Serum/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.
["Aldosterone helps control how much sodium and potassium your body retains, which can affect your blood pressure and heart health."]
Key facts at a glance
- LOINC
- 25949-9
- Short code
- LH sp7 p chal SerPl IRP1-aCnc
- Synonyms
- LH sp7 p chal SerPl IRP1-aCnc
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Ref low
- 1.5
- Ref high
- 9
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- st-irp
- CPT
- 83002
- 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 Is This Test Done?
Your doctor may order this test to check for conditions like primary aldosteroneism (also called Conn’s syndrome), adrenal gland tumors, or to evaluate symptoms such as high blood pressure, low potassium levels, or signs of hormonal imbalances.
What Does the Result Mean?
Higher-than-normal levels may suggest overactivity of your adrenal glands or certain kidney conditions. Lower-than-normal levels might indicate adrenal insufficiency or other hormonal disorders.
Common Conditions Monitored
This test is often used to diagnose or monitor conditions like hypertension (high blood pressure), hyperaldosteronism, or to assess kidney function and electrolyte balance.
Sample Collection and Preparation
A blood sample is taken from a vein in your arm. You may be asked to fast for a few hours before the test, depending on your doctor’s instructions. Store your sample in a cool place until it is processed.
Reference range
Follicular: 1.5-9.0 mIU/mLN/A
For females: inform if menstrual cycle status. For certain tests, timing within menstrual cycle may matter.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Clinical Significance: Aldosterone plays a critical role in regulating blood pressure and fluid balance. Abnormal levels can lead to serious health issues, including heart problems, kidney damage, or severe electrolyte imbalances.
Short name
Aldosterone Level (Serum/Plasma)
Frequently asked questions
What causes abnormal aldosterone levels?
How long does it take to get results?
Can I eat or drink before this test?
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