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Serum or plasma concentration of albumin (substance concentration)

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

This test measures the amount of albumin, a protein found in your blood, which helps maintain fluid balance and supports immune function.

Quick summary

["Albumin levels can indicate overall protein status and kidney function."]

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

Key facts at a glance

LOINC
63266-1
Short code
ENA Jo1 Ab Fld Ql IA
Synonyms
ENA Jo1 Ab Fld Ql IA
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
ia
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 Is This Test Done?

Your healthcare provider may order an albumin test to check for conditions like malnutrition, kidney disease, liver problems, or fluid imbalances. It can also help monitor treatment progress for certain conditions.

What to Expect Before the Test

No special preparation is needed. You may have a small needle inserted into your arm or vein to draw blood. If you’re tested for plasma, your blood will be collected into a special tube that separates plasma from cells.

What to Expect During the Test

The process usually takes a few minutes. You might feel a brief pinch or discomfort, but it’s generally quick and not painful. You can resume normal activities afterward.

Possible Results and What They Mean

Lower-than-expected albumin levels might suggest poor nutrition, kidney disease, or liver problems. Higher-than-expected levels could indicate dehydration or certain medical conditions. Your results will be interpreted by your healthcare provider in the context of your overall health.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Albumin is a key protein in your blood that helps distribute fluids, supports immune function, and carries nutrients. Low albumin levels can signal underlying health issues like chronic kidney disease, liver disease, or severe infections. High levels may sometimes be seen in dehydration or certain genetic conditions. Regular monitoring can help track progress in managing conditions like malnutrition or kidney disease.

Short name

Albumin Level

Frequently asked questions

How long does it take to get my albumin test results?
Results are typically available within a few days to a week, depending on your lab’s processing time. Your healthcare provider will contact you once they have the results.
Can I eat or drink before this test?
You can eat and drink normally before this test unless your provider has specific instructions. No fasting is required.
What are some common causes of low albumin levels?
Low albumin levels can be caused by malnutrition, kidney disease, liver disease, severe infections, or conditions that cause excessive protein loss, such as burns or certain autoimmune diseases.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

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