Free Thyroxine Index Formula. 1 pound = 0.45359237 kilograms. Largely replaced by free t4 ( free thyroxine)
A free t4 index (fti) serves as a surrogate of the free hormone level. 1 pound = 0.45359237 kilograms. Largely replaced by free t4 ( free thyroxine)
The free thyroxine index (fti) is determined by the following calculation:
The free thyroxine index (fti) is determined by the following calculation: At a trivial level, test nomenclature can be confusing (table 1): The free thyroxine index (fti) is determined by the following calculation: The normal range for the free t4 index is between 1.1 to 4.3 mcg/dl.