AMCA Diagnostic Procedures 2

Question 1

Which tube color is used for coagulation studies such as PT and aPTT?

Accepted Answer

Light blue

Answer

Light blue (sodium citrate) tubes are used for coagulation studies and must be filled to exactly the correct volume.

Question 2

A fasting blood glucose level of 126 mg/dL on two separate tests is diagnostic of which condition?

Accepted Answer

Diabetes mellitus

Answer

A fasting glucose ≥126 mg/dL on two occasions meets the ADA diagnostic criterion for diabetes mellitus.

Question 3

Which imaging modality uses sound waves to create real-time images of soft tissue structures?

Accepted Answer

Ultrasound

Answer

Ultrasound uses high-frequency sound waves and is particularly useful for visualizing soft tissues, organs, and blood flow.

Question 4

The normal reference range for adult hemoglobin in males is approximately:

Accepted Answer

13.5–17.5 g/dL

Answer

Normal adult male hemoglobin is 13.5–17.5 g/dL; values below this range indicate anemia.

Question 5

Which blood test is the best indicator of long-term glycemic control over approximately 3 months?

Accepted Answer

Hemoglobin A1c

Answer

Hemoglobin A1c reflects average blood glucose over the lifespan of red blood cells (~90 days).

(AMCA) American Medical Certification Association Practice Test