Plasma Aldosterone Concentration (Mass Concentration)

Why This Test Might Be Ordered

Your doctor may order this test to diagnose or monitor conditions like primary aldosteronism (a rare disorder causing high blood pressure), adrenal insufficiency, or to check for hormonal imbalances that affect your kidneys or blood pressure. It could also be part of a broader evaluation for conditions like hypertension or kidney disease.

What to Expect Before the Test

No special preparation is usually needed, but you may be asked to avoid certain medications (like some blood pressure drugs) or foods (like salt) for a short time before testing, depending on your doctor’s instructions. You’ll typically provide a blood sample drawn from a vein in your arm.

What the Results Mean

Results are compared to standard reference ranges to determine if your aldosterone levels are too high or too low. High levels may indicate conditions like aldosteronism, while low levels could suggest adrenal gland problems or other hormonal disorders.

Common Conditions Affecting Results

Factors like stress, certain medications (such as diuretics), kidney disease, or pregnancy can influence aldosterone levels. If you’re taking medications or have recent changes in health, let your doctor know to ensure accurate interpretation of results.