Laboratory Science Clinical Chemistry

Question 1

What is the reference range for fasting blood glucose in a non-diabetic adult?

Accepted Answer

70–99 mg/dL

Answer

40–70 mg/dL

Answer

120–150 mg/dL

Answer

160–200 mg/dL

Question 2

Which enzyme is the primary cardiac biomarker used to diagnose acute myocardial infarction?

Accepted Answer

Troponin I or T

Answer

ALT (alanine aminotransferase)

Answer

Amylase

Answer

Lipase

Question 3

What does the HbA1c test measure?

Accepted Answer

Average blood glucose over the past 2–3 months

Answer

Current blood glucose at time of draw

Answer

Insulin secretion capacity

Answer

Red blood cell lifespan

Question 4

Elevated serum creatinine is most indicative of dysfunction in which organ?

Accepted Answer

Kidney

Answer

Liver

Answer

Pancreas

Answer

Thyroid

Question 5

Which liver enzyme is most specific for hepatocellular damage?

Accepted Answer

ALT (alanine aminotransferase)

Answer

AST (aspartate aminotransferase)

Answer

GGT (gamma-glutamyl transferase)

Answer

ALP (alkaline phosphatase)

Question 6

What is the purpose of the eGFR calculation in clinical chemistry?

Accepted Answer

Estimate kidney filtration capacity based on creatinine, age, sex, and race

Answer

Estimate liver synthetic function

Answer

Calculate cardiac output

Answer

Measure thyroid hormone clearance