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Thyroid Antibodies

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Also known as: Thyroid Autoantibodies; Antithyroid Antibodies; Antimicrosomal Antibody; Thyroid Microsomal Antibody; Thyroid Peroxidase Antibody; Thyroperoxidase Antibody; TPO; Anti-TPO; TBII; Antithyroglobulin Antibody; TgAb; TSH Receptor Antibody; TRAb; Thyrotropin Receptor Antibodies; Thyroid Stimulating Immunoglobulin; TSI
Formal name: Thyroid Peroxidase Antibody; Thyroglobulin Antibody; Thyroid Stimulating Hormone Receptor Antibody

At a Glance

Why Get Tested?

To help diagnose and monitor autoimmune thyroid diseases and to distinguish these from other forms of thyroid disease; to help guide treatment decisions

When to Get Tested?

When you have an enlarged thyroid (goiter) and/or when your other thyroid tests, such as total or free T3, free T4, and TSH, indicate thyroid dysfunction; along with a thyroglobulin test when your healthcare provider is using it as a monitoring tool; at intervals recommended by your healthcare provider when you have a known autoimmune thyroid disorder

Sample Required?

A blood sample drawn from a vein in your arm

Test Preparation Needed?