A classic thyroid panel is a group of tests that may be ordered together to help evaluate thyroid gland function and to help diagnose thyroid disorders. The tests included in a thyroid panel measure the amount of thyroid hormones in the blood. These hormones are chemical substances that travel through the blood and control or regulate the body’s metabolism—how it functions and uses energy.
The thyroid panel includes:
TSH (thyroid-stimulating hormone) – to test for hypothyroidism, hyperthyroidism and to monitor treatment for a thyroid disorder
T3 Uptake & Free, Total T4 (thyroxine) – to test for hypothyroidism and hyperthyroidism; may also be used to monitor treatment
Free T3 (triiodothyronine) – to test for hyperthyroidism; may also be used to monitor treatment