Free Thyroxine Index Labcorp. Free thyroxine index, t3 uptake, thyroxine (t4), triiodothyronine (t3), tsh. Free thyroxine index (fti) this test is not available in all locations.
Triiodothyronine (t3), free ( labcorp ) , thyroid profile with tsh (partial) ( labcorp ) covered components: Free thyroxine index, t3 uptake, thyroxine (t4), tsh blacklisted states: Free t 4 may be indicated when binding globulin (tbg) problems are perceived, or when conventional test results seem inconsistent with clinical observations.
Measurement of free triiodothyronine is of value in confirming the diagnosis of hyperthyroidism, when an elevated free or total thyroxine level is found.
Is apple cider vinegar good for your thyroid. T4, t3 uptake, free thyroxine index and tsh. Please provide service area information to confirm test code for the lab that services. Reference range 4.5 to 12.0 mcg/dl t3 uptake:
