Which area(s) should be included in skin preparation around the planned incision?

• A. The entire body
• B. The incision site only
• C. The incision site plus a surrounding antiseptic zone
• D. The surrounding antiseptic zone only

Answer: (C)

Skin prep aims to lower the microbial load on the skin at and around the planned incision. Cleaning the incision site and extending the antiseptic zone outward creates a protective perimeter so that any bacteria near the wound are reduced before exposure, reducing the risk of contamination during incision, instrument handling, and draping. Preparing only the incision site leaves surrounding skin where bacteria can still reach the wound margins, while prepping the entire body is unnecessary and can cause irritation and wasted time. Use friction to clean from the incision outward to the surrounding zone and allow the antiseptic to dry completely before draping.