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Serum or plasma concentration of albumin (using a colorimetric method)

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 help assess protein status and kidney function."]

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

Key facts at a glance

LOINC
9399-7
Short code
ENA RNP Ab Titr Ser
Synonyms
ENA RNP 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 Is This Test Done?

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

What Does a Low or High Level Mean?

Low albumin levels might indicate poor nutrition, kidney issues, or liver disease. High levels could suggest dehydration or certain medical conditions, though this is less common.

Common Conditions Monitored

Albumin tests are often used to evaluate protein loss due to kidney disease, liver cirrhosis, or severe infections. They may also be checked in patients receiving dialysis or undergoing chemotherapy.

Sample Preparation and Testing

Blood is drawn from a vein, and the sample is processed to separate serum or plasma. The test uses a colorimetric method to measure albumin concentration, often compared to a standard reference.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical significance of albumin levels includes assessing nutritional status, detecting protein-losing conditions, and guiding treatment decisions in chronic diseases like cirrhosis or kidney disease. Abnormal levels may prompt further evaluation for underlying causes.

Short name

Albumin Level

Frequently asked questions

How often should I expect this test?
The frequency depends on your health condition. Some patients need this test monthly, while others may only need it once or twice a year. Your doctor will determine the schedule based on your needs.
What can affect my albumin test results?
Factors like severe illness, dehydration, recent blood loss, or certain medications (e.g., diuretics) can influence results. It’s important to inform your doctor about all medications or conditions you have.
Can I eat or drink before this test?
Typically, you can eat and drink normally unless instructed otherwise. Some tests may require fasting, but albumin tests usually do not. Follow your healthcare provider’s specific instructions.
  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