Infection Control, Sanitation, and Safety
This domain tests whether you can break the chain of infection at a working nail station and protect yourself from chemical, electrical, and ergonomic hazards. Items here are practical: what you do with an implement between two clients, and what you do when something goes wrong.
Cleaning, disinfection, sterilization
- Cleaning - soap and water or an ultrasonic unit removes visible debris. It always comes first; disinfectants do not penetrate dirt, and a dirty tool is a failed tool.
- Disinfection - an EPA-registered hospital disinfectant destroys most pathogens on nonporous surfaces. Use a tuberculocidal product where blood or body fluid contact is possible.
- Sterilization - destroys all microbial life including spores. It is not required for standard nail implements, which never penetrate skin.
Station rules
- Wash hands with liquid soap before and after every client; sanitize the client's hands too.
- Porous items - files, buffers, wooden pushers, cotton, foam separators - are single-use. They cannot be disinfected and must be discarded or given to the client.
- Metal nippers, pushers, and bits: scrub, dry, then fully immerse in disinfectant for the label contact time, usually around ten minutes.
- UV cabinets, quat sprays, and "sanitizing" wipes are not disinfection.
- Wear gloves and eye protection for blood spills; stop the service, disinfect, double-bag waste, and document.
Worked example. A metal cuticle nipper falls on the floor. You pick it up, spray it, wipe it, and return it to the tray. Why is this wrong? Spray-and-wipe fails three ways: debris was not removed first, the tool was never immersed for the full contact time, and the spray may not be a hospital disinfectant. Correct sequence: set it aside as contaminated, finish with a spare, then scrub, dry, immerse, and store dry.
Traps that cost marks: treating a UV cabinet as a sterilizer; disinfecting a porous buffer; skipping handwashing because gloves are worn; storing disinfected tools in a damp towel.