Thyroglobulin Antibody


For: ,

Quest Diagnostics Test Code: 267

In certain instances, the body makes antibodies which can attack the thyroid gland, leading to chronic inflammation causing it to be dysfunctional. The thyroid gland is responsible for the production and release of two principal hormones called T3 and T4. These hormones are responsible for the regulation of metabolism and energy production. When there are antibodies against the thyroid, it can affect the level of these hormones in the blood, leading to disease. Thyroglobulin is the form in which thyroid hormones are stored, and thyroglobulin antibodies (TGAb) destroy these. This is one of the tests needed to diagnose autoimmune thyroid disease and to differentiate it from simple thyroid dysfunction like hyper or hypo thyroidism.

This test is performed in following conditions such as:

Signs and symptoms of hyperthyroidism
• Weight loss
• Increased heart rate
• Anxiety
• Difficulty sleeping
Signs and symptoms of hypothyroidism
• Weight gain
• Dry skin
• Constipation
• Cold intolerance

Also Known As: Thyroid Antithyroglobulin Antibody


Specimen Collected
  • Blood
Estimated Time Taken

Turnaround time for the Thyroglobulin Antibody test is typically 2-3 business days.