NIC Esthetician Written ExamSafety and Infection ControlMedium
Which of the following is the highest level of decontamination and is required for tools that are intended to penetrate the skin or otherwise enter normally sterile areas of the body?
- ADisinfection
- BSterilization
- CSanitation
- DAntisepsis
Show answer & explanationAnswer & explanation
Correct answer: B. Sterilization
Sterilization is the highest level of decontamination, destroying all microbial life, including spores. It is essential for tools that penetrate the skin or enter sterile body areas to prevent serious infections. Sanitation and disinfection reduce pathogens but do not eliminate all spores.
Why the other options are wrong
- A. Disinfection kills most microorganisms but not bacterial spores, and is suitable for non-porous surfaces and tools that don't penetrate skin.
- C. Sanitation is the lowest level, primarily cleaning to reduce pathogens, not eliminate all microbial life.
- D. Antisepsis is the application of agents to living tissue to reduce microorganisms, distinct from sterilizing inanimate objects.
Sterilization
The process that completely destroys all microbial life, including spores, on an object or surface, typically achieved through heat (autoclave) or chemical sterilants.
- Highest level of decontamination.
- Required for critical items that penetrate sterile tissue.
- Eliminates bacteria, viruses, fungi, and spores.
- Common methods include autoclaving.
Memory trick: S-D-S: Sanitation, Disinfection, Sterilization, increasing power.