What is the appropriate sterilization cycle for an autoclave containing a basin set, a minor surgery set, and twelve towel packs?

• A. 250 degrees for 10 minutes
• B. 275 degrees for 5 minutes
• C. 270 degrees for 4 minutes at 30 psi
• D. 270 degrees for 4 minutes at 30 psi and 20 minutes drying time

Answer: (D)

The appropriate sterilization cycle for an autoclave containing a basin set, a minor surgery set, and towel packs is effectively represented by the technique described as 270 degrees for 4 minutes at 30 psi, followed by a 20-minute drying time.

This option is correct because it utilizes a specific temperature and pressure combination that ensures the effective sterilization of the varied types of instruments and packs included. The high temperature of 270 degrees allows for effective killing of microorganisms and ensuring sterility, while the pressure helps in driving the steam more effectively into the items being sterilized.

The inclusion of a 20-minute drying time is particularly crucial as it allows for moisture to evaporate completely from the packs and instruments, minimizing the risk of recontamination when handling or storing the items afterward. Without an adequate drying phase, residual moisture could lead to bacterial growth and compromise the sterility achieved during the autoclaving process.

In comparison, other temperature and time combinations do not incorporate a drying phase or do not meet the effective conditions for sterilizing all items present, especially for dense packs like towel packs and basin sets that require thorough sterilization to ensure safety during surgical procedures.