A healthy 25-year-old man is undergoing a brief surgical procedure requiring general anesthesia. He underwent an unremarkable intubation and induction of anesthesia using IV succinylcholine and inhaled halothane. During the surgery the patient develops muscle rigidity and tachycardia, and his temperature rap- idly rises.
1) What is the mechanism of action of succinylcholine?
2) What reaction is occurring in the patient?
3) What drug should immediately be given to the patient, and what is its mechanism of action?