Aldosterone Blood Test, LC/MS/MS- Walk-In Lab, LLC


Measures aldosterone, a mineralocorticoid hormone, is essential as it regulates the amounts of electrolytes in the body.

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An aldosterone (ALD) test measures the amount of ALD in your blood. It’s also called a serum aldosterone test. ALD is a hormone made by the adrenal glands. The adrenal glands are found on top of your kidneys and are responsible for producing several important hormones. ALD affects blood pressure and also regulates sodium (salt) and potassium in your blood, among other functions.

Too much ALD can contribute to high blood pressure and low potassium levels. It’s known as hyperaldosteronism when your body makes too much ALD. Primary hyperaldosteronism could be caused by an adrenal tumor (usually benign, or noncancerous). Meanwhile, secondary hyperaldosteronism could be caused by a variety of conditions. These include:

  • congestive heart failure
  • cirrhosis
  • some kidney diseases (e.g., nephrotic syndrome)
  • excess potassium
  • low sodium
  • toxemia from pregnancy

An ALD test is often used to diagnose fluid and electrolyte disorders. These may be caused by:

  • heart problems
  • kidney failure
  • diabetes insipidus
  • adrenal disease

The test can also help diagnose:

  • high blood pressure that is hard to control or occurs at a young age
  • orthostatic hypotension (low blood pressure caused by standing up)
  • overproduction of ALD
  • adrenal insufficiency (underactive adrenal glands)