Which Hormone Causes the Kidneys to Retain Sodium and to Excrete

Question

Which hormone causes the kidneys to retain sodium and to excrete potassium?
A) ADH
B) Erythropoietin
C) Aldosterone
D) PTH

Accepted Answer

Aldosterone is a hormone secreted by the adrenal cortex that regulates electrolyte balance in the body. It acts on the kidneys to stimulate the reabsorption of sodium ions into the blood and the excretion of potassium ions into the urine. This helps to maintain proper levels of sodium and potassium in the body, which is necessary for proper nerve and muscle function.