NHA Phlebotomy Certification Practice Exam

What is the recommended angle for needle insertion during venipuncture?

1. 10 to 15 degrees.

2. 15 to 30 degrees.

3. 30 to 45 degrees.

4. 45 to 60 degrees.

The correct answer is: 15 to 30 degrees.

The recommended angle for needle insertion during venipuncture is between 15 to 30 degrees. This angle is ideal because it allows for optimal access to the vein while minimizing discomfort for the patient. When the needle is inserted at this angle, it strikes the vein wall at a sufficient depth to gain access, without being too steep, which could pass through the vein and puncture the other side. Inserting the needle too shallow, such as at an angle of 10 to 15 degrees, can lead to difficulty in accessing the vein adequately, potentially resulting in a failed blood draw or the need for repeated attempts. Conversely, an angle exceeding 30 degrees can increase the risk of going through the vein or causing excess trauma to the surrounding tissue, which may result in complications like hematoma formation. Therefore, adhering to the recommended 15 to 30-degree angle ensures an effective and safe venipuncture procedure.