NHA PHLEBOTOMY EXAM PRACTICE EXAM WITH CORRECT ACTUAL QUESTIONS AND CORRECTLY WELL DEFINED ANSWERS LATEST ALREADY GRADED A+

NHA PHLEBOTOMY EXAM PRACTICE
EXAM WITH CORRECT ACTUAL
QUESTIONS AND CORRECTLY WELL
DEFINED ANSWERS LATEST ALREADY
GRADED A+



1. What is the primary function of red blood cells?


A. Fight infection
B. Carry oxygen
C. Clot blood
D. Produce hormones


Correct Answer: B. Carry oxygen


Explanation:
Red blood cells contain hemoglobin, which binds oxygen in
the lungs and transports it to body tissues.

,2. Which additive prevents blood from clotting by binding
calcium?


A. EDTA
B. Sodium citrate
C. Heparin
D. Glucose


Correct Answer: C. Heparin


Explanation:
Heparin inhibits thrombin formation, preventing clotting by
interfering with calcium-dependent steps.


3. What is the first step in patient identification?


A. Draw blood immediately
B. Ask patient for diagnosis
C. Check two identifiers
D. Label tubes first

, Correct Answer: C. Check two identifiers


Explanation:
Two identifiers (name and DOB) ensure correct patient
safety before any procedure.


4. Which vein is most commonly used for venipuncture?


A. Basilic vein
B. Cephalic vein
C. Median cubital vein
D. Femoral vein


Correct Answer: C. Median cubital vein


Explanation:
It is large, stable, and least painful for most patients.


5. What is the correct angle for venipuncture?


A. 5–10°

, B. 15–30°
C. 45–60°
D. 90°


Correct Answer: B. 15–30°


Explanation:
This angle allows proper entry into the vein without going
through it.


6. What color tube contains EDTA?


A. Red
B. Green
C. Lavender
D. Blue


Correct Answer: C. Lavender


Explanation:
EDTA preserves blood cells and is used for CBC tests.