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When extravasation of a vesicant occurs during infusion, the immediate response is to stop the infusion and initiate treatment according to established protocol. Vesicants are substances that can cause severe tissue damage if they leak into the surrounding tissue, so immediate action is crucial to minimize harm. Stopping the infusion prevents the further administration of the vesicant, which could exacerbate tissue injury.

Initiating treatment according to protocol usually includes measures specific to the type of vesicant involved and may involve techniques such as aspiration of the area, applying cold or heat to the site depending on the protocol, and possibly administering antidotes if indicated. Following procedures that are consistent with best practices ensures effective management and promotes healing.

This approach protects the patient from further complications and aligns with clinical guidelines for managing extravasation, reinforcing the importance of timely and appropriate nursing interventions in critical scenarios.