Test Name Anti Thyroglobulin antibodies (ATG)
Anti Thyroglobulin antibodies (ATG) are directed against Thyroglobulin which is produced by the thyroid gland. Thyroglobulin is the precursor of T3 and T4 hormones which are essential for almost all metabolic activities in the body. ATG antibodies are organ specific autoantibodies that occur after the thyroid gland gets inflamed or is injured, due to a viral infection, or even cancer. ATG test determines the presence and levels of these antibodies in the bloodstream. Higher levels of ATG may be found in autoimmune disorders such as Graves’ disease or Hasimoto thyroiditis.
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