A Patient Who Is on Hemodialysis for Chronic Kidney Disease

A patient who is on hemodialysis for chronic kidney disease is prescribed sevelamer hydrochloride (Renagel) with meals.What explanation should be provided to the patient as the primary reason the medication is being given?

A) To prevent metabolic acidosis
B) To prevent gastrointestinal ulcer formation
C) To relieve gastric irritation from excess acid production
D) To prevent damage to bones from high phosphorus levels