Thyroxine (T4) is the main hormone your thyroid makes. Your thyroid hormones are important because they control how your body uses energy from the food you eat. (Photo Credit: iStock/Getty Images) T4 ...

A radioactive iodine uptake (RAIU) tests the function of your thyroid gland, which helps regulate your metabolism. It works by measuring how much radioactive iodine is absorbed by the thyroid gland, ...

Thyroid problems are often underdiagnosed because their symptoms mimic many common health issues, making misdiagnosis frequent.

While the tests can make it easier for people to access health care and can be helpful for those who have extreme anxiety ...

A thyroid-stimulating immunoglobulin (TSI) test is a blood test that can help diagnose Graves’ disease, an autoimmune condition that causes an overactive thyroid. A TSI test measures levels of TSIs in ...

Thyroid function test abnormalities in pregnancy, including those at subclinical levels, are linked to a higher risk of preterm birth, according to a new meta-analysis. However, there is no evidence, ...