The patient's initial newborn screening test, done on the second day of her life, showed an elevated serum TSH level of 27.3 mIU/l (normal level <20 mIU/l in the first 48 h of life), and a total T ...

A serum TSH level between 0.5 and 2.0 mIU/L is generally considered the optimal therapeutic target for the L-T4 replacement dose for primary hypothyroidism. TSH is slow to re-equilibrate to a new ...

Subclinical hyperthyroidism is defined as serum thyroid hormone levels within their respective ... the degree of thyroid-stimulating hormone suppression and the presence of comorbidities.