Serum or Plasma Total Protein with Albumin-to-Globulin Ratio (TGA)
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.
["Assessing protein balance and potential nutritional or liver issues through albumin and globulin ratios."]
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?
How long does it take to get results?
Can diet affect this test?
Sources
- 1
- 2Lab Tests OnlineSource
- 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.
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