Standard Operating Procedure: Operating Theatre (OT) Management

This Standard Operating Procedure (SOP) defines the systematic protocols required for the management of the Operating Theatre (OT). The objective is to maintain a sterile, efficient, and safe surgical environment, ensuring the highest standards of patient safety, infection control, and operational readiness. All personnel, including surgeons, anesthetists, nursing staff, and technicians, must adhere to these guidelines to mitigate surgical site infections (SSIs) and ensure seamless clinical workflows.

Pre-Operative Phase: Preparation and Readiness

• Environmental Check: Confirm the HVAC system is functional, maintaining positive pressure and appropriate air exchange rates (minimum 20 air changes per hour).
• Sterility Audit: Inspect all sterile packs for indicator integrity, expiration dates, and physical breaches (tears or dampness).
• Equipment Calibration: Verify the functionality of anesthesia machines, monitors, cautery units, and surgical lights.
• Safety Briefing (The "Huddle"): Conduct a preoperative briefing involving the entire surgical team to review the surgical plan, critical steps, and potential equipment requirements.
• Patient Verification: Execute the WHO Surgical Safety Checklist (Sign-in) to confirm patient identity, consent, site, and procedure.

Intra-Operative Phase: Execution and Monitoring

• Surgical Scrub: Adhere to the WHO-recommended 5-minute hand-scrub protocol using approved antiseptic solutions.
• Aseptic Field Maintenance: Maintain a strict "no-touch" technique. The sterile field must be monitored continuously; any breach must be reported and addressed immediately.
• Time-Out: Prior to the initial incision, perform a mandatory "Time-Out" where all team members stop to verify patient, site, procedure, and implant availability.
• Instrument Counting: Perform the first count of sponges, needles, and instruments before the procedure begins. Record findings on the surgical log.
• Documentation: Maintain real-time logs of anesthesia administration, vital signs, fluids, and personnel present in the OT.

Post-Operative Phase: Recovery and Turnover

• Final Count: Perform a final audit of all surgical items (sponges, needles, instruments) prior to skin closure.
• Sign-Out: Document the procedure, specimen labeling, and recovery instructions before the patient leaves the OT.
• Decontamination: Follow terminal cleaning protocols: remove all waste, disinfect equipment, and wipe down surfaces with hospital-grade, EPA-approved disinfectants.
• Restocking: Replenish consumables and replace used instrument trays with fresh, sterilized sets.
• Readiness Status: Ensure the theatre is returned to a state of complete readiness for the next patient.

Pro Tips & Pitfalls

• Pro Tip (Traffic Control): Limit the number of people in the OT. Excess movement creates turbulent airflow, which significantly increases the risk of airborne contamination.
• Pro Tip (Standardization): Use "Pick Lists" or "Preference Cards" for every surgeon to ensure all necessary equipment is present before the patient enters, reducing turnover time.
• Pitfall (Complacency): The most dangerous moment in an OT is the "routine" procedure. Never skip the Time-Out or the instrument count, even for minor surgeries.
• Pitfall (Humidity/Temp): Ignore environmental parameters at your peril. High humidity promotes bacterial growth, while cold temperatures increase the patient’s risk of hypothermia and coagulopathy.

Frequently Asked Questions (FAQ)

1. What should be done if a sterile field breach is suspected? Immediately notify the circulating nurse and the surgeon. Treat the affected area as contaminated, dispose of the compromised items, and re-establish the sterile field before proceeding. Never guess—if in doubt, it is contaminated.

2. How often should the OT undergo terminal cleaning? Terminal cleaning must be performed at the end of each surgical list or at the end of every 24-hour cycle. If a septic or infectious case is handled, a specialized terminal cleaning protocol must be triggered immediately following the exit of the patient.

3. Who is responsible for the accuracy of the instrument count? The surgical nurse (scrub nurse) and the circulating nurse share joint responsibility. The count must be verified verbally and documented in the patient’s surgical record. If there is a discrepancy, the surgeon must be notified, and an X-ray must be performed before the patient leaves the theatre.