Serum or plasma mass concentration of aldosterone
This test measures the amount of aldosterone, a hormone produced by your adrenal glands that helps regulate blood pressure and fluid balance in your body.
["Aldosterone helps control how much sodium and potassium your body retains, which can impact your blood pressure and heart function."]
Key facts at a glance
- LOINC
- 27385-4
- Short code
- GH sp18 p chal SerPl-mCnc
- Synonyms
- GH sp18 p chal SerPl-mCnc
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
Why This Test Might Be Ordered
Your doctor may recommend this test if you have symptoms like high blood pressure, low blood potassium, or signs of conditions such as primary aldosteroneism, adrenal tumors, or kidney problems. It may also be used to monitor certain medications or conditions affecting hormone balance.
What to Expect Before the Test
No special preparation is usually needed, but you may be asked to avoid certain medications or foods that could affect results, such as potassium supplements or certain diuretics. If you’re taking them, check with your doctor first.
During the Test
A small blood sample is drawn from a vein in your arm. This is a quick and typically painless procedure. The sample is then sent to a lab for analysis.
What the Results Mean
Results help doctors assess whether your hormone levels are within a healthy range. Abnormally high or low aldosterone levels may indicate underlying health issues that need further evaluation.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
High aldosterone levels may suggest conditions like primary hyperaldosteronism (Conn’s syndrome), adrenal adenomas, or certain kidney diseases. Low levels could indicate adrenal insufficiency or other hormonal imbalances. Always discuss results with your healthcare provider for personalized interpretation.
Short name
Aldosterone Level
Frequently asked questions
How does aldosterone affect my daily life?
What can cause false results?
Is this test painful?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy