Medically reviewed by Danielle Weiss, MD A doctor can test your TSH levels with a blood test to diagnose thyroid ...

Earlier this fall, Medscape Medical News spoke to endocrinologists Angela M. Leung, MD, and Karen Tsai, MD, on how to interpret abnormal results of thyroid hormone tests. To address some additional ...

When assessing thyroid function, thyroid hormone levels ― particularly free thyroxine (FT4) levels ― consistently show stronger associations with a wide array of clinical conditions than the standard ...

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 ...

On August 7, 2025, the Food and Drug Administration announced that it would be demanding the elimination of natural thyroid treatment, otherwise known as desiccated thyroid extract (DTE) or natural ...