What action should be taken if a Personnel Contamination Monitor alarms?

When a Personnel Contamination Monitor alarms, it is crucial to exit the area using the same route that was taken upon entering. This action helps ensure that individuals do not inadvertently spread contamination. The monitor's alarm indicates that there may be radioactive contaminants present, and retracing one’s steps provides a controlled path that is familiar, reducing the risk of cross-contamination and allowing for any potential contamination to be managed appropriately.

Using the same exit route also aids in maintaining the integrity of the surrounding area and allows for better tracking of individuals who may need to be monitored for decontamination purposes. The emphasis is on safety and following established protocols to mitigate risks associated with contamination.