Which finding is consistent with hyperaldosteronism?

Which finding is consistent with hyperaldosteronism?

• A. Edema
• B. Hypernatremia
• C. Low blood pressure
• D. Potassium retention

Answer: (B)

Aldosterone causes the kidneys to reabsorb sodium in the distal tubules and collecting ducts, with water following that sodium. When aldosterone is elevated, more sodium stays in the body, raising serum sodium levels and expanding extracellular fluid, which can lead to higher blood pressure. This makes hypernatremia a consistent finding in hyperaldosteronism. In contrast, potassium is pushed out in the urine, leading to hypokalemia rather than potassium retention. Edema isn’t a defining feature, and low blood pressure would be unusual with excess aldosterone. So hypernatremia best fits the picture of hyperaldosteronism.

Aldosterone causes the kidneys to reabsorb sodium in the distal tubules and collecting ducts, with water following that sodium. When aldosterone is elevated, more sodium stays in the body, raising serum sodium levels and expanding extracellular fluid, which can lead to higher blood pressure. This makes hypernatremia a consistent finding in hyperaldosteronism. In contrast, potassium is pushed out in the urine, leading to hypokalemia rather than potassium retention. Edema isn’t a defining feature, and low blood pressure would be unusual with excess aldosterone. So hypernatremia best fits the picture of hyperaldosteronism.