NHA Phlebotomy Certification Practice Exam

Which action should NOT be performed during venipuncture?

1. Anchor the vein above and below the puncture site.

2. Insert the needle with the bevel up.

3. Insert the needle at a 15- to 30-degree angle.

4. Brace the hand holding the adapter on the patient's arm.

The correct answer is: Anchor the vein above and below the puncture site.

During venipuncture, it is essential to ensure that the needle is inserted effectively and that the surrounding area is stable to minimize the risk of complications. Anchoring the vein by placing pressure above the puncture site is a common practice to help immobilize the vein and prevent movement during the procedure. However, anchoring the vein both above and below the puncture site can increase complications, such as limiting blood flow or causing discomfort to the patient. By inserting the needle with the bevel facing up, the technician ensures that the sharp edge of the needle is positioned correctly to penetrate the skin and enter the vein smoothly. This technique is fundamental for successful venipuncture, reducing the risk of causing trauma to the surrounding tissue. Inserting the needle at a 15- to 30-degree angle is essential for effective entry into the vein without causing excessive trauma. This angle allows the needle to penetrate the skin and enter the lumen of the vein with optimal precision. Bracing the hand holding the adapter on the patient's arm is also important, as it provides stability during the procedure and ensures that the needle remains in the correct position after insertion. Therefore, avoiding the action of anchoring the vein above and below the puncture site is crucial for a safe and