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Choose collection locationEndocrinology · Individual laboratory test
Anti-Thyroglobulin Antibody (Anti-TG)
Anti-thyroglobulin antibodies show an immune response to a thyroid protein. They can also affect interpretation of a thyroglobulin measurement.
Price for this test on its ownAED 195Test price AED 95
Clinical authorDr Nirupama SabhapathySpecialist Clinical Pathology
- Sample
- Serum
- Laboratory turnaround
- 24 hours
- Collection
- Dubai
- Laboratory
- Intel Lab
Understanding the test
What does the Anti-Thyroglobulin Antibody (Anti-TG) test measure?
Also called Thyroid Autoantibody (Anti-Tg)
This antibody can support an assessment of autoimmune thyroid disease. It is also relevant when thyroglobulin is being followed after treatment for certain thyroid cancers.
When it may be requested
Looking for thyroid autoimmunity
Anti-thyroglobulin antibodies can add context when other thyroid findings suggest inflammation.
Checking a thyroglobulin report
Your clinician may need the antibody level to judge how reliably thyroglobulin can be measured.
Before your sample
Prepare for collection
SpecimenSerum
Your checklist
Fasting is usually unnecessary for anti-TG. If thyroid hormones are being collected too, ask how to time your thyroid medicine and disclose any biotin supplement.
A clinician takes a small sample of blood from a vein. The laboratory uses serum, the liquid separated from the blood after it clots.
Smart Report
Understanding your result
24 hoursLaboratory turnaround
Result guideAnti-Thyroglobulin Antibody (Anti-TG)
Reading your result
A positive antibody changes how a thyroglobulin level may be read. It does not by itself show whether thyroid hormone production is currently high or low.
What can affect it
- The antibody does not measure how much hormone the gland currently produces.
From sample to follow-up
Your testing journey
Laboratory testAnti-Thyroglobulin Antibody (Anti-TG)
- Specimen
- Serum
- Turnaround
- 24 hours
Open your laboratory report
Look for Anti-Thyroglobulin Antibody (Anti-TG) in your report. Use the sample type and collection time when comparing it with an earlier report.
Explore Smart Report
Discuss the next step
If thyroglobulin is also being monitored, show the clinician the antibody result and the method or laboratory on your earlier reports.
Clinical expertise
Your laboratory team
Patient questions
Before you book
Are antibodies the same test as thyroglobulin itself?
No. Thyroglobulin is a protein made by thyroid tissue. Anti-TG measures antibodies that recognise the protein, and their presence can interfere with some thyroglobulin assays.
Do these antibodies mean my thyroid will eventually fail?
Not necessarily. They indicate an autoimmune process is present and raise the likelihood that thyroid function will drift over time, which is why your doctor may check TSH periodically. Many people carry them for years with a gland that keeps working normally.
Why is this measured whenever my thyroglobulin is checked after cancer treatment?
Because the antibody interferes with the thyroglobulin assay and can make the reported value look lower than it truly is. Measuring both together tells your doctor whether that thyroglobulin result can be taken at face value.
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Your next step
Anti-Thyroglobulin Antibody (Anti-TG) test at home.
Sources & further reading
Written by Dr Nirupama Sabhapathy, Specialist Clinical Pathology. Medically reviewed by Dr Joyce Jose, Specialist Clinical Pathology, on .
Catalogue information and AED price checked on 2 November 2026. Clinical suitability, preparation, collection arrangements and turnaround are confirmed for your selected test.