The most commonly performed thyroid function tests in pediatrics include:
- Thyroid-Stimulating Hormone (TSH): Measures the level of TSH in the blood, which regulates thyroid hormone production. - Free Thyroxine (Free T4): Measures the level of free T4, the active form of thyroxine. - Free Triiodothyronine (Free T3): Measures the level of free T3, the active form of triiodothyronine. - Thyroid Peroxidase Antibodies (TPOAb): Detects antibodies against thyroid peroxidase, which can indicate autoimmune thyroid disease. - Thyroglobulin (Tg): Often used as a tumor marker in certain types of thyroid cancer.