Pishtaz - Model PT-FT3-96 - Thyroid Elisa Kit - Brochure

3,5,3′ triiodothyronine (T3) hormone secreted by thyroid gland and circulates in the bloodstream, mostly (99.7%) bound to the plasma proteins, thyroxine binding globulin (TBG), prealbumin and albumin. The remaining (0.3%) is free(FT3), unbound and its metabolic potency is much greater. T3 hormone regulates cell metabolism and body growth and its level is good indicator of thyroid disease state and body metabolism. Alteration of plasma proteins in clinical conditions such as pregnancy and drugs usage like contraceptive pills, estrogen therapy, phenytoins, androgens lead to falsely increase in total T3 but not in free T3 level. Therefore assessing the FT3 is a reliable diagnostic tool for estimation of thyroid disease.