Which clients are at risk for developing hypernatremia in the nurse's evaluation?

50-year-old with pneumonia, diaphoresis, and high fevers

Diaphoresis and a high fever can lead to free water loss through the skin, resulting in hypernatremia. Loop diuretics are more likely to result in a hypovolemic hyponatremia. Diarrhea and vomiting cause both sodium and water losses. Clients with syndrome of inappropriate antidiuretic hormone (SIADH) have hyponatremia, due to increased water reabsorption in the renal tubules.