Role of Correction Factor in Minimizing Errors While Calculating Electrolyte Values between Blood-gas Analyzer and Laboratory Autoanalyzer: A Comparative Study.

Sodium and potassium levels measured in the whole blood and plasma have been shown to be essentially identical.[ 5 ] Hence, we assume that the blood and the plasma used for electrolyte measurement in ABG and AA, respectively, should be equal.[ 6 ] A lot of studies are published about the comparison of these two methods, and it has been already proved beyond doubt that there remains a highly significant difference statistically in between the electrolytes measured by these two methods.[ 7 , 8 ] In this study, we tried to find out the correction factor for sodium and potassium and then correlating the corrected ABG electrolyte values with the laboratory values.

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