What if T3 and T4 is normal and TSH is low?
What if T3 and T4 is normal and TSH is low? A low TSH with normal free T4 and T3 levels is consistent with subclinical hyperthyroidism. Some patients with nodular goiter and Graves’ disease, particularly early in the disease course, will have predominant elevations in T3 due to increased conversion Read more…