Practice Quiz

CNOR Operating Room Nursing

Category - Disinfection

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What is the purpose of aeration for items undergoing gas sterilization?
  1. To air-dry the materials and make sure they do not contain moisture before use.
  2. To allow for the release of toxic substances from the surface of the instruments.
  3. To replace the gas at the end of the cycle with humidified air, saturating the instruments before drying.
  4. To instill a protective covering over the instruments, rendering them safe to use in the next procedure.
Explanation
Answer: B-Aeration is done to allow for the release of toxic substances from the surface of the instruments. Aeration is necessary following chemical sterilization with ethylene oxide, which may produce toxic substances when combined with moisture during the sterilization process. Aeration is done in a chamber for a period of at least eight hours; however, additional manufacturing guidelines apply to various products.
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