Stehouwer M H, Stehouwer C D, Hackeng W H
Department of Internal Medicine, Bergweg Municipal Hospital, Rotterdam, The Netherlands.
Neth J Med. 1991 Aug;39(1-2):20-2.
A case of euthyroid hypothyroxinaemia caused by the interference of the patient's serum with the Abbott thyroxine TDx assay is reported. This cause of falsely low serum thyroxine levels is probably rare but possibly underrecognized. Clinical implications are discussed.