Surgical Nursing and Anesthesia
Core concepts
Understand the anesthesia triad - unconsciousness, analgesia, and muscle relaxation - and the stages/planes of anesthesia. Know premedication rationale (sedation, analgesia, reducing induction dose), induction agents (propofol, ketamine, alfaxalone), and maintenance (inhalant vs. injectable). Candidates must understand patient monitoring: heart rate, blood pressure, SpO2, ETCO2, temperature, and reflexes. Asepsis is central: surgical hand scrub, sterile gowning/gloving, instrument handling, and the difference between clean, clean-contaminated, contaminated, and dirty wounds. Know suture patterns, drain care, and recovery/post-op monitoring priorities (airway, circulation, temperature, pain).
Traps
Questions test who does what in the sterile field and when sterility is broken (e.g., a gloved hand touching a non-sterile surface). Distinguish local from general anesthesia and analgesia from anesthesia. Watch for species/breed sensitivities - brachycephalics and airway risk; sighthounds and drug sensitivity. Do not confuse monitoring parameters with diagnostic ones.
Worked example / rule of thumb
For patient monitoring, use the "ABC + T" framework: Airway, Breathing (rate, SpO2, ETCO2), Circulation (HR, BP, CRT, mucous membranes), Temperature. Rule of thumb: a sudden drop in SpO2 or BP during anesthesia warrants checking the airway, anesthetic depth, and fluid support before assuming equipment failure.
Study focus
Know aseptic technique sequence, the four wound classifications, common suture materials, and post-op monitoring order. Understand that recovery is a high-risk period - extubation timing and airway protection matter.