Medical Technologist Test Clinical Chemistry

Question 1

Which enzyme is the MOST sensitive and specific marker for acute myocardial infarction?

Accepted Answer

Troponin I or T

Answer

AST

Answer

LDH

Answer

CK-MB

Question 2

What is the normal fasting blood glucose reference range for adults?

Accepted Answer

70–99 mg/dL

Answer

50–70 mg/dL

Answer

100–125 mg/dL

Answer

126–140 mg/dL

Question 3

Elevated serum amylase and lipase are characteristic of which condition?

Accepted Answer

Acute pancreatitis

Answer

Hepatitis

Answer

Renal failure

Answer

Myocardial infarction

Question 4

Which electrolyte imbalance is MOST likely in a patient with prolonged vomiting?

Accepted Answer

Hypokalemic metabolic alkalosis

Answer

Hyperkalemia

Answer

Hyperchloremia

Answer

Hypernatremia

Question 5

What does an elevated BUN-to-creatinine ratio (>20:1) typically indicate?

Accepted Answer

Prerenal azotemia

Answer

Intrinsic renal failure

Answer

Postrenal obstruction

Answer

Chronic kidney disease

Question 6

Hemoglobin A1c (HbA1c) reflects average blood glucose over approximately how many weeks?

Accepted Answer

10–12 weeks

Answer

2–4 weeks

Answer

6–8 weeks

Answer

16–20 weeks