Certified Phlebotomy Technician Exam Phlebotomy Fundamentals 5

Question 1

A specimen is hemolyzed. Which test result is MOST likely to be falsely elevated?

Accepted Answer

Potassium

Answer

Red blood cells contain high concentrations of potassium, so hemolysis releases intracellular potassium and falsely elevates serum potassium levels.

Question 2

What is the maximum number of venipuncture attempts a phlebotomist should make on a single patient?

Accepted Answer

Two attempts

Answer

Most facilities limit phlebotomists to two attempts, after which a more experienced collector or alternate method should be used.

Question 3

Which antiseptic is the GOLD STANDARD for skin preparation before blood culture collection?

Accepted Answer

Povidone-iodine or chlorhexidine gluconate

Answer

Chlorhexidine gluconate or povidone-iodine provides the broad-spectrum antimicrobial coverage needed to prevent contamination of blood cultures.

Question 4

What does the acronym 'CLSI' stand for in the context of phlebotomy standards?

Accepted Answer

Clinical Laboratory Standards Institute

Answer

CLSI (Clinical and Laboratory Standards Institute) publishes evidence-based guidelines including the order of draw and specimen collection standards.

Question 5

A chain of custody specimen is required. Which step is MOST critical?

Accepted Answer

Documenting every person who handles the specimen and maintaining an unbroken seal

Answer

Chain of custody requires documented, unbroken transfer records to ensure the specimen has not been tampered with, critical for legal and forensic samples.

Certified Phlebotomy Technician Exam Practice Test

Certified Phlebotomy Technician Exam Practice Test

Certified Phlebotomy Technician Exam Phlebotomy Fundamentals 5