Answers | Latest Version | 2025/2026 |
Correct & Verified
What is the first step before performing a venipuncture?
A) Insert the needle immediately
B) Shake the tube to mix additives
✔✔C) Verify patient identity using two identifiers
D) Apply tourniquet after the puncture
Which vein is most commonly used for routine blood draws?
A) Basilic vein
✔✔B) Median cubital vein
C) Cephalic vein
D) Femoral vein
What is the correct angle for needle insertion during a standard venipuncture?
A) 90 degrees
✔✔B) 15–30 degrees
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,C) 45–60 degrees
D) 5 degrees
How long should a tourniquet be applied before drawing blood?
A) 10 minutes
B) 5 minutes
✔✔C) No more than 1 minute
D) Until patient feels discomfort
What should be done if a patient has a hematoma forming during venipuncture?
A) Continue drawing blood
✔✔B) Remove needle and apply pressure
C) Apply ice directly on the vein
D) Massage the area vigorously
Which of the following is the best way to prevent hemolysis of a blood sample?
A) Shake the tube rapidly
✔✔B) Gently invert the tube several times
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,C) Freeze the sample immediately
D) Heat the sample before transport
Which additive is found in lavender-top tubes?
A) Sodium citrate
✔✔B) EDTA
C) Heparin
D) No additive
What is the proper procedure for labeling blood tubes?
A) Before collection
B) After sending to the lab
✔✔C) Immediately after collection, at the bedside
D) After centrifuging
Which of the following is a sign of syncope during phlebotomy?
A) High blood pressure
B) Rapid breathing
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, ✔✔C) Dizziness and pallor
D) Warm skin
Which vein should generally be avoided due to proximity to arteries and nerves?
✔✔A) Basilic vein
B) Median cubital vein
C) Cephalic vein
D) Dorsal hand vein
What is the recommended site for capillary blood collection in adults?
A) Earlobe
B) Palm
✔✔C) Side of the fingertip
D) Forearm
How should blood be drawn from an infant via heel stick?
A) Central heel only
✔✔B) Lateral or medial plantar surface
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