Medically reviewed by Kelly Wood, MDKey TakeawaysThyroid blood tests help figure out how well your thyroid gland is working.TSH helps the thyroid gland know when to make more thyroid hormones. Free T4 ...

Thyroid trouble is not always about the hormones. The real trigger is sometimes a lack of some vitamins and minerals the thyroid needs to operate properly. When these micronutrients are low, the gland ...

A 75-year-old woman with end-stage renal disease who is on chronic hemodialysis has a suppressed thyroid-stimulating hormone (TSH) of 0.1 µU/mL and levels of free thyroxine (T4) and free ...

Whether clinicians are accurately diagnosing thyroid disease was at issue for Chinese researchers who demonstrated that adding subgroup differences according to age, sex, or race when testing for ...