Free Thyroxine Index Range. Normal range/expected value(s) for a specific disease state. Interassay precision (cv) is <5%.
Thyroid - Part 1 - Thyroid Function Test Thyroid Hormones T4 T3 Tsh - Labpedianet from labpedia.net
Your results may be described as free t4 or free thyroxine index (fti). Fti = thyroxine (t4)/thyroid binding capacity. Free thyroxine is often more useful than total thyroxine in assessing thyroid function.
The free triiodothyronine (t3) index.
Free thyroxine (free t4) optimal range: The free t4 test measures the tiny amount of circulating t4 that is unbound, active t4. Fti = free thyroxine index. May also include abnormal ranges.
