- Certified Medical Device Reprocessing Technician Decontamination Processes Questions and Answers Flashcards

What is the primary purpose of enzymatic detergent in the decontamination process?

Answer: To break down organic soil such as blood and tissue

Enzymatic detergents contain specific enzymes (proteases, lipases, amylases) that break down organic matter like blood, tissue, and body fluids on instruments before further cleaning steps.

According to CSA standards, what is the recommended water temperature range for pre-soaking instruments in enzymatic solution?

Answer: Lukewarm water between 20°C and 43°C

CSA standards recommend lukewarm water (20°C to 43°C) for enzymatic solutions because temperatures above 43°C can denature the enzymes, reducing their effectiveness, while very cold water slows enzyme activity.

What is the correct sequence of steps in the decontamination workflow?

Answer: Pre-cleaning at point of use → Transport → Cleaning → Rinsing → Disinfection/Sterilization

The standard decontamination workflow follows a logical progression: pre-cleaning at point of use to prevent soil from drying, safe transport to the reprocessing area, thorough cleaning, rinsing, and then disinfection or sterilization.

What type of water should be used for the final rinse of instruments after cleaning?

Answer: Distilled or treated water meeting CSA specifications

The final rinse should use distilled, deionized, or reverse-osmosis treated water to prevent mineral deposits (spotting) on instruments and to avoid introducing contaminants that may be present in tap water.

Why must instruments with lumens receive special attention during decontamination?

Answer: Soil and biofilm can accumulate inside narrow channels where standard cleaning cannot reach

Lumened instruments have narrow internal channels where blood, tissue, and biofilm can accumulate and are difficult to reach with standard cleaning methods. They require specific brushing, flushing, and sometimes ultrasonic cleaning to ensure adequate decontamination.

What action should be taken if an instrument arrives at the decontamination area with dried-on soil?

Answer: Soak in enzymatic solution to soften the dried soil before cleaning

Dried-on soil is harder to remove and can harbor microorganisms. Soaking in enzymatic solution rehydrates and loosens the dried organic matter, making it accessible for effective cleaning without damaging the instrument surface.