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Serum or plasma concentration of albumin (total protein component)

Published: August 9, 2026Updated: August 16, 2026

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.

Quick summary

["Albumin helps regulate fluid balance and supports immune health; low levels may signal malnutrition or kidney issues."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

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?
Low albumin can signal malnutrition, kidney disease, liver problems, or severe infections. It may also appear in cases of chronic inflammation or after major surgery. Your doctor will consider your overall health and other test results to interpret the results.
What does a high albumin level mean?
High albumin is less common but can occur with dehydration, certain genetic conditions, or in some cases of chronic kidney disease. It’s usually not a cause for concern unless accompanied by other symptoms or medical history.
How often should I get this test?
Your doctor will determine how often you need albumin testing based on your health condition. Regular monitoring may be needed if you have chronic illnesses like kidney disease or liver disease, or if you’re recovering from a serious illness or surgery.
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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