Cleaning and Disinfection in a Hemodialysis Setting 

by John Micheal Weir, BBA, CHESP, REH

http://johnmichaelweir.com/tag/mrsa/

The process of physical cleaning of environmental surfaces using detergent (soap), water, and friction is the critical step required prior to surface disinfection. The combination of the cleaning and disinfection processes is designed to remove and kill vegetative microorganisms on surfaces. Disinfection will not be effective in the presence of dirt, blood, or other bio burden. The  goal of the cleaning step is to remove bio burden and with it, the majority of pathogens. Disinfection is designed to be a synergistic and somewhat redundant step to ensure comprehensive removal/kill of pathogens on surfaces.

The CDC’s Guideline for Disinfection and Sterilization in Healthcare Facilities, 2008, states that, “noncritical surfaces (e.g., dialysis bed or chair, countertops, external surfaces of dialysis machines) should be disinfected with an EPA-registered disinfectant unless the item is visibly contaminated with blood. In that case, an EPA registered tuberculocidal agent with specific label claims for HBV and HIV should be used.”1 the commonly used disinfectant for blood contaminated environmental surfaces is a 1:100 dilution of bleach (500–600 parts per million [ppm] free chlorine).

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