Individual tests

The TRAb or TSH receptor antibody measures the ability of antibodies to inhibit TSH binding to their receptor. TSH is a pituitary gland hormone that stimulates the thyroid hormone's release into the blood. Measurement of TRAb is used to diagnose and manage Graves' disease, neonatal hypothyroidism, and postpartum thyroid dysfunction.
TSIs are antibodies that tell the thyroid gland to release excess amounts of thyroid hormone into the blood. High levels of TSI in the blood can indicate Graves’ disease. This autoimmune disease affects the thyroid gland and causes hyperthyroidism (an excess of thyroid hormone leading to several abnormal metabolisms in your body).
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