Serum or plasma albumin concentration
Albumin is a protein found in your blood that helps maintain fluid balance and supports immune function. Your doctor may order this test to check for nutritional deficiencies, kidney disease, or liver problems.
["Albumin levels help identify health risks like malnutrition or organ damage."]
Key facts at a glance
- LOINC
- 81426-9
- Short code
- AE Stn BldV
- Synonyms
- AE Stn BldV
- Category
- chemistry
- Sample
- whole-blood
- Container
- Lavender-top (EDTA)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- acetate-esterase-stain
- Specimen volume
- 3 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h
- Hemolysis max
- 0
- Lipemia max
- 0
- Icterus max
- 0
- TAT
- 4–24 hours
- Order
- routine
Why Albumin Levels Matter
Albumin is crucial for keeping fluids where they need to be in your body. Low levels can signal problems like poor nutrition, kidney disease, or liver issues, while high levels might indicate dehydration or certain medical conditions. Your doctor may also use albumin to monitor chronic diseases like heart failure or cirrhosis.
What to Expect Before the Test
No special preparation is needed for this test. You’ll have a small needle inserted into your arm, and a blood sample will be drawn. The test is quick and usually done in a lab setting. If you’re on blood thinners, let your doctor know before the test.
How the Test Works
Blood is collected and sent to a lab, where it’s analyzed to measure the amount of albumin protein. The lab uses a method called **immunoassay** (often abbreviated as IA) to detect and quantify albumin levels accurately.
What the Results Mean
Results are compared to a general reference range, but exact values can vary by lab. Low albumin may indicate malnutrition, kidney or liver disease, or inflammation. High levels could suggest dehydration or certain genetic conditions. Your doctor will discuss your results in the context of your overall health.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Albumin
Frequently asked questions
What causes low albumin levels?
What causes high albumin levels?
Can diet affect albumin levels?
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