Certified Phlebotomy Technician Exam Equipment and Supplies 3

Question 1

What is the maximum number of venipuncture attempts recommended per phlebotomist per patient per CLSI guidelines?

Accepted Answer

2 attempts

Answer

CLSI guidelines recommend no more than 2 venipuncture attempts by one phlebotomist before seeking assistance from another collector.

Question 2

Which antiseptic is the standard choice for routine venipuncture site preparation?

Accepted Answer

70% isopropyl alcohol

Answer

70% isopropyl alcohol is the standard antiseptic for venipuncture site preparation due to its rapid bactericidal action and quick drying.

Question 3

A gray-top tube containing sodium fluoride is primarily used for which test?

Accepted Answer

Glucose and lactate testing

Answer

Sodium fluoride in gray-top tubes inhibits glycolysis, preserving glucose levels for accurate glucose and lactate measurements.

Question 4

Which of the following is a contraindication for venipuncture at a specific site?

Accepted Answer

Presence of an IV line in the same arm

Answer

Drawing blood from the same arm as an IV infusion can dilute or contaminate the sample with IV fluids, yielding inaccurate results.

Question 5

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

Accepted Answer

To mix the blood with the tube's additive

Answer

Gentle inversions mix the blood thoroughly with the additive (anticoagulant or clot activator) to ensure proper function.

Certified Phlebotomy Technician Exam Practice Test