关键词：
Ethanol assay
False-positive
Non-specific assay
Specific assay
摘要：
A case of altered consciousness in which ethanol ingestion was one of the differential diagnoses is described. Three separate blood samples were conveyed to the hospital biochemistry laboratory and each returned a positive value when assayed via an indirect, enzymatic method. The family strongly denied alcohol ingestion and hence, a few days later, the samples were conveyed to an external laboratory using a 'specific', chromatographic method. These samples were all reported as negative for ethanol. Alternative causes of altered consciousness were restricted by the false-positive ethanol laboratory results. (C) 2011 The Canadian Society of Clinical Chemists. Published by Elsevier Inc. All rights reserved.
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