Dimitrova S, Tsachev K, Dochev D, Kuzmov I
Vutr Boles. 1984;23(4):91-9.
The analytical reliability was studied of the results from the determination of pH, pCO2, and pO2 obtained by automatic analyzers "Corning 178" and "ABL 2". Control materials Confirm, Certain and Acidbasol were used for that purpose, within the normal, acid and alkaline region, as well as arterial blood. The reproducibility in series and in time for all three parameters correspond to the present day requirements for both preparations (VC: pH--under 0,2%; pCO2 and pO2--under 5%), pH--better for "Corning 178". The accuracy of the results for pH and higher values of pO2 is better (d%: pH--under 0,2%; pO2--under 5%). With the diminution of the values of the latter index--the accuracy deteriorated. The accuracy established for pCO2 is unsatisfactory with both the apparatuses and with all three control materials. The results from the comparative analysis reveal a high-degree positive correlation between the apparatuses (rover 0,9). The analytical reliability established for both automatic pH and blood gases analyzers is sufficient to provide the diagnostic reliability of the results necessary for the clinical practice.
研究了使用自动分析仪“康宁178”和“ABL 2”测定pH、pCO₂和pO₂所得结果的分析可靠性。为此，在正常、酸性和碱性区域以及动脉血中使用了对照物质Confirm、Certain和Acidbasol。所有三个参数的系列和时间重现性均符合目前两种仪器的要求（变异系数：pH低于0.2%；pCO₂和pO₂低于5%），pH方面“康宁178”表现更佳。pH和较高pO₂值结果的准确性更好（偏差百分比：pH低于0.2%；pO₂低于5%）。随着后者指标值的降低，准确性变差。两种仪器对所有三种对照物质测定pCO₂时所确定的准确性均不令人满意。对比分析结果显示仪器之间存在高度正相关（相关系数超过0.9）。为自动pH和血气分析仪确定的分析可靠性足以提供临床实践所需结果的诊断可靠性。
