Sanitation, Infection Control & Safety Practice Questions

Explanation: Sterilization destroys all microbial life including bacterial spores, using an autoclave (steam under pressure), dry heat oven, or chemical sterilant. Disinfection destroys most pathogens (but not all spores) using EPA-registered disinfectants. Sanitization reduces microbial counts to safe levels. In esthetic settings, most implements are disinfected, not sterilized, unless they penetrate the skin.

Explanation: The Spaulding Classification system categorizes medical/esthetic items by infection risk: Non-critical (contact intact skin only) → sanitization/low-level disinfection; Semi-critical (contact mucous membranes) → high-level disinfection; Critical (penetrate skin or sterile tissue) → sterilization. Lancets and any implement that breaks the skin are critical items and must be single-use or sterilized.

Explanation: Proper handwashing remains the single most effective method of infection control. The CDC recommends washing hands with soap and water for at least 20 seconds. Gloves supplement but do not replace handwashing. UV sterilizer boxes have not been proven to reliably sterilize implements and should not be relied upon as a primary sterilization method.

Explanation: The Environmental Protection Agency (EPA) regulates disinfectant products (germicides, fungicides, virucides) sold in the United States. Disinfectants used in salons must be EPA-registered and used according to label directions. OSHA regulates worker safety (bloodborne pathogens standard, Hazard Communication). The FDA regulates cosmetics and drugs. State cosmetology boards set specific requirements for salon disinfection.

Explanation: OSHA's Bloodborne Pathogen Standard requires Universal Precautions (also called Standard Precautions) — treating all blood, OPIM (other potentially infectious materials), and body fluids as if they are infected with HIV, HBV, or HCV. This includes wearing gloves whenever there is potential for contact with blood or OPIM, proper disposal of sharps, and having an exposure control plan.

Explanation: Reusable metal implements (comedone extractors, scissors, tweezers) must be cleaned of debris then fully immersed in an EPA-registered disinfectant for the required contact time between clients. Single-use items are discarded.

Explanation: If a client presents with signs of a contagious skin condition (impetigo, ringworm, herpes simplex outbreak) discovered during the service, the esthetician must stop service immediately and refer the client to a physician. Continuing service risks spreading the condition.

Explanation: Gloves provide a barrier against bloodborne pathogens (if the skin is punctured during extraction) and protect both parties from cross-contamination. OSHA Bloodborne Pathogen Standards require gloves when contact with blood or body fluids is reasonably anticipated.

Explanation: Reusable facial brushes and applicators must be cleaned (removing all product) and then disinfected according to state board regulations or replaced with single-use alternatives. Many states require single-use applicators for product application.

Explanation: Most state esthetics boards permit estheticians to perform superficial chemical exfoliation with low-concentration AHAs and BHAs. Medium to deep peels (phenol, high-percentage TCA) require physician oversight or are outside esthetics scope entirely.