Medical Device Reprocessing Association of Ontario (MDRAO) Practice Exam

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What is indicated by a Type II chemical indicator in a sterilizer?

Process quality
Air-removal testing
Product safety
Temperature control

The correct answer is: Air-removal testing

A Type II chemical indicator is specifically designed to confirm that the sterilization process reached the necessary conditions required for effective sterilization, particularly in relation to air removal in steam sterilization. This indicator reacts to specific physical and chemical parameters associated with the sterilization process, such as temperature and time, but it primarily assesses whether the steam successfully penetrated the load adequately, which relates directly to the air removal testing. By ensuring that there are no air pockets that could hinder the sterilization process, Type II indicators serve as a crucial tool in validating that the sterilizer is functioning correctly and that the conditions necessary for sterilization were met. The clear focus on air removal is essential because poor air removal can lead to ineffective sterilization and potentially compromise the safety of medical devices and instruments.