Perioperative nurses are the registered nurses. They are also known as RNs who work in hospital operating units, day surgery units which is also known as ambulatory surgery, hospitals and doctors' offices. They work carefully with the surgical patient, family members and other health care specialists to help plan, implement and assess treatment. In the operating area the perioperative nurse might assist as a scrub nurse who will select and pass instruments and supplies which are used for the procedure, and a circulating nurse who will manage the complete nursing care in the operating room and serving to continue a safe and relaxed environment. Using a complete and multidisciplinary method to patient care the perioperative nurse works closely with the total surgical team.