Aldosterone Urine Test, 24-Hour

Aldosterone Urine Test, 24-Hour

Quick Overview

Used in the diagnosis and evaluation of primary aldosteronism, selective hypoaldosteronism, edematous states, and other conditions of electrolyte imbalance.

Test #229


Availability: In stock


No special preparation required.

Test Results 10-14 days. May take longer based on weather, holiday or lab delays.

Aldosterone, an adrenal cortex hormone, is the major regulator of sodium and potassium excretion. Aldosterone is vital in regulating your blood pressure. It controls how much salt and water is kept in the kidney while being responsible for the removal of potassium.

Urine aldosterone excretion is commonly increased in secondary (high renin) states of heart failure or liver or renal disease. In primary hyperaldosteronism due to autonomous adrenal secretion, urine aldosterone is increased and plasma renin is suppressed. Aldosterone excretion is reduced in Addison disease and in hyporeninemic hypoaldosteronism caused by renal disorders. The major urinary aldosterone metabolite is aldosterone-18 glucuronide. Measurement of aldosterone in urine, corrected for creatinine, provides an estimate of secretion rate over a 24-hour period.

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