What term describes the absence of viable microorganisms on a surface or item?

• A. Antisepsis
• B. Asepsis
• C. Sterilization
• D. Disinfection

Answer: (B)

Asepsis describes the state of being free from viable microorganisms on a surface or item. It’s the condition practitioners aim for by using sterile technique and appropriate cleaning and barrier methods to prevent contamination and infection. Antisepsis applies antimicrobial action to living tissue (not the item itself), so it isn’t the right fit for a surface. Disinfection reduces most pathogens on inanimate surfaces but may not eliminate all microorganisms or spores, so it doesn’t guarantee complete absence. Sterilization is the process that removes all forms of life, but the question is asking for the term that describes the absence, not the method to achieve it.