https://www.selleckchem.com/pr....oducts/chitosan-olig
OBJECTIVE Familial dysalbuminaemic hyperthyroxinemia (FDH), most commonly due to an Arginine to Histidine mutation at residue 218 (R218H) in the albumin gene, causes artefactual elevation of free thyroid hormones in euthyroid individuals. We have evaluated the susceptibility of most current free thyroid hormone immunoassay methods used in the UK, Europe and Far East to interference by R218H FDH. METHODS Different, one- and two-step immunoassay methods were tested, measuring Free T4 (FT4) and Free T3 (FT3) in 37 individu