In Sapporo city of Japan, neonatal screening for congenital hypothyroidism has used the measurement of free thyroxine (T4) and thyroid-stimulating hormone (TSH) in the filter-paper blood spot. This ...

Please provide your email address to receive an email when new articles are posted on . Most adults with free thyroxine levels slightly below the reference range have normal free T 4 index values and ...

If your healthcare provider has ordered a T4 test, you may wonder what it is. Thyroxine is another name for T4, which is one of the two main types of thyroid hormone the thyroid gland makes. The other ...

Please provide your email address to receive an email when new articles are posted on . Mothers who give birth to babies with neonatal hypothyroidism tend to have higher levels of free thyroxine and ...

Subclinical hypothyroidism is a mild form of hypothyroidism. It occurs when only one of two main thyroid levels is elevated. It doesn’t usually cause symptoms, and it’s unclear how or if it affects ...