Disinfection versus sterilization: which statement is correct?

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!

Disinfection and sterilization represent different levels of microbial control. Disinfection lowers or eliminates many pathogens on inanimate surfaces, reducing the risk of infection, but it does not guarantee that all microorganisms are gone, and spores may remain. Sterilization is the process that aims to destroy or completely inactivate all forms of microbial life, including spores, usually using heat or chemical sterilants. That difference is why sterilization is required for instruments that must be completely free of viable organisms, while disinfection is appropriate for many surfaces and a lower level of risk.

The other statements aren’t accurate: disinfection does not reliably kill spores, so it’s not the same as sterilization; sterilization is not limited to air and is not merely about reducing pathogens; and disinfection and sterilization are distinct processes, not the same.