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Serum or plasma concentration of albumin (substance 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 problems, or liver disease.

Quick summary

["Albumin helps keep fluids in your blood vessels and supports healthy tissue function."]

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

Key facts at a glance

LOINC
14235-6
Short code
ENA Jo1 Ab Titr Ser
Synonyms
ENA Jo1 Ab Titr Ser
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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 This Test Is Done

Doctors may order an albumin test to diagnose or monitor conditions like malnutrition, kidney disease, liver disease, or chronic inflammation. It can also help assess how well your body is absorbing nutrients or if there’s fluid imbalance in your body.

What to Expect Before the Test

No special preparation is usually needed. You may have a small needle inserted into your arm or vein to draw a blood sample. If you’re concerned about needles, let your healthcare provider know so they can offer alternatives.

What the Results Mean

Low albumin levels might suggest poor nutrition, kidney or liver problems, or conditions that cause fluid to leak from blood vessels. High levels could indicate dehydration or certain medical treatments. Your doctor will interpret results in the context of your overall health.

Common Conditions Linked to Albumin Levels

Abnormal albumin levels can signal underlying health issues, such as chronic kidney disease, liver cirrhosis, severe infections, or malnutrition. It’s not a standalone test but often used alongside others to guide treatment plans.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Albumin plays a critical role in maintaining blood pressure and protein balance. Low levels can weaken your immune system and increase risks of swelling or infections, while very high levels may indicate conditions like dehydration or certain medications.

Short name

Albumin Level

Frequently asked questions

How is albumin tested?
Albumin is measured using a blood test. A healthcare professional will draw blood from your arm, and the sample is sent to a lab to analyze protein concentration. The test is quick and typically done in a doctor’s office or lab.
Will fasting affect my albumin test?
No, fasting is not required for an albumin test. Unlike some other blood tests, albumin levels are not influenced by what you eat or drink before the test.
What are typical reference ranges for albumin?
Reference ranges vary by lab and individual factors. Generally, albumin levels in blood are often reported between 3.4 and 5.4 grams per deciliter (g/dL). Your doctor will provide your specific results and explain what they mean for your health.
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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