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Thyroglobulin Antibodies (Anti-Tg) details

What Thyroglobulin Antibodies (Anti-Tg) shows

Thyroglobulin antibodies (anti-Tg) are autoantibodies that target thyroglobulin, a protein made by thyroid tissue, and their presence is associated with autoimmune thyroid conditions, particularly Hashimoto's thyroiditis (the most common cause of hypothyroidism) and, less specifically, Graves' disease. This test also serves an important secondary purpose: since thyroglobulin antibodies can interfere with thyroglobulin testing (used to monitor for thyroid cancer recurrence after treatment), checking for these antibodies first helps confirm that a thyroglobulin result being used for cancer monitoring can be trusted and isn't falsely skewed.

Normal ranges

Typical adult range

0โ€“1 IU/mL

Most labs report a range close to this

Each lab sets its own reference range. Always compare your result with the range printed on your report, and review it with a healthcare provider.

Tests that include Thyroglobulin Antibodies (Anti-Tg)

Quest Not offered
Quest Not offered
Quest Not offered
Quest Not offered
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