Thyroglobulin Abs, or thyroglobulin antibodies, are antibodies produced by the immune system that attack thyroglobulin, a protein produced by the thyroid gland. Your doctor may order a Thyroglobulin Abs test for several reasons:
Evaluation of thyroid disorders: Thyroglobulin Abs levels can be elevated in certain thyroid disorders such as Hashimoto’s thyroiditis, Graves’ disease, and thyroid cancer. Measuring Thyroglobulin Abs levels can help your doctor diagnose these conditions and monitor their progression.
Monitoring of thyroid cancer: After surgery or radioactive iodine treatment for thyroid cancer, measuring Thyroglobulin Abs levels can help monitor for the recurrence of cancer.
Assessment of thyroid function: Thyroglobulin Abs levels can interfere with the measurement of thyroglobulin, a protein produced by the thyroid gland that is used to assess thyroid function. Measuring Thyroglobulin Abs levels can help your doctor interpret thyroid function tests accurately.
Identification of autoimmune disorders: Elevated Thyroglobulin Abs levels can also be a sign of other autoimmune disorders such as rheumatoid arthritis and lupus.
Your doctor may also order other tests such as thyroid function tests, a thyroid ultrasound, or a fine needle aspiration biopsy to help diagnose and manage thyroid disorders. It’s important to discuss your symptoms and medical history with your doctor to determine the appropriate tests and treatments for your individual situation.
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