A client with hypermagnesemia is prescribed calcium gluconate. Which action is appropriate for the nurse to take?

Rationale: A. Calcium gluconate is the antidote for magnesium toxicity; it helps reverse the cardiac and neuromuscular effects of hypermagnesemia. B. IV fluid restriction is not appropriate; often IV fluids are given to promote magnesium excretion. C. Potassium chloride is not indicated for hypermagnesemia treatment. D. Increasing magnesium sulfate would worsen hypermagnesemia and is contraindicated.