9,10 In a patient with signs and symptoms of hyperthyroidism, the presence of elevated or detectable TSH levels rules out primary hyperthyroidism. Once the existence of central hyperthyroidism is ...

A high TSH suggests an underactive thyroid gland ... especially in younger females. You may still have symptoms despite a ...

In studies that suggest that it does reduce symptoms, the measurable benefit appears limited to those patients whose initial TSH levels are substantially elevated (that is, greater than 10 mU/L ...

Intermittent or non-compliance with levothyroxine (L-T4) replacement therapy will result in discordant serum TSH and FT4 values (high TSH/high FT4) because of a persistently unstable thyroid state ...