CRCST Practice Exam 2026 – Complete Study Resource

BI PCD (Biological Indicator Process Challenge Device) will be used for routine sterilizer efficacy monitoring. BI PCDs contain live spores that are more resistant to the sterilization process than the common microorganisms found on medical devices. By placing a BI PCD in each sterilization cycle, the effectiveness of the sterilization process can be verified. Ethylene Oxide is a type of sterilization method, not a monitoring tool. Chemical indicators are used to validate that items have been exposed to the sterilization process, but they do not provide direct evidence of the process's effectiveness. Steam is a sterilization method, not a monitoring tool.