2025 ACTUAL EXAM TEST BANK|
COMPLETE 450 REAL EXAM QUESTIONS
AND CORRECT VERIFIED ANSWERS/
ALREADY GRADED A+| PHLEBOTOMY
NPCE CERTIFICATION EXAM REVIEW
2025 (BRAND NEW!!)
1. What is the most common site for venipuncture?
A. Femoral vein
B. Cephalic vein
C. Median cubital vein
D. Dorsal hand veins
Answer: C - The median cubital vein in the antecubital fossa is the
preferred site due to its size, stability, and reduced pain for the patient.
2. Which tube is drawn first in the order of draw for a routine
venipuncture?
A. Light blue top (Sodium Citrate)
B. Red top (No additive)
C. Blood culture bottles or yellow SPS tube
D. Lavender top (EDTA)
Answer: C - Sterile tubes (blood cultures) are always drawn first to
prevent contamination from additives in other tubes.
,3. What is the primary purpose of a tourniquet?
A. To stop bleeding after the draw
B. To make veins more visible and palpable
C. To prevent nerve damage
D. To sanitize the site
Answer: B - The tourniquet is applied to restrict venous flow, causing
veins to become more prominent for easier access.
4. How long should pressure be applied to the venipuncture site after
needle withdrawal?
A. 15-30 seconds
B. 1-2 minutes
C. Until the bleeding stops
D. 5-10 minutes
Answer: C - Pressure should be applied with gauze until hemostasis
(bleeding stops) is achieved, typically 1-2 minutes, longer if the patient is
on anticoagulants.
5. Which needle gauge is most commonly used for a routine adult
venipuncture?
A. 16-gauge
B. 18-gauge
C. 21-gauge
D. 25-gauge
Answer: C - 21-gauge is standard. Larger gauges (like 16 or 18) are for
blood donation, and smaller gauges (like 25) are for fragile veins.
6. What additive is in a lavender-top tube?
A. Heparin
B. EDTA
C. Sodium citrate
D. Clot activator
Answer: B - Lavender-top tubes contain EDTA
,(Ethylenediaminetetraacetic acid), an anticoagulant that chelates
calcium, used for hematology tests (CBC).
7. If a patient feels faint during a venipuncture, what is the FIRST action
the phlebotomist should take?
A. Quickly finish the draw
B. Remove the tourniquet and needle, and lower the patient's head
C. Call for a nurse
D. Ask the patient to take deep breaths
Answer: B - Immediate action is to stop the procedure, remove all
equipment, and place the patient in a safe position (like supine) to
prevent injury from fainting.
8. How should you properly label a specimen tube at the patient's
bedside?
A. Label it after leaving the room
B. Label it immediately after collection, in front of the patient, with at least
two patient identifiers
C. Pre-label the tubes before entering the room
D. Let the nurse label it later
Answer: B - Labeling immediately at the bedside using two identifiers
(e.g., name and date of birth) is critical to prevent specimen identification
errors.
9. Which of the following is a CLSI-recommended angle for needle
insertion during a routine venipuncture?
A. 5-15 degrees
B. 15-30 degrees
C. 30-45 degrees
D. 45-60 degrees
Answer: B - The needle should be inserted at a 15 to 30-degree angle to
the skin, bevel up.
, 10. What does hemolysis of a blood sample most likely cause?
A. Clotting
B. Inaccurate test results, especially for potassium and LDH
C. Improved sample quality
D. No significant effect
Answer: B - Hemolysis (rupture of red blood cells) releases intracellular
components like potassium and lactate dehydrogenase (LDH), falsely
elevating their levels in the plasma.
Which of the following statements is not one of the 3 major goals of the
Patient's Bill of Rights?
- Assures that the health care system is fair and it works to meet patients'
needs.
- Gives patients a way to address any problems they may have.
- Encourages patients to take an active role in staying or getting healthy.
- Ensures that the care you receive is affordable. - ✔✔ANSW✔✔..Ensures
that the care you receive is affordable.
Which of the following duties is outside the scope of the phlebotomist's
practice?
- Collecting a tissue sample.
- Labeling samples correctly.
- Drawing blood using the appropriate equipment.
- Identifying patients properly. - ✔✔ANSW✔✔..Collecting a tissue
sample.
In delivering quality patient care, which of the following actions should be
avoided?
- Excessive punctures.
- Repeated draws.