What is the goal of allowing the skin prep solution to dry before draping the patient?

Allowing the skin prep solution to dry before draping the patient is crucial to preventing ignition of trapped fumes under the drapes. Many skin antiseptics are flammable, especially those containing alcohol-based components. If the solution is not allowed to fully dry, the vapors can accumulate beneath the surgical drapes, creating a risk for combustion if an ignition source, such as electrosurgical equipment or lasers, is introduced during the procedure. By ensuring the solution has dried completely, the risk of ignition is significantly minimized, thereby enhancing overall surgical safety.

This practice also indirectly contributes to other considerations, such as infection prevention and maintaining a clear surgical field, but the primary goal linked to drying the solution specifically revolves around fire safety in the operating room environment.