What action should a nurse take during an adverse reaction to medication?

Stopping the medication immediately and notifying the healthcare provider is the appropriate action to take during an adverse reaction to medication. This step is critical to ensure the safety of the patient, as continued administration of the medication could exacerbate the adverse effects and potentially lead to serious complications.

By halting the medication right away, the nurse helps prevent further harm while also allowing for an assessment of the patient's condition. It's essential for the healthcare provider to be informed promptly so that they can evaluate the situation and make necessary decisions regarding alternative treatments or further interventions. Quick communication of any adverse reactions aligns with best practices in patient safety and contributes to effective patient care management.