What is the next step if the GAC carbon filter exceeds the acceptable limit for total chlorine?

When the GAC (Granular Activated Carbon) carbon filter exceeds the acceptable limit for total chlorine, notifying the nurse in charge to stop treatment is an appropriate next step. This action is crucial to ensure patient safety, as high chlorine levels can lead to harmful health effects.

By stopping the treatment, the nurse can take the necessary precautions to assess the situation and address the high chlorine levels effectively. This could involve testing the water for chlorine concentration, evaluating the performance of the carbon filter, and determining whether it needs to be replaced or maintained. Immediate cessation of treatment protects patients from potential risks associated with elevated chlorine exposure.

Taking further action without proper communication and assessment may lead to unintended consequences. The other options may not adequately prioritize patient safety in this scenario, making the decision to notify the nurse in charge the most responsible course of action.