Comparison of bicarbonate and base excess values analyzed by four different blood gas analyzers.
Comparison of the calculation formula, reproducibility, correlation and variation of bicarbonate ion concentration (HCO(3) (-)), and base excess value (BE) among four blood-gas analyzers was performed. No HCO(3) (-) and BE values calculated from the formulas showed any clinically significant difference, and all analyzers showed good correlation on their measurements. On the actual measurement of a specific sample, however, BE values from the same sample ranged between -6.3 and -15.7, which might affect therapeutic strategy. Caution should be taken for the assessment of data if different types of blood-gas analysis devices are used in the same facility.
Department of Surgical Operation, Toyama University Hospital, 2630 Sugitani, Toyama 930-0194, Japan.
Katsuhito
K
Nakamaru
Noboru
N
Hatakeyama
Masana
M
Yamada
Mitsuaki
M
Yamazaki
D000136:Acid-Base Equilibrium; D000137:Acid-Base Imbalance / Q000097:blood*; D001639:Bicarbonates / Q000097:blood; D001784:Blood Gas Analysis / Q000379:methods*; D006801:Humans; D012016:Reference Values; D015203:Reproducibility of Results
D001639:Bicarbonates