• J J Chance, D J Li, L J Sokoll, M A Silberman, M E Engelstad, J H Nichols, X Liu, A A Mohammad, J R Petersen, and A O Okorodudu.
• Department of Pathology, Johns Hopkins Medical Institutions, Baltimore, MD 21287-7065, USA.
• Crit. Care Med. 2000 Jun 1; 28 (6): 2081-5.

ObjectiveTo evaluate the analytical performance of the SenDx 100 portable blood gas and electrolyte analyzer (SenDx Medical, Carlsbad, CA).DesignAccuracy was evaluated by correlation of whole blood patient samples with the Nova Stat Profile 5 (Nova Biomedical, Waltham, MA) and the Ciba Corning 865 (Chiron Diagnostics, Medford, MA). Precision was evaluated using quality control materials (RNA Medical, Acton, MA).SettingCritical care laboratories and operating rooms in two institutions.Measurements And Main ResultsPrecision studies performed at three different concentration levels for each analyte demonstrated intra-assay precision of < or =2.5% coefficient of variation and interassay precision of < or =4.0% coefficient of variation in all cases. Analysis of patient specimens in general showed good to excellent correlation to reference analyzers. Regression variables are tabulated.ConclusionsThe SenDx 100 portable blood gas and electrolyte analyzer is a simple and easy to use analyzer demonstrating acceptable performance compared with reference methods.

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