OverviewOne 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..
Update Date 5/10/2014
Updated by: Brent Wisse, MD, Associate Professor of Medicine, Division of Metabolism, Endocrinology & Nutrition, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.