TSH results may seem counterintuitive. A high TSH level suggests an underactive thyroid gland, while a low TSH levels indicate an overactive thyroid. TSH influences the production of thyroid ...

High TSH levels could be a sign of hypothyroidism while low TSH levels may signal hyperthyroidism. Thyroid disorders, which affect about 20 million Americans, can be diagnosed with a TSH test ...

Serum TSH levels may become subnormal transiently in the acute phase and become elevated in the recovery phase of an illness. A serum TSH value between 0.05 and 10.0 mIU/L is usually consistent ...

TSH and free T4 were measured by ELISA kits ... of free T4 measurement identified 11 infants with persistent elevated free T4 levels during 2000 to 2006. Our main purpose of detection of infants ...

Use a thyroid hormone suppression test to verify a discordant high TSH level. Normal response to 1mg of L-T4 or 200µg L-T3 administered p.o. is a suppression in serum TSH of more than 90% by 48 ...