Final answer:
The cuffs on a gown are considered unsterile after donning because they are absorbent and collect moisture, which can compromise the sterility.
Step-by-step explanation:
Once a surgical technologist dons a gown, the cuffs on the gown are considered unsterile because they are absorbent and collect moisture. This is the case because, in a sterile environment, moisture can act as a conduit for bacteria to travel, potentially compromising the sterility of the gown and, by extension, the sterile field. It is critical to maintain aseptic technique to prevent contamination and the risk of infection to the patient. Thus, when wearing sterile gloves, the cuffs of the gown are covered by the gloves to minimize the risk of contamination.