Intraoperative Nursing

The surgical timeout isn't just a formality — it's the last line of defense before an irreversible cut. The circulating nurse owns that moment.

Intraoperative nursing centers on two distinct roles: the circulating nurse (RN) and the scrub nurse (RN or surgical technologist). The circulating nurse is the patient's advocate while they cannot advocate for themselves. This nurse manages the surgical timeout (a mandatory verification of correct patient, correct site, correct procedure per the Universal Protocol), positions the patient to prevent nerve injury and pressure ulcers, monitors intake and output including blood loss, maintains the sterile field without being scrubbed in, documents all counts, and coordinates communication with the surgical team. The scrub nurse works within the sterile field — passing instruments, maintaining sterile technique, and performing the initial surgical count of sponges, sharps, and instruments. Counts happen at three critical points: before the procedure begins, before closure of a cavity, and at skin closure. A discrepancy in count halts closure until resolved, typically requiring an intraoperative x-ray. Positioning injuries (brachial plexus stretch, peroneal nerve compression, pressure ulcers) are nursing-preventable complications assessed during and after positioning. Malignant hyperthermia — triggered by volatile anesthetic agents or succinylcholine — presents with rising end-tidal CO2 (hypercarbia, often the earliest sign), muscle rigidity, tachycardia, and rapidly rising temperature. Dantrolene is the antidote, and the circulating nurse must know its location.

Key Distinctions

The circulating nurse is NOT sterile and manages the room; the scrub nurse IS sterile and works at the field — don't reverse these roles on exam questions. Surgical counts are a nursing responsibility, not the surgeon's. Malignant hyperthermia is an intraoperative emergency (onset within minutes of trigger exposure) distinct from postop fever, which is usually atelectasis or infection presenting 24-72 hours later.

Clinical Pearl

"Time out or back out." If anyone on the team skips the surgical timeout, the circulating nurse stops the room — that authority belongs to you, regardless of hierarchy.