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 belong in your body and supports your immune system."]

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

Key facts at a glance

LOINC
90228-8
Short code
ENA Ab.IgG pnl Ser
Synonyms
ENA Ab.IgG pnl Ser
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
82784
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?

Doctors may order albumin tests to diagnose or monitor conditions such as malnutrition, kidney disease, liver disease, or infections. It can also help assess how well your body is retaining fluids or responding to treatments.

What to Expect Before the Test

This test is usually done by drawing blood from a vein in your arm. You may feel a slight pinch, but it typically doesn’t cause discomfort. No special preparation is needed unless instructed by your healthcare provider.

What the Results Mean

Low albumin levels might indicate problems like poor nutrition, kidney or liver disease, or severe infections. High levels are less common but could suggest dehydration or certain medical conditions. Your doctor will interpret the results in the context of your overall health.

Common Conditions Monitored

Albumin levels are often checked in people with chronic illnesses like kidney disease, liver disease, or those recovering from surgery. It can also be part of routine blood work to monitor overall health and response to treatment.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical significance: Albumin is a key protein in the blood that helps maintain osmotic pressure, which prevents fluid from leaking out of blood vessels. Low levels can signal underlying health issues like protein loss from the kidneys, liver dysfunction, or severe infections. High levels may suggest dehydration or specific medical conditions.

Short name

Albumin Level

Frequently asked questions

What causes low albumin levels?
Low albumin can result from conditions like malnutrition, kidney disease, liver disease, or certain infections. It may also occur if your body loses protein through wounds, burns, or excessive sweating.
How is albumin tested?
Albumin is measured in a blood sample, either serum or plasma, using an automated laboratory method that detects the protein concentration.
Can diet affect albumin levels?
Yes, diet can influence albumin levels. Eating enough protein-rich foods (like lean meats, eggs, and legumes) supports normal albumin production. Severe malnutrition or inadequate protein intake may lead to low levels.
  1. 1
  2. 2
  3. 3

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