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Serum or Plasma Total Protein with Albumin-to-Globulin Ratio (TGA)

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

This test measures your blood’s total protein levels and evaluates the balance between albumin and globulin proteins, which can help assess protein metabolism, liver function, and immune response.

Quick summary

["Assessing protein balance and potential nutritional or liver issues through albumin and globulin ratios."]

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

Key facts at a glance

LOINC
98331-2
Short code
XR Sternum Views Obl
Synonyms
XR Sternum Views Obl
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
xr
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 This Test Matters

Total protein and albumin-globulin ratios are important because they reflect how well your body produces and maintains proteins. Albumin, a key protein made by your liver, helps keep fluids in your bloodstream and supports immune function. Globulins, also produced by the liver and immune system, include proteins like antibodies that fight infections. Abnormal ratios may indicate conditions such as malnutrition, liver disease, chronic inflammation, or kidney problems.

What to Expect Before the Test

No special preparation is needed for this test. You may have a blood draw from a vein in your arm, similar to other routine blood tests. If you’re on certain medications or have recent infections, let your provider know, as it may affect results.

What the Results Mean

A high albumin-to-globulin ratio often suggests healthy protein production, while a low ratio may point to conditions like liver disease, malnutrition, or chronic inflammation. Total protein levels alone don’t provide enough detail, so the albumin-globulin ratio helps narrow down possible causes.

Common Conditions Linked to Abnormal Results

Elevated ratios may be seen in conditions like chronic liver disease or certain infections. Low ratios could indicate liver dysfunction, malnutrition, or kidney disease. Your provider will discuss these findings in relation to your overall health and symptoms.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Albumin-to-Globulin Ratio (TGA) Profile

Frequently asked questions

What causes a high albumin-to-globulin ratio?
A high ratio may occur in conditions where albumin production is normal or increased, such as certain liver diseases (e.g., cirrhosis), chronic infections, or autoimmune disorders. It can also be seen in healthy individuals with normal protein metabolism.
How long does it take to get results?
Results are typically available within 1–3 business days, depending on your lab’s processing time. Your healthcare provider will contact you once they’re ready to discuss your findings.
Can diet affect this test?
Dietary changes may influence protein levels, but albumin-globulin ratios are less sensitive to short-term diet changes. If you suspect malnutrition or dietary restrictions, discuss them with your provider before the test.
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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