CNOR: Electrosurgery & Fire Safety

The efficacy of alcohol-based surgical hand rubs depends on applying the correct volume to ensure the hands remain wet for the manufacturer-recommended duration. Using a substantially smaller volume causes the product to dry too quickly, meaning the hands will lack sufficient antimicrobial contact time to achieve the necessary log reduction in resident and transient flora. Excessive skin irritation (Option A) is more commonly associated with applying too much product or failing to let it dry completely, rather than using too little. A rebound in microbial count (Option B) occurs over several hours during the procedure, but the immediate failure here is the initial reduction. Glove adherence (Option C) happens when hands are still wet, whereas this scenario explicitly states the product dried completely within ten seconds.

To perform effective CPR, the patient must be supine. When removing a patient from lithotomy, it is critical to lower both legs simultaneously to prevent hip dislocation and minimize sudden hemodynamic instability. Option B is the safest and most effective action. Option A is incorrect because lowering one leg at a time creates uneven pelvic stress, risking musculoskeletal injury. Option C is a common misconception; while elevating legs can transiently increase venous return, leaving them in high stirrups severely impedes the physical mechanics of chest compressions and restricts diaphragmatic movement. Option D is incorrect because keeping the legs elevated without stirrup support risks dropping the extremities and still fails to provide the flat, supine posture required for high-quality resuscitation.

Accommodating spiritual items is essential in perioperative care. A non-metallic string on the wrist does not interfere with the surgical site for a cholecystectomy or pose a burn risk with electrosurgery, unlike metal jewelry. Taping it securely prevents snagging and contamination. Removing or cutting it violates the patient's spiritual practices, while placing it on the sterile backtable compromises the sterile field.

A sudden flash of light and smoke indicate an active airway fire. The absolute priority is to halt the fire triad by removing the fuel and oxidizer. The team must disconnect the circuit and remove the tube immediately, followed by stopping the flow of airway gases. Option A is incorrect as a primary step; while saline may be poured into the airway to extinguish residual smoldering after extubation, leaving the burning tube in place causes severe thermal injury. Option B is dangerous because increasing oxygen feeds the fire. Option C is a potential post-event medical management step to reduce edema, but it does nothing to extinguish the active fire.

During an operating room fire, shutting off medical gases is critical to prevent fueling the flames. However, this action must be carefully coordinated because it immediately removes life-sustaining oxygen from the patient. Option B is correct because the circulating nurse (or charge nurse) typically shuts off the zone valves, but only after coordinating with anesthesia to ensure the patient is transitioned to a self-inflating manual resuscitation bag on room air. Option A is incorrect because the scrub nurse must remain focused on the sterile field and patient. Option C is incorrect because the anesthesia provider must focus entirely on managing the patient's airway and ventilation during the transition. Option D is incorrect because the fire alarm must be sounded immediately, long before shutting off medical gases is considered or executed.