Post-menopausal women starting hormone replacement therapy may need ... level and a blunted (<2-fold rise/ ≤4.0 mIU/L increment) TRH response. When the serum FT4 is low and yet the serum TSH ...

The hypothalamus and the pituitary gland help control the thyroid gland. The hypothalamus produces thyrotropin-releasing hormone (TRH), which stimulates the pituitary gland to release ...

The hypothalamus releases thyrotropin releasing hormone (TRH) to stimulate the pituitary to release thyroid stimulating hormone (TSH). Then, TSH stimulates the thyroid to release thyroxine to ...