title: [Immunoanalytical profile of free tri-iodothyronine].
abstract: Tri-iodothyronine (T3) is the active form of thyroid hormone at the nuclear cell level. About 80% of tri-iodothyronine is produced by peripheral deiodination of thyroxine. The determination of the free form of this hormone is useful for the diagnosis and the follow-up of hyperthyroidism. In routine clinical laboratories, immunoassays remain the most used technics. After recalling the main points related to the physiological data, the authors point out the possible errors during the analytical steps of the assay.
authors.affiliation: Laboratoire de surveillance et épidémiologie nutritionnelles en Tunisie (Surven), Institut national de nutrition et de technologie alimentaire, Tunis, Tunisie.
authors.forename: Radhouene
authors.initials: R
authors.lastname: Doggui
authors.affiliation: Unité de formation continue Acorata, Sajas, France.
authors.forename: Jacques
authors.initials: J
authors.lastname: Ingrand
mesh_terms: D001800:Blood Specimen Collection / Q000592:standards; D003951:Diagnostic Errors; D003955:Diagnostic Tests, Routine / Q000592:standards; D006801:Humans; D006980:Hyperthyroidism / Q000097:blood / Q000175:diagnosis; D007118:Immunoassay / Q000592:standards; D017410:Practice Guidelines as Topic; D012107:Research Design; D013960:Thyroid Function Tests / Q000592:standards*; D013974:Thyroxine / Q000097:blood; D014284:Triiodothyronine / Q000032:analysis* / Q000097:blood* / Q000276:immunology
chemical_list: D014284:Triiodothyronine; D013974:Thyroxine
keywords: hyperthyroidism; immunoassay; thyroid hormones; tri-iodothyronine