Certified Emergency Nurse (CEN) Practice Test 2026 - Free CEN Practice Questions and Study Guide

The administration of calcitonin is an effective treatment for hypercalcemia because it helps lower calcium levels in the blood. Calcitonin is a hormone produced by the thyroid gland that inhibits osteoclast activity, which decreases bone resorption and consequently reduces the amount of calcium released into the bloodstream. This is particularly beneficial in managing hypercalcemia, as it counteracts the elevated calcium levels and helps restore balance more effectively.

In contrast, the other options would not be appropriate treatments for hypercalcemia. Potassium phosphate is primarily used to treat hypophosphatemia and may not address elevated calcium levels. Thyroid hormone replacement can have adverse effects on calcium metabolism and is not a treatment for hypercalcemia. Hydration with glucose does not specifically target calcium levels and is generally not indicated in the management of hypercalcemia. Therefore, calcitonin therapy stands out as the suitable and targeted choice for effectively managing hypercalcemia.