The Surgical Team Works Together in the OR During a bypass procedure, at least eight health professionals are in the operating room participating in the procedure. This team, which includes the cardiovascular surgeon, the physician assistant, the perfusionist, the anesthesiologist, the circulating nurse and three scrub nurses, works like a well-oiled machine to give the highest quality of care to each heart patient. © 2007 Museum of Science and Industry, Chicago. All rights reserved.