Surgical Nursing

Why it matters on this exam

Aseptic-technique items have single defensible answers, which makes this domain reliable scoring if the rules are solid.

Key concepts

• Sterile field rules: only sterile items touch sterile items; the field is watched at all times; anything below waist level or out of sight is contaminated; gowns are sterile from the chest to the level of the sterile field and from gloved hand to elbow.
• Patient preparation: clip generously outside the incision, remove gross debris before scrub, alternate scrub and rinse from incision outward, and never return to the centre with a used swab.
• Instrument processing: clean before sterilising — organic debris blocks sterilisation; ultrasonic cleaning for hinged and box-lock instruments; lubricate hinges; pack with indicators.
• Sterilisation: steam autoclave parameters and their indicators, gas sterilisation with its aeration requirement, and shelf life by wrap type.
• Roles: the circulating technician opens sterile packs without contaminating them, ties gowns, adjusts lighting and records; the sterile technician does not leave the field.

Common mistakes

• Wiping a scrubbed site back toward the incision with a used swab.
• Autoclaving instruments that still carry visible organic material.

Worked example

A pack is opened and the circulating technician's sleeve passes over the open sterile field. The field is contaminated and must be replaced — proximity alone is not the test, but passing non-sterile material over an open field is.