How accurate is a positive initial newborn screening for hypothyroidism?

Initial newborn screening for hypothyroidism is positive and still has a high accuracy rate. If the screening result is abnormal, it is necessary to consult a doctor and have the thyroid function checked for confirmation, otherwise the baby’s intellectual development may be affected.
Neonatal hypothyroidism is a condition caused by insufficient production of thyroid hormones. Neonatal patients may have thinning hair, delayed resolution of jaundice, dry and rough skin, constipation and other manifestations. If not treated promptly, it may affect the baby’s intellectual development.
Therefore, if the newborn’s initial screening test is positive and hypothyroidism is not yet diagnosed, it is necessary to improve the complete set of thyroid function and free thyroid hormone test to clarify the diagnosis. If the diagnosis of congenital hypothyroidism is confirmed, the baby should be treated with supplemental levothyroxine tablets under the guidance of the doctor, so as to avoid causing the baby’s intellectual development to fall behind and other problems.
If the initial screening of newborn’s plantar blood is positive, timely review is recommended. Those diagnosed with hypothyroidism should be treated actively.