24-hour urinary aldosterone excretion rate

Normal values range from 6 to 25 mcg/24 hours. (This depends on the amount of sodium excreted by the body. The greater the amount of sodium, the lower the level of aldosterone.) Normal value ranges may vary slightly among different laboratories.

Note: mcg/24 hr = micrograms per 24 hours

Greater than normal levels of aldosterone may indicate:

• Conn's syndrome (aldosterone-secreting adenoma)
• Bilateral adrenal hyperplasia
• Primary aldosteronism
• Secondary aldosteronism due to a variety of causes including:
  • Diuretic abuse
  • Laxative abuse
  • Cirrhosis
  • Heart failure

Email this page  Printer friendly  Bookmark this page