The Free Thyroid Profile includes blood tests that evaluate the functioning of the thyroid gland. It can detect disorders of the thyroid gland. 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.