SterilizationCâu 45 / 100
Why must every ethylene oxide load undergo an aeration phase before items are released?
a.Residual ethylene oxide absorbed into plastics and rubber is toxic and must be driven off to protect patients and staff
b.Aeration completes the microbial kill that the exposure phase started
c.Aeration restores the humidity that was removed during the cycle
d.Aeration is required only for loads that contain implants
Giải thích
Ethylene oxide is a recognized carcinogen and irritant that is absorbed by polymers, so mechanical aeration at elevated temperature is required to reduce residuals to safe levels before handling or patient contact. Aeration times of about 8 to 12 hours or more are typical and are set by the device and sterilizer manufacturers. The kill occurs during exposure, not aeration, and the requirement applies to every load regardless of contents.
Trích dẫn luật: OSHALuyện miễn phí toàn bộ 100 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- Which practice regarding IUSS and implants is correct?
- A typical IUSS gravity cycle for nonporous metal instruments only is 270 degrees F (132 degrees C) for 3 minutes. What changes when the item is porous, cannulated, or has a lumen?
- A surgeon sends a heat-sensitive device with a long narrow lumen and asks whether it can be processed with ethylene oxide. Which statement describes ethylene oxide sterilization?
- A tray wrapped in a cellulose-based (paper) wrapper is about to be loaded into a hydrogen peroxide gas plasma sterilizer. What is the problem?
- What are the byproducts of a hydrogen peroxide gas plasma sterilization cycle, and what does this mean operationally?
- An ozone sterilization system is being introduced. Which statement about ozone sterilization is accurate?
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