Malignant hyperthermia Quiz: Ace Your Exams
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A 66-year-old man undergoes a left total knee replacement, and sevoflurane is used to maintain anesthesia. Forty-five minutes into the procedure, the patient starts over-breathing the ventilator. Temperature is 39.1 °C (102.3 °F), pulse is 126/min, respirations are 26/min, blood pressure is 136/82 mmHg, and oxygen saturation is 100% on the ventilator. On examination, the patient is diaphoretic, and the muscles are rigid. End-tidal CO2 is elevated. The procedure is stopped, dantrolene is given, and cooling measures are initiated. The ventilator settings are adjusted to assist in hyperventilation. An ECG is obtained, showing normal sinus rhythm, peaked T-waves, and QRS complex widening. Laboratory studies are listed below. What is the most appropriate next step in management?
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