A client with chronic renal failure is prescribed calcitriol (active form of vitamin D. to manage calcium and phosphate levels. The client asks the nurse about the purpose of this medication. How should the nurse respond?

A. Incorrect. Excess production of calcium in the body is not a typical cause of bone pain in chronic renal failure.

B. Correct. Chronic renal failure can lead to impaired phosphorus excretion, resulting in elevated levels of phosphorus in the blood. High phosphorus levels can lead to bone demineralization, weakening the bones and causing bone pain.

C. Incorrect. While some medications used in the management of chronic renal failure may have side effects, frequent bone pain is not commonly associated with these medications.

D. Incorrect. Kidney dysfunction in chronic renal failure does not typically lead to low levels of calcium in the bones. Instead, it can lead to abnormalities in phosphorus levels, which affect bone health.

A. Incorrect. Applying a heating pad may provide temporary relief for muscle cramps, but it does not address the underlying cause.

B. Correct. Muscle cramps in clients with chronic renal failure can be caused by dehydration and electrolyte imbalances. Encouraging the client to increase fluid intake can help alleviate muscle cramps and maintain adequate hydration.

C. Incorrect. While calcium supplements may be prescribed in certain situations, they are not the first-line intervention for muscle cramps in chronic renal failure.

D. Incorrect. Educating the client about potassium-rich foods is important for managing potassium levels, but it is not the priority in this situation. Muscle cramps are more likely related to fluid and electrolyte imbalances rather than potassium intake.