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 ...

In 1 year of thyroid function tests across Wales, the incidence per 100,000 population of low free T4 (FT4) was 98-301, whereas that of central hypothyroidism was just two. With the current increased ...

If a person wants to carry out a thyroid test, they may consider one of the following from these popular companies. None of these companies state that the Food and Drug Administration (FDA) approves ...