What is the minimum exposure time to achieve sterilization for wrapped items in a gravity-displacement steam sterilizer operating at 250 degrees F (121 degrees C)?

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Multiple choice — select the best answer

A3 minutes
B30 minutes
C15 minutes
D10 minutes

✓ Correct answer: B. 30 minutes Gravity-displacement steam sterilization at 250 degrees F (121 degrees C) typically requires a 30-minute exposure for wrapped items, because air removal is slower than in a prevacuum cycle. Higher temperatures (270 degrees F) shorten the required time.

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What is the minimum exposure time to achieve sterilization for wrapped items in a gravity-displacement steam sterilizer operating at 250 degrees F (121 degrees C)?

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