What action must be taken if chlorine levels are found to exceed the permissible limit during water testing?

The action required when chlorine levels exceed permissible limits during water testing is to perform an immediate water purge. This step is essential because high chlorine levels can compromise the safety and health of patients undergoing dialysis.

Exceeding chlorine limits indicates potential harm to patients, and a water purge helps remove contaminated water quickly from the system. It serves to protect patients from the adverse effects of chlorine, which can cause serious health issues.

While retesting can be part of a broader protocol, it follows the immediate action of purging the water system. Addressing the problem at its source by purging ensures that there is no risk of exposure during subsequent treatments. This prioritization of patient safety guides the immediate necessity of conducting a water purge.