The Surgical Team, Suite Design, and OSHA Safety

The Surgical Team and Scope of Practice

Every veterinary surgical procedure depends on a coordinated team. Understanding who does what — and staying within each role's scope of practice — protects the patient, the team, and the practice from harm and legal liability.

The Veterinarian / Surgeon holds primary responsibility for the patient. Only a licensed veterinarian may perform surgery, make diagnoses, and prescribe treatments. The surgeon maintains a sterile field at the operative site and leads all clinical decisions during the procedure.

The Credentialed Veterinary Technician (CVT/RVT/LVT) works under veterinary supervision and may perform tasks delegated by state law, which vary by state. Common surgical duties include anesthesia monitoring, preparing and operating anesthesia equipment, administering medications as directed, and assisting as the scrub tech when properly trained. The credentialed technician does not diagnose, prescribe, or perform surgery.

The Scrub Technician (Sterile Assistant) — which may be a credentialed tech or a trained assistant depending on facility policy and state law — performs a surgical hand scrub, dons sterile gown and gloves, and directly assists the surgeon by passing instruments, holding retractors, and maintaining the sterile field. Any break in sterility must be announced immediately.

The Circulator remains outside the sterile field. This role opens sterile supply packages, adjusts equipment, records data, retrieves items, and communicates with staff outside the room. A veterinary assistant often fills the circulator role.

The Anesthetist monitors the patient's vital signs, anesthetic depth, and airway throughout the procedure, reporting any changes to the surgeon. This is typically a credentialed technician.

Scope of practice is set by each state's veterinary practice act. When in doubt, veterinary assistants should defer to the supervising technician or veterinarian rather than act beyond their training or legal authority.

Surgical Suite Zones

Surgical suites are divided into three traffic-control zones that limit contamination and reduce surgical-site infection risk.

Unrestricted Zone: The outermost area, including hallways and reception areas adjacent to the suite. Street clothes are generally acceptable here. This is where team members transition before entering cleaner areas.

Semi-Restricted Zone: Includes instrument processing, storage, and the scrub sink area. Personnel must wear surgical attire (scrub suit, surgical cap covering all hair). Traffic is limited to authorized personnel. No unnecessary talking or movement that raises airborne particles.

Restricted Zone: The operating room itself. Full surgical attire is required — scrubs, cap, mask covering nose and mouth, and shoe covers where policy requires. Only essential personnel enter. Doors remain closed during active surgery to maintain air pressure and reduce contamination.

Remember: movement between zones always goes from clean to less-clean. Never re-enter a cleaner zone without changing or re-scrubbing as required.

OSHA Bloodborne Pathogen Standard in the Surgical Environment

OSHA's Bloodborne Pathogen Standard (29 CFR Part 1910) applies to veterinary workplaces because employees face occupational exposure to blood and other potentially infectious materials (OPIM). Although the standard was written with human pathogens in mind, OSHA interprets it to cover veterinary employees.

Key requirements include:

• Exposure Control Plan: The employer must maintain a written plan, updated annually, identifying tasks where exposure may occur.
• Universal / Standard Precautions: Treat all blood and OPIM as infectious. Wear appropriate PPE — gloves, eye protection, mask, and fluid-resistant gown — whenever exposure is possible.
• Engineering Controls: Use sharps containers (puncture-resistant, leak-proof, labeled) for all needles, scalpel blades, and other sharps. Never recap needles two-handed. Use the one-handed scoop technique or a mechanical recapping device.
• Work Practice Controls: Wash hands immediately after removing gloves, after any contact with blood or OPIM, and before leaving the surgical suite.
• Hepatitis B Vaccination: Employers must offer hepatitis B vaccination to exposed employees at no cost.
• Post-Exposure Protocol: Any needlestick, cut, splash, or other exposure must be reported immediately and documented. The employer must provide follow-up evaluation.

Chemical Safety and the SDS

Surgical suites use disinfectants, anesthetic gases, sterilants, and cleaning agents — all regulated under OSHA's Hazard Communication Standard (HazCom). Every hazardous chemical in the facility must have a Safety Data Sheet (SDS) (formerly MSDS) readily accessible to all employees during every shift. The SDS binder must not be locked away.

Anesthetic gases such as isoflurane and sevoflurane require a scavenging system to capture waste gas and prevent chronic occupational exposure. Check that the scavenging system is functional before each procedure.

Eyewash stations must be immediately accessible in areas where chemical splash is possible. Know the location of the eyewash before you begin any task.

Label all chemical containers properly. Never transfer a chemical to an unlabeled container.

Safety Summary

• Announce any sterility break immediately — do not ignore or conceal it.
• Dispose of sharps in an approved sharps container; never place them in regular trash.
• Wear full PPE whenever blood or OPIM exposure is possible.
• Know where the SDS binder and eyewash station are located before starting work.
• Stay within your scope of practice; when uncertain, ask your supervising technician or veterinarian.