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Protein (Albumin-to-Globulin Ratio) in Serum or Plasma

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

This test compares the levels of albumin and globulin proteins in your blood, which can help assess overall protein balance and potential health issues.

Quick summary

["Measures protein balance to identify conditions affecting protein synthesis or breakdown."]

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

Key facts at a glance

LOINC
72079-7
Short code
DRYWEIGHTORDERPRESENT
Synonyms
—
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
esrd
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

What Is Albumin and Globulin?

Albumin is a key protein produced by your liver that helps maintain fluid balance in your body. Globulin proteins, which include antibodies and other proteins, support immune function and blood clotting. This ratio can give insight into how well your liver and immune system are functioning.

Why Might This Test Be Ordered?

Your doctor may order this test to evaluate conditions like liver disease, kidney problems, malnutrition, or immune system disorders. It can also help monitor chronic conditions like chronic kidney disease or inflammatory diseases.

How Is This Test Performed?

A blood sample is drawn from a vein, typically in your arm. The sample is sent to a lab where it is analyzed to measure albumin and globulin levels separately. The ratio is then calculated.

What Are Common Causes of Abnormal Results?

High albumin-to-globulin ratios may suggest liver disease, malnutrition, or chronic kidney disease. Low ratios could indicate liver dysfunction, overactive immune systems (e.g., rheumatoid arthritis), or severe infections.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

This ratio can indirectly reflect liver function (albumin production) and immune status (globulin levels). Abnormalities may signal underlying conditions that require further medical evaluation, such as chronic liver disease, autoimmune disorders, or nutritional deficiencies.

Short name

Albumin-to-Globulin Ratio

Frequently asked questions

What does an abnormal albumin-to-globulin ratio mean?
An abnormal ratio may indicate problems with your liver, immune system, or overall protein metabolism. Your doctor will discuss findings with you and may recommend additional tests to determine the cause.
How often should I get this test?
Your doctor will determine how often this test is needed based on your health condition. Some people may need it yearly, while others may require it more frequently if they have ongoing health issues.
Can diet affect this test result?
Yes, diet can influence protein levels. Eating a balanced diet rich in proteins may help maintain normal levels. Avoiding excessive alcohol or following a specific diet prescribed by your doctor can also support accurate results.
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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