Articles on Medical Diseases and Conditions

The American Thyroid Association has recommended that the entity most commonly known as the free thyroxine index (TI, or T-7, T-12, Clark and Horn index) be renamed the free T4 index (FT4I). The FT4I was developed to correct the T4 assay for effects of thyroxine-binding protein alterations. It consists basically of the serum T4 result […]

The THBR is a variant of what is commonly known as the T3 uptake, or T3U. T3U does not measure T3, as its name might imply, but instead estimates the amount of non occupier (unsaturated) thyroid hormone-binding sites on serum protein. Therefore, the American Thyroid Association has recommended that the name thyroid hormone-binding ratio replace […]