A nurse is providing preoperative teaching to a client who is to undergo a transurethral resection of the prostate to treat benign prostatic hypertrophy. Which of the following client statements should the nurse identify as an understanding of the teaching?

A) Administer dantrolene sodium IV: Dantrolene sodium is the treatment of choice for malignant hyperthermia. It acts as a muscle relaxant by inhibiting calcium release from the sarcoplasmic reticulum in skeletal muscles, which helps to halt the hypermetabolic crisis.

B) Monitor client for rapid decrease in heart rate: While monitoring vital signs is essential, a rapid decrease in heart rate is not a typical manifestation of malignant hyperthermia. The nurse should primarily focus on interventions to reduce hyperthermia and stabilize the client's condition.

C) Infuse chilled lactated Ringer's IV: Infusing chilled IV fluids can help lower the body temperature in malignant hyperthermia. However, this intervention is supportive and secondary to the administration of dantrolene sodium, which directly addresses the underlying pathophysiology.

D) Provide oxygen at 12 L/min via Venturi mask: Providing high-flow oxygen is necessary to manage hypoxia and metabolic acidosis associated with malignant hyperthermia. Nonetheless, this action is secondary to administering dantrolene sodium, which is crucial to stopping the hyperthermic crisis.

A) Diarrhea: Metabolic alkalosis is more likely to be associated with constipation rather than diarrhea. Diarrhea is typically a cause of metabolic acidosis due to the loss of bicarbonate in stool, rather than a result of metabolic alkalosis.

B) Bradycardia: Bradycardia is not a typical manifestation of metabolic alkalosis. Alkalosis can lead to arrhythmias, but it generally does not cause a slow heart rate. Instead, tachycardia might occur as the body compensates for the altered acid-base balance.

C) Tinnitus: Tinnitus is not a common symptom of metabolic alkalosis. It is more often associated with aspirin toxicity or other conditions affecting the auditory system, rather than changes in acid-base balance.

D) Tetany: Tetany is a common manifestation of metabolic alkalosis. The alkalosis causes a decrease in ionized calcium levels, which increases neuromuscular excitability and can lead to muscle cramps, spasms, and tetany. This is a key sign for nurses to monitor as it indicates significant electrolyte disturbances associated with the alkalotic state.