January 2026 | Phlebotomy Technician Certification Exam Prep –
National Phlebotomy Certification | COMPLETE Practice Questions with
Verified Answers | Updated 2025–2026 Edition | High-Yield Study Guide
for CPT, PBT & Phlebotomy Licensing Exam Success
, 1. Which of the following veins is most commonly used for venipuncture?
• A) Basilic vein
• B) Median cubital vein
• C) Cephalic vein
• D) Jugular vein
Correct Option: B) Median cubital vein
Rationale: The median cubital vein is generally preferred for venipuncture due to its
size, accessibility, and relatively superficial location. It typically has a low risk of
complications compared to other veins, making it the first choice for phlebotomists.
2. What is the purpose of a tourniquet during venipuncture?
• A) To sterilize the area
• B) To engorge the vein
• C) To minimize pain
• D) To suction blood
Correct Option: B) To engorge the vein
Rationale: The primary function of a tourniquet is to temporarily restrict venous blood
flow, which helps to engorge the veins. This engorgement facilitates easier access for
needle insertion during venipuncture, making it easier to locate and puncture a vein.
3. Which of the following is an appropriate action if the patient feels faint during a
blood draw?
• A) Remove the needle immediately and assist the patient to a lying position
• B) Continue the procedure as planned
• C) Ask the patient to take deep breaths and keep sitting
• D) Leave the patient to seek help
Correct Option: A) Remove the needle immediately and assist the patient to a lying
position
Rationale: If a patient feels faint, it is essential to stop the procedure immediately to
prevent injury. Assisting the patient into a lying position helps ensure that blood flow to
the brain is maintained, reducing the risk of fainting or falling.
National Phlebotomy Certification | COMPLETE Practice Questions with
Verified Answers | Updated 2025–2026 Edition | High-Yield Study Guide
for CPT, PBT & Phlebotomy Licensing Exam Success
, 1. Which of the following veins is most commonly used for venipuncture?
• A) Basilic vein
• B) Median cubital vein
• C) Cephalic vein
• D) Jugular vein
Correct Option: B) Median cubital vein
Rationale: The median cubital vein is generally preferred for venipuncture due to its
size, accessibility, and relatively superficial location. It typically has a low risk of
complications compared to other veins, making it the first choice for phlebotomists.
2. What is the purpose of a tourniquet during venipuncture?
• A) To sterilize the area
• B) To engorge the vein
• C) To minimize pain
• D) To suction blood
Correct Option: B) To engorge the vein
Rationale: The primary function of a tourniquet is to temporarily restrict venous blood
flow, which helps to engorge the veins. This engorgement facilitates easier access for
needle insertion during venipuncture, making it easier to locate and puncture a vein.
3. Which of the following is an appropriate action if the patient feels faint during a
blood draw?
• A) Remove the needle immediately and assist the patient to a lying position
• B) Continue the procedure as planned
• C) Ask the patient to take deep breaths and keep sitting
• D) Leave the patient to seek help
Correct Option: A) Remove the needle immediately and assist the patient to a lying
position
Rationale: If a patient feels faint, it is essential to stop the procedure immediately to
prevent injury. Assisting the patient into a lying position helps ensure that blood flow to
the brain is maintained, reducing the risk of fainting or falling.
