A high TSH suggests an underactive thyroid gland ... does not also consider someone's symptoms may be ineffective. If a TSH ...

Medically reviewed by Isabel Casimiro, MD, PhD A TSH test measures the level of thyroid-stimulating hormone in your blood.

[204] In cases where TSH appears inappropriately elevated, a thyroid hormone suppression test (1mg L-T4 or 200µg L-T3, po) would be expected to suppress serum TSH more than 90% by 48 hours in ...

This test measures thyroid stimulating hormone (TSH), free thyroxine (FT4 ... If your results come back outside of the normal range (either high or low), you have the option of a free consultation ...

Most TSH methods now claim a detection limit ... to reflex from a less sensitive to a more sensitive test. (Insensitivity causes falsely high, not falsely low, values that are missed by reflex ...