Inside the surgery room, the patient is powerless—incapable of making a decision on his or her own, and hence, the circulating nurse acts as the patient advocate while the patient is under the influence of anesthesia. The Nurse Circulator ensures safety of patient within the period of operation. Perioperative nursing is a unique type of nursing specialty and an essential member of the surgery team. The circulating nurse works by collaborating with other members of the team including the anesthesiologist, surgeon, surgical technologist, surgical assistant, and other personnel. They render expert pre-, intra- and post-operative nursing service.