ANATOMY

Detailed explanation-1: -Aldosterone signals certain organs, like your kidneys and colon, to increase the amount of sodium they send into your bloodstream or the amount of potassium released in your urine (pee). Aldosterone’s effect on sodium increase causes your body to retain water in your blood, which increases blood volume.

Detailed explanation-2: -What results from increased levels of aldosterone? increased Na+ reabsorption Na+ reabsorption is increased by aldosterone, which leads to reabsorption of more water and an increase in blood pressure.

Detailed explanation-3: -Aldosterone promotes renal sodium and water reabsorption and excretion of potassium, thus, increasing blood volume. Aldosterone secretion would cause increased plasma osmolality. Secretion of aldosterone decreases potassium levels because it causes potassium excretion.

Detailed explanation-4: -The greatest risk factor is age older than 65 years. In addition, mental or physical disability may result in impaired thirst sensation, an impaired ability to express thirst, and/or decreased access to water. Hypernatremia often is the result of several concurrent factors. The most prominent is poor fluid intake.