The Free Triiodothyronine (T3) test measures the level of free T3, the unbound and biologically active form of the T3 hormone, in the blood. T3 is a thyroid hormone that plays a crucial role in regulating metabolism, growth, and development. This test is used to assess thyroid function and diagnose thyroid disorders such as hyperthyroidism and hypothyroidism.
Hey Practitioners! 
Join Dr. Chris Magryta and Dr. Erik Lundquist for a comprehensive 6-week course on evaluating functional medicine labs from two perspectives: adult and pediatric. In this course, you’ll explore the convergence of lab results across different diseases and age groups, understanding how human lab values vary on a continuum influenced by age, genetics, and time. Register here.
Register Here
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