Globulin blood test
Quick answer: A globulin test measures the globulin proteins in your blood, which include antibodies and carrier proteins. It is part of liver function tests and helps look into liver disease, infections, immune problems and myeloma.
- SampleBlood
- TakesAbout 5 minutes
- Before the testNo special preparation is usually needed.
How the test is done
- 1You sit and the skin over a vein is cleaned
- 2A needle draws blood into a tube
- 3The lab measures total protein and albumin
- 4Globulin is calculated from the difference
What your results can mean
Reading your report
Normal ranges differ between labs and by age and sex, so discuss your result with your doctor.
If the result is outside the usual range
A high level can be seen with long-term infection, inflammation, liver disease or myeloma. A low level can be seen with immune deficiency, kidney protein loss or liver problems.
Who usually has this test
People having liver function tests, and people with repeated infections, unexplained high protein or suspected myeloma.
Risks and aftercare
You can return to your usual routine straight away.
Names and options
Also called: serum globulin, A/G ratio
Listed by the hospital as
- GLOBULIN, SERUM
Questions about this test
What is the albumin to globulin ratio?
It compares the two main groups of blood proteins. An abnormal ratio can prompt more tests to find the cause.
Why might a high globulin lead to more tests?
A high globulin can be from inflammation or from an abnormal antibody, as in myeloma. Protein electrophoresis can tell them apart.
Does dehydration affect globulin?
Yes. Dehydration can make all proteins look higher. Your doctor reads the result with this in mind.
Related tests
Tamara Hospital & IVF Centre, Rajajinagar
34/3, 10th Cross Road, opp. Vardhaka Sardar Patel School, 1st N Block, 2nd Stage, Rajajinagar, Bengaluru 560010
The hospital is open 24 hours. Call before you come to check the timing for your scan or sample collection.
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This page explains each test in general terms so you know what to expect. It is not medical advice: your doctor decides which tests you need and what your results mean. Reference ranges differ between laboratories. Updated 4 November 2026.