Free thyroid profile

Free Thyroid Profile is a group of tests that measures thyroid hormone levels in their free form. It primarily measures the level of three hormones - Serum TSH levels, Free T3 and Free T4. The free thyroid profile results can give a clear indication of how efficiently the thyroid gland performs.

T4 levels can be measured with either a free T4 test or a total T4 test: A free T4 test measures the amount of free T4 in your blood. Medical experts believe this test is more accurate than a total T4 test, so it's used more often. A total T4 test measures free and bound T4 together.