Certified Phlebotomy Technician Exam Basic 3

Question 1

Which of the following is a symptom of a vasovagal reaction during phlebotomy?

Accepted Answer

Pallor, diaphoresis, and loss of consciousness

Answer

Vasovagal syncope presents with pallor, sweating, nausea, bradycardia, and possible fainting due to a sudden drop in blood pressure.

Question 2

What does 'CLSI' stand for and why is it important in phlebotomy?

Accepted Answer

Clinical Laboratory Standards Institute — sets standards for laboratory procedures

Answer

CLSI (Clinical Laboratory Standards Institute) publishes evidence-based guidelines, including H3-A6 for venipuncture, that standardize phlebotomy practices nationwide.

Question 3

A phlebotomist is collecting blood cultures. What is the correct skin preparation sequence?

Accepted Answer

Chlorhexidine gluconate (or iodine tincture) scrub after alcohol, allowed to dry completely

Answer

Blood culture skin prep requires a two-step process — alcohol followed by chlorhexidine or iodine — with full dry time to minimize contamination.

Question 4

What is the primary purpose of inverting a collection tube after drawing blood?

Accepted Answer

To mix the blood with the tube additive thoroughly

Answer

Gentle inversion (typically 3–8 times depending on tube type) ensures the blood mixes completely with the additive to achieve the intended anticoagulant or preservative effect.

Question 5

Which condition makes the antecubital fossa an unsuitable venipuncture site?

Accepted Answer

Presence of an arteriovenous (AV) fistula for dialysis

Answer

An AV fistula is a surgically created connection for dialysis; drawing blood from that arm risks fistula damage, infection, and inaccurate results.

Certified Phlebotomy Technician Exam Practice Test

Certified Phlebotomy Technician Exam Practice Test

Certified Phlebotomy Technician Exam Basic 3