PATHOLOGY

Detailed explanation-1: -Unless hands are visibly soiled (e.g., dirt, blood, body fluids), an alcohol-based hand rub is preferred over soap and water in most clinical situations because it: Is more effective than soap at killing potentially deadly germs on hands.

Detailed explanation-2: -Wash with soap and water when hands are visibly dirty or contaminated with proteinaceous material, or visibly soiled with blood or other body fluids, or if exposure to potential spore forming organisms is strongly suspected or proven, or after using the bathroom.