France N C, Speed J F, Conaglen J V
Department of Pathology, Waikato Hospital, Hamilton, New Zealand.
Clin Chem. 1988 Mar;34(3):602-4.
We describe two siblings with artefactually increased results for free thyroxin in serum as measured with the Amerlex analog method, despite normal thyroxin transport. The cause of the artefact is identified as a variant albumin with enhanced affinity for the Amerlex thyroxin-analog.
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