Aldosterone Test FAQ
What is an Aldosterone test?
Why is an Aldosterone test important?
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Do I need to fast to take this test?
How long does it take to get test results?
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Related To The Aldosterone Test
Aldosterone Lab Test - More Information
The aldosterone test measures the aldosterone blood level.
Aldosterone is a steroid hormone produced by the adrenal glands. Known as a mineralocorticoid, it helps regulate salt and water balance in the body by helping the kidney keep sodium and excrete potassium. If the body overproduces aldosterone (primary aldosteronism), then high blood pressure with low potassium levels are often seen.
The aldosterone blood test is performed as part of an evaluation for primary hypertension. Approximately 2% of people with primary hypertension also have high aldosterone (primary hyperaldosteronism). Also, in many cases, low potassium and low direct renin levels will be seen in these situations. Body position and recent sodium intake might affect aldosterone blood test results.
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