title: The evaluation of a chemiluminescent assay for free thyroxine by comparison with equilibrium dialysis in clinical samples.
abstract: We have investigated the diagnostic performance of a chemiluminescence immunoassay for free thyroxine (Ciba Corning Magic Lite) in comparison with equilibrium dialysis. Agreement between the methods was satisfactory across a wide range of samples including those from patients with non-thyroidal illness. The results suggest that the chemiluminescence immunoassay is not subject to the artefacts of widely used analogue tracer methods for free thyroxine estimation.
authors.affiliation: Department of Medical Biochemistry, University of Wales College of Medicine, Cardiff, UK.
authors.forename: J
authors.initials: J
authors.lastname: Beaman
authors.forename: J S
authors.initials: JS
authors.lastname: Woodhead
authors.forename: K
authors.initials: K
authors.lastname: Liewendahl
authors.forename: H
authors.initials: H
authors.lastname: Mähönen
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003956:Dialysis; D005260:Female; D006801:Humans; D008163:Luminescent Measurements; D008297:Male; D008875:Middle Aged; D013960:Thyroid Function Tests; D013974:Thyroxine / Q000097:blood*
chemical_list: D013974:Thyroxine