A randomized crossover trial evaluated the efficacy of different l-thyroxine dosing strategies and different target thyroid-stimulating hormone (TSH) ranges in patients with treated hypothyroidism.

Thyroid 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 is the type of hormone that becomes active when ...

Please provide your email address to receive an email when new articles are posted on . TSH testing rates were mostly unchanged in the U.S. from 2006 to 2020. There was a dip in TSH testing in April ...