Why get tested? To help diagnose and monitor autoimmune thyroid diseases and to distinguish these from other forms of thyroiditis; to help guide treatment decisions
When to get tested? When you have a goiter and/or when your other thyroid tests, such as T3, T4, and TSH, indicate thyroid dysfunction; along with a thyroglobulin test when your doctor is using it as a monitoring tool; at intervals recommended by your doctor when you have a known autoimmune thyroid disorder
Sample required? A blood sample drawn from a vein in your arm
This article was last reviewed on November 24, 2008 .
This page was last modified on April 8, 2009.
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