Which process involves removing dirt and visible contaminants from surfaces before disinfection?

Which process involves removing dirt and visible contaminants from surfaces before disinfection?

• A. Cleaning
• B. Disinfection
• C. Sterilization
• D. Discard

Answer: (A)

Removing dirt and visible contaminants from surfaces before disinfection is cleaning. Cleaning uses soap or detergent with water and physical action to lift and wash away soil, oils, and organic matter. This step is essential because soil can shield microorganisms and interfere with how well a disinfectant works. Once the surface is clean, the disinfectant can more effectively kill or inactivate remaining pathogens. Disinfection itself reduces the number of viable microbes after cleaning, but it’s less reliable on dirty surfaces. Sterilization is a higher-level process that aims to kill all forms of microbial life and is not typically used for routine surfaces. Discarding isn’t a cleaning or disinfection process. So the process described—removing dirt and visible contaminants before disinfection—is cleaning.

Removing dirt and visible contaminants from surfaces before disinfection is cleaning. Cleaning uses soap or detergent with water and physical action to lift and wash away soil, oils, and organic matter. This step is essential because soil can shield microorganisms and interfere with how well a disinfectant works. Once the surface is clean, the disinfectant can more effectively kill or inactivate remaining pathogens. Disinfection itself reduces the number of viable microbes after cleaning, but it’s less reliable on dirty surfaces. Sterilization is a higher-level process that aims to kill all forms of microbial life and is not typically used for routine surfaces. Discarding isn’t a cleaning or disinfection process. So the process described—removing dirt and visible contaminants before disinfection—is cleaning.