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Human Albumin (Serum) Concentration

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

Albumin is a protein made by your liver that helps maintain fluid balance in your body and supports the immune system. Low levels may indicate liver disease, kidney problems, or malnutrition.

Quick summary

["Albumin helps regulate fluid balance and immune function; check levels if you have symptoms like swelling or fatigue."]

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

Key facts at a glance

LOINC
31535-8
Short code
Hu Ab Ser-aCnc
Synonyms
Hu Ab Ser-aCnc
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 Albumin Levels Matter

Albumin is crucial for transporting nutrients, maintaining blood pressure, and supporting the immune system. Your body produces it in the liver, and it circulates in your bloodstream. Low albumin can signal underlying health issues, such as liver disease or kidney problems, while high levels may rarely indicate dehydration or certain medical conditions.

What Causes Changes in Albumin Levels?

Low albumin levels can result from conditions like chronic liver disease, kidney failure, malnutrition, or severe infections. Certain medications, such as diuretics, may also affect albumin production. High albumin levels are less common but can occur with dehydration or in response to stress.

Common Symptoms and Conditions

Symptoms of abnormal albumin levels may include swelling (edema), rapid weight gain, fatigue, or frequent infections. Albumin levels are often checked as part of a broader blood test to assess overall health, liver function, or kidney health.

How Is Albumin Tested?

This test involves drawing blood from a vein in your arm. The blood sample is sent to a lab, where it is analyzed to measure the concentration of albumin. The test typically takes a few minutes, and results are usually available within 24 to 48 hours.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance of Albumin Levels

Short name

Albumin Level

Frequently asked questions

What does my albumin level tell me about my health?
If your albumin level is lower than expected, your doctor may investigate potential causes like liver disease, kidney problems, or poor nutrition. If it’s higher, further evaluation may be needed to rule out conditions like dehydration or stress responses.
How often should I get this test?
Your doctor will determine how often you need this test based on your medical history, symptoms, and overall health. Regular monitoring may be recommended if you have conditions like liver disease or kidney problems.
Can diet or lifestyle changes affect albumin levels?
Yes, diet and lifestyle can influence albumin levels. Eating a balanced diet rich in protein and avoiding excessive alcohol may help maintain healthy levels. If you suspect malnutrition or liver/kidney issues, discuss dietary changes with your healthcare provider.
  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