Understanding Albumin/Globulin Ratio: Normal vs Optimal Ranges
Also known as: A/G Ratio, AG Ratio
?What is Albumin/Globulin Ratio?
The A/G ratio (albumin to globulin ratio) is calculated by dividing serum albumin by serum globulin. It reflects the balance between the liver's synthetic function (albumin) and immune activity (globulins). A ratio below 1.0 is particularly significant.
!Why It Matters
A reversed A/G ratio (below 1.0) is seen in liver cirrhosis, autoimmune diseases, chronic infections, and paraproteinaemias. A very high ratio may indicate low globulins from immune deficiency. Interpreting the A/G ratio alongside individual albumin and globulin values provides a fuller picture of liver and immune function.
Reference Ranges
| Range Type | Min | Max | Unit | Note |
|---|---|---|---|---|
| Lab Normal | 1 | 2.5 | ratio | Standard lab reference range |
Lab normal ranges may vary between laboratories. Optimal and longevity targets are based on research literature and should be interpreted with your physician.
Symptoms of Imbalance
- No direct symptoms from the ratio itself
How to Improve Your Levels
- 1Treat underlying liver disease, infection, or immune condition
When to Test
Calculated automatically from standard liver function tests.
Related Biomarkers
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