The A/G ratio compares albumin with globulin.
- Normal range (adults)
- 1.1–2.5
- Sample
- Blood
- Fasting
- Not usually needed
- Also called
- Albumin Globulin Ratio, Albumin/Globulin Ratio, A G Ratio
A/G Ratio normal range
| Group | ValueSame unit in all countries |
|---|---|
| Adults | 1.1–2.5 |
Ranges vary slightly between laboratories. The range printed on your own report is the one to go by.
Why is the A/G Ratio test done?
It helps interpret abnormal protein results.
What does a high A/G Ratio level mean?
A high ratio usually means low globulin.
Common causes
- Low antibody production
- Some genetic conditions
Diet and lifestyle tips
- Balanced diet with adequate protein
What does a low A/G Ratio level mean?
A low ratio means either low albumin or high globulin.
Common causes
- Liver disease
- Kidney disease
- Autoimmune disease
- Chronic infection
- Multiple myeloma (rare)
Diet and lifestyle tips
- Adequate protein
- Anti-inflammatory eating pattern
When should you see a doctor?
The ratio is a clue, not a diagnosis; your doctor will look at albumin and globulin separately.
Last updated
This page is for general education and is not a diagnosis. Normal ranges differ between laboratories, so always compare your result with the reference range printed on your own report, and discuss abnormal results with your doctor.