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The assessment of accuracy was based on comparison of patients' sample values analyzed by the PCA and the Kodak Ektachem 700 (or the Coulter ST for hematocrit). Precision did not differ significantly between these two locations, the CVs being as follows: sodium, 0.46-0.89% potassium, 1.06-1.45% chloride, 0.69-2.76% urea nitrogen, 2.54-6.12% and glucose, 4.39-5.19%. The PCA was evaluated for precision, accuracy, and utility in emergency department and stat laboratory settings.
#ISTAT CHEM 8 SERIES#
Sample analysis takes place in the cartridge, which contains a series of thin-film electrodes microfabricated on silicon chips.
#ISTAT CHEM 8 PORTABLE#
The i-STAT Portable Clinical Analyzer (PCA) system is composed of a hand-held analyzer and disposable cartridges. We evaluated a novel system designed for rapid, point-of-care measurement of sodium, potassium, chloride, urea nitrogen, glucose, and hematocrit.