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Serum or plasma albumin concentration

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

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.

Quick summary

["Albumin levels help identify health risks like malnutrition or organ damage."]

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

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?
Low albumin can result from conditions like malnutrition, kidney disease, liver problems, or chronic inflammation. It may also appear after surgery, severe infections, or burns. Lifestyle factors, such as poor diet or excessive alcohol use, can also contribute.
What causes high albumin levels?
High albumin levels are less common but can occur with dehydration, certain genetic disorders, or conditions that cause excessive protein production in the body. Rarely, it may be linked to kidney disease or metabolic issues.
Can diet affect albumin levels?
Yes, diet plays a role. Eating enough protein-rich foods (like lean meats, eggs, and legumes) helps maintain normal albumin levels. Chronic malnutrition or eating disorders can lead to low albumin. Your doctor may recommend dietary changes if needed.
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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