Historically, autoclave sterilization was used in PMU but is not used now due to disposable safety.

• A. It was used in the past and is not used now due to disposable safety
• B. It is currently standard in all clinics
• C. It was never used
• D. It is illegal to use

Answer: (A)

This question tests how sterilization practices in PMU have evolved and why safety practices favor disposables. An autoclave uses high-pressure steam to sterilize reusable instruments. Historically, PMU settings used autoclaving to reprocess tools after use.

Over time, a push toward disposable, single-use tools and barriers has increased for safety and efficiency. When items are designed to be used once and then discarded, the risk of cross-contamination is reduced and there’s less need to rely on reprocessing every instrument. That’s why the statement that autoclave sterilization was used in the past but isn’t used now because of disposable safety aligns with current practice shifts.

The other options contradict this real-world pattern: autoclaving isn’t described as standard in all clinics, it isn’t accurate to say it was never used, and autoclaving isn’t illegal.