A nurse in a postanesthesia care unit is caring for a client who is recovering from general anesthesia and is experiencing malignant hyperthermia. Which of the following actions should the nurse take?
A. Monitor client for rapid decrease in heart rate.
B. Administer dantrolene sodium.
C. Provide oxygen at 12 L/min via Venturi mask.
D. Infuse chilled lactated Ringer's IV.
