A patient in the operating room has been administered succinylcholine and is now experiencing muscle rigidity and an extremely high temperature. What should the nurse do next?

C. Prepare ice packs for placement in the patient’s axillary area.This response is crucial because the symptoms described—muscle rigidity and hyperthermia—are indicative of malignant hyperthermia, a serious reaction that can occur after the administration of succinylcholine, especially in conjunction with certain anesthetics. Immediate cooling measures, such as applying ice packs, are essential to help reduce the patient's elevated body temperature. Rationale for Other Options: A. Call the PACU nurse to prepare for prolonged ventilatory support.: While preparing for ventilatory support may be necessary later, immediate action to address hyperthermia is critical. B. Hold a prescription for dantrolene until the fever is reduced.: Dantrolene is the antidote for malignant hyperthermia and should be administered as soon as possible rather than held. D. Determine if prescribed antibiotics were administered preoperatively.: This action is not relevant to the immediate management of malignant hyperthermia.