What is an appropriate treatment for hypercalcemia?

IV normal saline is considered an appropriate treatment for hypercalcemia because it helps to dilute the calcium levels in the blood and promote renal excretion of excess calcium. Increased hydration through IV normal saline can facilitate the kidneys' ability to process and eliminate calcium, thereby reducing serum calcium levels effectively.

In the management of hypercalcemia, ensuring adequate hydration is crucial as it not only aids kidney function but also can help lower the risk of complications such as kidney stones, which can arise from high calcium concentrations. Hypercalcemia often causes symptoms such as nausea, vomiting, and confusion, which can also be alleviated with the rehydration that IV fluids provide.

The other options provided are not appropriate for treating hypercalcemia. High calcium intake and administration of potassium chloride can exacerbate the condition, while oral magnesium does not directly address the underlying issue of elevated calcium levels. Therefore, IV normal saline stands out as the correct choice to manage hypercalcemia effectively.