What is the difference between cleaning, disinfection, and sterilization?

Prepare for the Nurse Aide I Module B – Infection Prevention Test. Leverage multiple choice questions, detailed flashcards, and comprehensive explanations. Ensure your readiness for the exam!

Cleaning removes visible soil and debris and does not by itself kill most microorganisms. Disinfection uses chemical or other methods to reduce the number of viable pathogens to a level deemed safe, but it does not guarantee that every microorganism, especially spores, is gone. Sterilization aims to destroy all forms of microbial life, including spores, on inanimate objects. In practice, you clean first to remove soil, then disinfect surfaces that could spread infection, and sterilize instruments that will contact sterile areas of the body or mucous membranes. For example, washing a countertop is cleaning, wiping a surface with a disinfectant is disinfection, and autoclaving surgical instruments is sterilization.