Certified Phlebotomy Technician Exam Certified Phlebotomy Technician (CPT) MCQ 4

Question 1

Which specimen is preferred for point-of-care glucose testing using a glucometer?

Accepted Answer

Whole capillary blood

Answer

Point-of-care glucometers are designed to analyze whole capillary blood obtained from a fingerstick or heelstick.

Question 2

What does CLSI (Clinical and Laboratory Standards Institute) recommend as the correct number of times to invert an EDTA tube after collection?

Accepted Answer

8–10 times

Answer

CLSI recommends gently inverting EDTA (lavender-top) tubes 8–10 times to ensure complete mixing of the anticoagulant with the blood.

Question 3

A phlebotomist accidentally sustains a needlestick injury. What is the FIRST immediate action?

Accepted Answer

Squeeze blood from the wound and wash with soap and water

Answer

The first step after a needlestick is to immediately wash the wound thoroughly with soap and water; reporting and follow-up testing come after first aid.

Question 4

Which of the following conditions would cause a specimen to be rejected for hemolysis?

Accepted Answer

Vigorously mixing the tube after collection

Answer

Vigorous mixing of a blood tube ruptures red blood cells, causing hemolysis, which interferes with potassium, LDH, and numerous other analyte measurements.

Question 5

What is the primary purpose of performing a two-patient-identifier check before phlebotomy?

Accepted Answer

To ensure the specimen is collected from the correct patient

Answer

Two-patient-identifier verification (e.g., name and date of birth or ID number) is a critical safety step to prevent specimen mislabeling and wrong-patient errors.

Certified Phlebotomy Technician Exam Practice Test

Certified Phlebotomy Technician Exam Practice Test

Certified Phlebotomy Technician Exam Certified Phlebotomy Technician (CPT) MCQ 4