Consolidated Political Compass Test (CPCT) Practice Exam 2026 - Free CPCT Practice Questions and Assessment Guide

To effectively prevent reflux during a blood draw, holding the patient's arm downward facilitates a smooth flow of blood from the site of the collection into the collection tube. When the arm is held in a downward position, gravity assists the blood flow, reducing resistance and the likelihood of the blood flowing back into the vein from the tube. This positioning can help maintain a consistent and uninterrupted flow during the procedure. Other methods, such as elevation or clenching a fist, may create additional pressure or restrict blood flow, which could contribute to reflux rather than preventing it.