What risk is associated with widespread use of alcohol-based prep on large skin areas?

• A. Systemic toxicity
• B. Flammability and skin irritation; ensure complete drying and monitor for adverse reactions
• C. No risk
• D. Allergic reaction to latex

Answer: (B)

Alcohol-based prep on large skin areas carries a real fire hazard because the solution is highly flammable. If any wet prep or vapors remain when a heat source or ignition is present, the area can ignite. That’s why allowing thorough drying before proceeding and keeping ignition sources away until the prep is completely dry is a key safety step. In addition, the solution can irritate or dry the skin; applying it over large areas increases the chance of irritation or dermatitis, so monitoring the skin for adverse reactions is important. While some systemic absorption can occur with large areas, the most immediate and controllable risk in the surgical setting is flammability and local skin irritation. Latex allergy, while important in other contexts, is not a risk tied to the alcohol-based prep itself.