CRCST Practice Exam

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If a biological test is performed daily, how often should a control BI be incubated?

  1. Control BI should be incubated ONCE A WEEK

  2. Control BI should be incubated ONCE A DAY

  3. Control BI should be incubated TWICE A DAY

  4. Control BI should be incubated ONCE A MONTH

The correct answer is: Control BI should be incubated ONCE A DAY

When a biological test is performed daily, it is crucial to ensure that the control Biological Indicator (BI) is incubated daily as well to maintain accuracy and consistency in the test results. By incubating the control BI once a day, any deviations or issues in the sterilization process can be promptly identified and addressed to maintain the effectiveness of the sterilization cycle. Incubating the control BI once a week, twice a day, or once a month would not provide the necessary frequency of monitoring required to ensure the reliability of the sterilization process and may lead to potential risks in patient safety.

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