• Thyroglobulin Antibodies
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Thyroglobulin Antibodies

Thyroglobulin Antibodies

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The Thyroglobulin Antibodies test detects antibodies against thyroglobulin, a protein produced by the thyroid gland that plays a key role in hormone production. Elevated levels of these antibodies may indicate autoimmune thyroid disease, such as Hashimoto's thyroiditis or Graves' disease. This test is particularly important for individuals with a history of thyroid issues or those undergoing treatment for thyroid cancer, as it can help monitor the effectiveness of treatment and the potential for recurrence. Understanding your thyroglobulin antibody levels is crucial for managing thyroid health effectively.

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About This Test

Reason to Check It

"Autoimmune thyroid disease is characterized by the occurrence of antibodies directed against the thyroid gland, referred to as autoantibodies. 

Individuals who have thyroid autoantibodies can progress to overt hypothyroidism at a rate of 3%-5% per year. A common thyroid autoantibody seen in people with hypothyroidism is called thyroid peroxidase antibody.

If your thyroglobulin antibody is positive you may develop the signs and symptoms of hypothyroidism which includes weight gain, loss of energy and loss of sex drive." - Dr. Alan Hopkins

Test Preparation

  • No special preparation is required before your sample collection.


Please Note: We recommend overnight fasting and an early morning blood draw for all tests, even if no special preparation is required. Remember, it is OK to drink plenty of water. Drinking water helps hydrate you and makes it easier for the phlebotomist to obtain your blood sample.

Test Type and Method

Test Type:

  • Blood


Test Method:

  • In-person Blood Draw

Post-Test Notes

  • Once your specimen is collected, test results are typically processed and available within a few business days. Processing times may vary depending on the test. Your results will be delivered in a clear, easy-to-understand report. If any values fall outside the expected range, you may receive a follow-up call from an independent healthcare coordinator.

Lab Testing is Simple, Fast, and Convenient

Choose the Individual Test or Lab Panel that suits your health needs. You’ll receive your lab requisition within 24 hours. Visit any of the 3,000+ Quest Diagnostics centers using the button below. Once your sample is collected, your results will be securely delivered via email within 7–10 days.

View Quest Draw Locations

Lab Testing is Simple, Fast, and Convenient

Choose the Individual Test or Lab Panel that suits your health needs. You’ll receive your lab requisition within 24 hours. Visit any of the 3,000+ Quest Diagnostics centers using the button below. Once your sample is collected, your results will be securely delivered via email within 7–10 days.

View Quest Draw Locations