At a Glance
Why Get Tested?
To see if your aldosterone or renin levels are abnormal; to detect hyperaldosteronism (overproduction of aldosterone) or hypoaldosteronism (underproduction of aldosterone)
When to Get Tested?
If your doctor finds an electrolyte imbalance or you develop symptoms of hyperaldosteronism, such as high blood pressure or muscle weakness
A blood sample taken from a vein in your arm or a 24-hour urine sample
Test Preparation Needed?
You may be asked to adhere to an unrestricted salt diet prior to the test or to temporarily discontinue one or more medications. Please follow any instructions you are given, as this is important to ensure the validity of test results.