Aldosterone
Laboratory Tests
estimated about CNY 100-300
(estimated about USD 15-45)
24 hr
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Description
Aldosterone testing helps diagnose adrenal or kidney disorders causing high blood pressure or electrolyte imbalance; in China, the test costs ¥15–45 and ChinaMedicalHub can coordinate hospital booking and interpreter support.
Main Uses
Aldosterone testing is primarily used to diagnose and differentiate between primary and secondary hyperaldosteronism, evaluate hypertension that does not respond to conventional treatment, investigate the cause of low potassium levels (hypokalemia), and monitor the effectiveness of treatments for conditions affecting aldosterone production.
Normal Range
The normal range for aldosterone levels in the blood is typically between 3 to 15 ng/dL (nanograms per deciliter) when measured in a standing position. For a lying down (supine) position, the range is generally lower, around 2 to 8 ng/dL. These values can vary slightly depending on the laboratory and the specific method used for measurement.
Low Values - Possible Causes
Low aldosterone levels, or hypoaldosteronism, can be caused by: Addison's disease, which affects the adrenal glands; certain medications such as ACE inhibitors or angiotensin receptor blockers; congenital adrenal hyperplasia; and severe illness or trauma that impacts adrenal function.
High Values - Possible Causes
High aldosterone levels, or hyperaldosteronism, are commonly due to: primary aldosteronism (often from an adrenal gland tumor), secondary aldosteronism (caused by conditions like heart failure, liver disease, or kidney disease), dehydration, and certain medications including diuretics and oral contraceptives.