Skip to content

Serum or plasma concentration of albumin

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 conditions like malnutrition, kidney disease, or liver problems.

Quick summary

["Albumin helps keep fluids where they need to be and supports your body’s defenses."]

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

Key facts at a glance

LOINC
63238-0
Short code
ENA Ab Fld Ql IA
Synonyms
ENA 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 Albumin Levels Matter

Albumin levels can indicate whether your body is producing enough protein or if there’s an issue with how your kidneys or liver function. Low levels might suggest malnutrition, chronic kidney disease, or liver cirrhosis, while very high levels could be linked to dehydration or certain inflammatory conditions.

What Can Affect Albumin Levels?

Several factors can influence albumin levels, including diet (especially protein intake), kidney or liver disease, infections, burns, or certain medications. Stress, pregnancy, or chronic illnesses like heart failure may also play a role.

How Is This Test Done?

A blood sample is drawn from a vein, usually in your arm. The blood is then sent to a lab where it’s analyzed to measure albumin concentration. Results are typically reported as a mass concentration (e.g., grams per liter).

What Do Results Mean?

Results are compared to a general reference range, but exact values can vary by lab. Low albumin levels may need further testing to identify underlying causes, while normal or high levels usually don’t require immediate action unless symptoms are present.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Albumin Level

Frequently asked questions

How often do I need this test?
Albumin tests are often ordered as part of routine check-ups, when symptoms like swelling, fatigue, or weight loss appear, or if you have a known condition that might affect protein levels. Your doctor will determine the best timing based on your health needs.
What are the most common causes of low albumin?
Low albumin can result from conditions like chronic kidney disease, liver disease, severe infections, or malnutrition. It may also appear in people with burns, cancer, or those undergoing certain treatments like chemotherapy.
Can diet affect albumin levels?
Yes, diet plays a key role. Eating enough protein (like lean meats, eggs, or beans) supports albumin production. Conversely, poor nutrition, especially low protein intake, can lead to lower albumin levels.
  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