NHA Phlebotomy Certification Practice Exam

When may the puncture site require additional pressure to control bleeding?

1. When the patient has low blood pressure

2. When the patient is taking anticoagulants

3. When the patient frequently takes aspirin

4. Both B and C

The correct answer is: Both B and C

The need for additional pressure at the puncture site to control bleeding is particularly important when a patient is on anticoagulants or frequently takes aspirin. Both anticoagulant medications and aspirin affect the blood's ability to clot. Anticoagulants, such as warfarin or heparin, directly inhibit the clotting mechanism in the body, which can prolong bleeding at sites of injury, including venipuncture sites. Similarly, aspirin has an antiplatelet effect, meaning it prevents platelets from clumping together, also leading to increased bleeding times. In cases where patients are on these medications, applying extra pressure after a blood draw can help control any excessive bleeding by aiding in the formation of a clot and ensuring that the puncture site seals properly. Therefore, recognizing that these factors necessitate vigilance in post-procedure care highlights the importance of understanding how certain medications influence bleeding risks during and after a phlebotomy procedure.