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  • Title: [Analytical reliability of the results of a pH and blood gas study using automatic analyzers].
    Author: Dimitrova S, Tsachev K, Dochev D, Kuzmov I.
    Journal: Vutr Boles; 1984; 23(4):91-9. PubMed ID: 6506665.
    Abstract:
    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.
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