During a competency review, a technician is asked to explain why cleaning is considered the single most important step in instrument reprocessing. Which answer is correct?

解析

Blood, tissue, and biofilm form a physical barrier that sterilant cannot penetrate, so any organism protected under residual soil may survive a technically correct sterilization cycle. Cleaning itself does not kill spores; it removes and reduces bioburden so the sterilant can work. Indicators monitor the process and cannot compensate for poor cleaning, and every reusable device requires cleaning regardless of its Spaulding classification.