Which is the highest level of infection control?

Which is the highest level of infection control?

• A. Sanitation
• B. Disinfection
• C. Sterilization
• D. Decontamination

Answer: (C)

Sterilization is the highest level of infection control because it completely destroys all forms of microbial life, including bacterial spores. Sanitation only lowers dirt and microbes to safe levels, not all life forms. Disinfection kills many pathogens but may not eliminate spores or every microorganism. Decontamination focuses on removing contaminants to make items safer to handle but doesn’t guarantee sterility. In practice, sterilization is achieved with methods like autoclaving or other proven sterilants, ensuring tools that touch sterile tissues or break the skin are completely free of life forms. In a nail setting, this is why reusable instruments that contact the nail or skin are sterilized between clients or replaced with single-use disposable items whenever possible.

Sterilization is the highest level of infection control because it completely destroys all forms of microbial life, including bacterial spores. Sanitation only lowers dirt and microbes to safe levels, not all life forms. Disinfection kills many pathogens but may not eliminate spores or every microorganism. Decontamination focuses on removing contaminants to make items safer to handle but doesn’t guarantee sterility. In practice, sterilization is achieved with methods like autoclaving or other proven sterilants, ensuring tools that touch sterile tissues or break the skin are completely free of life forms. In a nail setting, this is why reusable instruments that contact the nail or skin are sterilized between clients or replaced with single-use disposable items whenever possible.