American Medical Certification Association (AMCA) Phlebotomy Practice Exam 2025 - Free Phlebotomy Practice Questions and Study Guide

If a phlebotomist suspects that they have punctured an artery instead of a vein, the most appropriate action is to withdraw the needle immediately and apply pressure. Puncturing an artery can lead to complications such as arterial bleeding, which is more severe than venous bleeding.

Withdrawing the needle promptly minimizes further injury and helps control bleeding. Applying pressure to the site is crucial because it helps to constrict the artery, reducing blood loss and promoting clotting at the puncture site. It is important to maintain firm pressure for a sufficient amount of time to ensure hemostasis.

Other responses may not address the situation effectively. Leaving the needle in place could exacerbate bleeding or cause further complications. Continuing the blood draw is inappropriate as it could worsen the injury and increase the risk of hematoma formation. While involving a supervisor can be important, immediate action to manage the injury takes priority in this emergency situation.