Serum or plasma concentration of albumin (total protein component)
Albumin is a key protein in your blood that helps maintain fluid balance and supports immune function. Your doctor may check it to assess overall protein status or detect conditions like malnutrition or kidney disease.
["Albumin helps regulate fluid balance and supports immune health; low levels may signal malnutrition or kidney issues."]
Key facts at a glance
- LOINC
- 36550-2
- Short code
- XR Abd 1V
- Synonyms
- XR Abd 1V
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- xr
- 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 Albumin Levels Matter
Albumin plays a vital role in keeping fluids where they need to be in your body. It also helps transport important substances like hormones and medications. Low albumin can indicate problems like malnutrition, liver disease, or kidney problems, while high levels may sometimes suggest dehydration or certain medical conditions.
What Can Affect Albumin Levels?
Several factors can influence albumin levels, including diet (especially protein intake), chronic illnesses like kidney disease or liver disease, infections, inflammation, or medications. Stress, pregnancy, or recent blood loss can also temporarily affect results.
Common Reasons for Testing
Doctors may order albumin tests to check for malnutrition, kidney function, liver health, or to monitor conditions like chronic kidney disease, heart failure, or severe infections. It’s also sometimes included in general health screenings.
What to Expect During the Test
A simple blood draw is used to test albumin levels. You’ll likely have a small needle inserted into your arm, and a small amount of blood will be collected. The test is quick and usually done in a lab. No special preparation is needed, but let your doctor know if you’re on blood thinners.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Albumin Level
Frequently asked questions
What does a low albumin level mean?
What does a high albumin level mean?
How often should I get 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