Difficulty: Easy

Average Score: 100%

When using a butterfly needle for venipuncture on dorsal hand veins, which of the following actions should the phlebotomist take?

Rationale

Hold the needle by the wings of the butterfly.

When performing venipuncture using a butterfly needle on dorsal hand veins, it is crucial for the phlebotomist to hold the needle securely by its wings. This ensures proper control and stability during the procedure, minimizing the risk of accidental needle dislodgement or movement.

A (Position the needle at a 45° angle to the skin.) YOUR ANSWER

The angle of insertion for a butterfly needle during venipuncture is typically shallower than 45°, especially when targeting superficial veins like those in the dorsal hand. A lower angle helps prevent excessive tissue trauma and increases the likelihood of successful blood collection.

B (Hold the needle by the wings of the butterfly.) CORRECT

Correct. Holding the butterfly needle by the wings provides stability and control during the venipuncture process. This grip allows for precise positioning and manipulation of the needle tip, reducing the chance of movement that could lead to discomfort or failed blood draw.

C (Instruct the patient to hold the collection tubes.) YOUR ANSWER

While patient cooperation is essential during venipuncture, instructing the patient to hold the collection tubes is not directly related to the phlebotomist's actions with the butterfly needle. The phlebotomist should handle the needle and blood collection process independently.

D (Apply the tourniquet at the antecubital area.) YOUR ANSWER

The antecubital area is typically used for venipuncture procedures involving larger veins, such as the median cubital vein. When performing venipuncture on dorsal hand veins with a butterfly needle, the tourniquet should be applied proximally on the arm to aid in vein distension and facilitate blood flow.

Conclusion

When using a butterfly needle for venipuncture on dorsal hand veins, the phlebotomist should prioritize holding the needle securely by its wings to ensure stability and control during the procedure. Proper grip minimizes the risk of complications and enhances the overall success of the blood collection process.

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