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Thyroid function test
Overview
One way to evaluate the performance of the thyroid is through blood testing. The thyroid function test is a group of common tests used to evaluate how the thyroid is functioning.
Review Date 2/28/2024
Updated by: Sandeep K. Dhaliwal, MD, board-certified in Diabetes, Endocrinology, and Metabolism, Springfield, VA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.