MDRAO Practice Exam 2025 – Complete Exam Prep Resource

The recommended frequency for performing a biological indicator (BI) test on a sterilizer is once each day the sterilizer is used. This practice ensures that the sterilization process is consistently effective and reliable. Biological indicators are essential tools in monitoring the efficacy of sterilization, as they contain live spores of a highly resistant microorganism that can withstand the sterilization process. By testing daily, healthcare facilities can quickly identify any issues if the sterilization cycle does not effectively eliminate microbial life.

Using BIs every day a sterilizer is in operation helps maintain high standards for infection control and patient safety. This frequent testing allows for immediate corrective actions if a sterilizer fails to perform adequately, thus minimizing risks associated with potential sterilization failures that could lead to infections. In comparison to other options, such as weekly, shift-based, or monthly testing, daily testing provides a more responsive and proactive approach to monitoring sterilization effectiveness.