Spaulding classification, EPA-registered disinfectants, blood spill response, and equipment decontamination
In a controlled hospital environment, environmental services staff handle cleaning and disinfection. In home care, the clinician is responsible for decontaminating their own equipment and managing contaminated surfaces. Understanding the principles of cleaning and disinfection — and applying them correctly in an uncontrolled home environment — is a non-negotiable infection control competency.
Three levels of decontamination are applied based on the item's infection risk (Spaulding classification). Cleaning (soap, water, and friction) physically removes soil and microorganisms — it is always the first step. Disinfection kills most pathogenic microorganisms (but not necessarily all spores) using chemical agents. Sterilization destroys all microbial life including spores.
Critical items (contact sterile tissue or the vascular system: needles, surgical instruments) require sterilization. Semi-critical items (contact mucous membranes or non-intact skin: respiratory equipment, thermometers) require high-level disinfection. Non-critical items (contact intact skin: stethoscopes, blood pressure cuffs, commodes) require low-level disinfection. In home care, most equipment falls into the non-critical or semi-critical category.
Only EPA-registered disinfectants should be used for healthcare environmental decontamination. The product label specifies: the organisms it is effective against, the required concentration (dilution), and the contact time (how long the surface must remain visibly wet). Using a disinfectant at the wrong concentration or wiping the surface dry before the contact time is complete renders it ineffective. Common home care products: quaternary ammonium compounds (Lysol, hospital-grade wipes), sodium hypochlorite (bleach solutions), and hydrogen peroxide-based products.
Respond to blood spills systematically: don gloves (and other appropriate PPE for the spill size). Remove the bulk of the spill using absorbent disposable material (paper towels, disposable cloths). Clean the area with detergent and water. Apply an EPA-registered disinfectant — a 1:10 dilution of household bleach (approximately 1/4 cup bleach per gallon of water) is effective for blood spills on hard surfaces. Allow the full contact time (typically 1–5 minutes for bleach). Dispose of contaminated materials in a sealed bag. Remove gloves and perform hand hygiene.
All reusable client care equipment must be cleaned and disinfected between clients. This includes stethoscopes, blood pressure cuffs, pulse oximeters, thermometers, and any other equipment that contacts the client or their environment. Carry EPA-registered disinfectant wipes in your clinical bag and decontaminate equipment before packing it for the next visit. Document equipment decontamination practices as part of your agency's infection control program.
Complete this 5-question quiz with 80% or higher to earn your CEU credit for this lesson.