What Do Perfusionists Do? Perfusionists are skilled allied health professionals. They use medical technology to sustain the heart, lungs, circulatory, and respiratory functions of the body during surgery. Specifically, perfusionists operate a heart-lung (or cardiopulmonary bypass) machine that keeps oxygenated blood flowing throughout the body during surgery, and they also monitor blood circulation. If a patient requires additional blood products or medications during the procedure, the perfusionist can administer these …Read More