NCCT Phlebotomy Technician Certification
Exam (NCPT) Practice Questions And
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant Download
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1. What is the primary purpose of performing venipuncture?
A. Administer medications
B. Obtain blood specimens for laboratory testing
C. Measure blood pressure
D. Provide intravenous therapy
Answer: B. Obtain blood specimens for laboratory testing
Rationale: The main role of a phlebotomist is to collect blood samples safely
and accurately for laboratory analysis.
, 2. Which of the following is the correct order of draw for routine
venipuncture?
A. Red, Light Blue, Green, Lavender
B. Light Blue, Red, Green, Lavender
C. Lavender, Green, Red, Light Blue
D. Green, Lavender, Red, Light Blue
Answer: B. Light Blue, Red, Green, Lavender
Rationale: Following the correct order of draw prevents cross-contamination
of additives between tubes.
3. What is the most common vein used for venipuncture?
A. Basilic vein
B. Cephalic vein
C. Median cubital vein
D. Dorsal hand vein
Answer: C. Median cubital vein
Rationale: The median cubital vein is preferred because it is large, well-
anchored, and generally less painful to puncture.
4. A patient faints during venipuncture. What is the first action a
phlebotomist should take?
A. Finish the blood draw quickly
, B. Remove the needle and assist the patient to a lying position
C. Call the lab supervisor immediately
D. Apply a warm compress
Answer: B. Remove the needle and assist the patient to a lying position
Rationale: Safety is the priority; the patient must be protected from injury
and monitored for complications.
5. Which of the following antiseptics is commonly used for routine blood
draws?
A. Iodine
B. Alcohol-free wipes
C. 70% Isopropyl alcohol
D. Hydrogen peroxide
Answer: C. 70% Isopropyl alcohol
Rationale: 70% isopropyl alcohol is effective at disinfecting the puncture site
without causing tissue irritation.
6. Hematoma formation during venipuncture is usually caused by:
A. Using too small a needle
B. Needle puncturing through the vein
C. Overfilling the tube
D. Applying too much pressure afterward
, Answer: B. Needle puncturing through the vein
Rationale: A hematoma occurs when blood leaks into surrounding tissue due
to vein puncture or improper technique.
7. What is the best practice if a patient refuses to have blood drawn?
A. Persuade them forcefully
B. Respect the patient’s decision and document it
C. Ignore and proceed
D. Call law enforcement
Answer: B. Respect the patient’s decision and document it
Rationale: Patient consent is mandatory; refusal must be documented
according to policy.
8. What is the most appropriate gauge needle for a standard adult
venipuncture?
A. 16 gauge
B. 18 gauge
C. 21 gauge
D. 25 gauge
Answer: C. 21 gauge
Rationale: 21 gauge needles provide a good balance between blood flow
and patient comfort for most adults.
Exam (NCPT) Practice Questions And
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant Download
1. What is the primary purpose of performing venipuncture?
A. Administer medications
B. Obtain blood specimens for laboratory testing
C. Measure blood pressure
D. Provide intravenous therapy
Answer: B. Obtain blood specimens for laboratory testing
Rationale: The main role of a phlebotomist is to collect blood samples safely
and accurately for laboratory analysis.
, 2. Which of the following is the correct order of draw for routine
venipuncture?
A. Red, Light Blue, Green, Lavender
B. Light Blue, Red, Green, Lavender
C. Lavender, Green, Red, Light Blue
D. Green, Lavender, Red, Light Blue
Answer: B. Light Blue, Red, Green, Lavender
Rationale: Following the correct order of draw prevents cross-contamination
of additives between tubes.
3. What is the most common vein used for venipuncture?
A. Basilic vein
B. Cephalic vein
C. Median cubital vein
D. Dorsal hand vein
Answer: C. Median cubital vein
Rationale: The median cubital vein is preferred because it is large, well-
anchored, and generally less painful to puncture.
4. A patient faints during venipuncture. What is the first action a
phlebotomist should take?
A. Finish the blood draw quickly
, B. Remove the needle and assist the patient to a lying position
C. Call the lab supervisor immediately
D. Apply a warm compress
Answer: B. Remove the needle and assist the patient to a lying position
Rationale: Safety is the priority; the patient must be protected from injury
and monitored for complications.
5. Which of the following antiseptics is commonly used for routine blood
draws?
A. Iodine
B. Alcohol-free wipes
C. 70% Isopropyl alcohol
D. Hydrogen peroxide
Answer: C. 70% Isopropyl alcohol
Rationale: 70% isopropyl alcohol is effective at disinfecting the puncture site
without causing tissue irritation.
6. Hematoma formation during venipuncture is usually caused by:
A. Using too small a needle
B. Needle puncturing through the vein
C. Overfilling the tube
D. Applying too much pressure afterward
, Answer: B. Needle puncturing through the vein
Rationale: A hematoma occurs when blood leaks into surrounding tissue due
to vein puncture or improper technique.
7. What is the best practice if a patient refuses to have blood drawn?
A. Persuade them forcefully
B. Respect the patient’s decision and document it
C. Ignore and proceed
D. Call law enforcement
Answer: B. Respect the patient’s decision and document it
Rationale: Patient consent is mandatory; refusal must be documented
according to policy.
8. What is the most appropriate gauge needle for a standard adult
venipuncture?
A. 16 gauge
B. 18 gauge
C. 21 gauge
D. 25 gauge
Answer: C. 21 gauge
Rationale: 21 gauge needles provide a good balance between blood flow
and patient comfort for most adults.
