The thyroid produces a hormone called triiodothyronine, known as T3. It also produces a hormone called thyroxine, known as T4. Together, these hormones regulate your body’s temperature, metabolism, and heart rate. Most of the T3 in your body binds to protein.
Triiodothyronine (T3) is a thyroid hormone. It plays an important role in the body’s control of metabolism (the many processes the body does to function). A laboratory test can be done to measure the amount of T3 in your blood.
Normal range of T3 Test is 75 -200 ng/dL.
