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At a Glance
Why Get Tested?
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
A blood sample drawn from a vein in your arm
Test Preparation Needed?