinase) Aldolase LDH (Lactate Dehydrogenase)

Question 44

45. The storage form of thyroid hormone is: * A. thyroxine B. triiodothyronine C. Thyroglobulin D. Thyroxine binding globulin

Answer 44

C. Thyroglobulin

Question 45

46. Analyte that is used for monitoring therapy with potentially hepatotoxic drugs. * A. ALT B. AST C. Phosphorous D. Troponin

Answer 45

A. ALT (Alanine Aminotransferase)

Question 46

47. For assessing carcinoma of the prostate, quantification of PSA has virtually replaced the measurement of which of the following enzyme? * A. ALP B. ACP C. Alanine aminotransferase D. Trypsin

Answer 46

B. ACP (Acid Phosphatase)

Question 47

48. The single most important analyte in terms of an abnormality being immediately life threatening? * A. Magnesium B. Chloride C. Sodium D. Potassium

Answer 47

D. Potassium

Question 48

49. These are tumor markers except: * A. TPSA B. CA-125 C. CK-1 D. CA-15-13

Answer 48

C. CK-1

Question 49

50. Urea concentration is calculated from the BUN by multiplying by a factor of: * A. 0.50 B. 2.14 C. 6.45 D. 14

Answer 49

B. 2.14