Medical Assistant Certification (MAC) AMCA Practice Exam

What term is used for the complete destruction of all forms of microbial life?

1. Disinfection

2. Sanitization

3. Sterilization

4. Antisepsis

The correct answer is: Sterilization

The term that signifies the complete destruction of all forms of microbial life is sterilization. This process goes beyond simply reducing the number of microorganisms; it ensures that all bacteria, viruses, fungi, and spores are eliminated from the surface or item being treated. This level of microbial control is critical in medical settings, where the risk of infection must be minimized, such as in the sterilization of surgical instruments. Disinfection, in contrast, refers to the elimination of most pathogenic microorganisms but does not necessarily kill all spores. Sanitization aims to reduce the number of microbes to a safe level, which is often less stringent than what sterilization requires. Antisepsis involves the application of antimicrobial agents to living tissues to reduce the risk of infection but does not result in the complete destruction of all microbial life. Thus, sterilization is the only term that accurately reflects the total eradication of all types of microbes.