Certified Phlebotomy Technician Exam General 5

Question 1

What is the purpose of inverting collection tubes after blood collection?

Accepted Answer

To mix blood with the tube additive

Answer

Gentle inversions ensure the blood mixes thoroughly with the additive (anticoagulant, clot activator, or preservative) to achieve the intended effect.

Question 2

Which of the following is a pre-analytical variable that can affect lab results?

Accepted Answer

Patient fasting status

Answer

Fasting status affects glucose, lipids, and other analytes, making it a pre-analytical (before testing) variable under the phlebotomist's control.

Question 3

A phlebotomist is unable to locate a vein after two attempts. The BEST next step is to:

Accepted Answer

Ask a more experienced colleague or supervisor to attempt the draw

Answer

Most facilities limit phlebotomists to two attempts; if unsuccessful, another qualified staff member should be asked to attempt the collection.

Question 4

Which term describes the cessation of blood flow from a wound through physiological processes?

Accepted Answer

Hemostasis

Answer

Hemostasis is the body's mechanism to stop bleeding through vasoconstriction, platelet plug formation, and the coagulation cascade.

Question 5

Specimens labeled with a 'STAT' priority should be delivered to the laboratory within:

Accepted Answer

30 minutes

Answer

STAT specimens are urgent and most facilities require delivery and initial processing within 30 minutes of collection.

Certified Phlebotomy Technician Exam Practice Test

Certified Phlebotomy Technician Exam Practice Test

Certified Phlebotomy Technician Exam General 5