Normal thyroid-stimulating hormone (TSH) levels generally fall between 0.4 and 4.5 milliunits per liter (mU/L). TSH levels ...

Post-menopausal women starting hormone replacement therapy ... that directly inhibit pituitary TSH secretion.) A low-normal TSH level in the presence of a low TT4 and low TT3 may reflect central ...

Normal’ TSH and FT4 concentrations change with age, and the failure to consider those changes in assessment can lead to ...