Multicenter Study on the Analytic Performance of a New Point-of-Care Blood Gas Analyzer and Its Use in Critical Care Testing

Barbara Bewley, Gary Creed, Ada Goerlach-Graw, Bernhard Engel, Garbriele Halwachs-Baumann, Herwig Holzer, Norbert Katz, Gerald Kost, Manfred Kraft, Helmut Kuester, Kor Miedema, Dietmar Nagel, Hervé Normand, Anthony Okorodudu, Bodil Olander, Boris Rolinski, Stefan Utzolino, Brenda Wiley

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


The objective of this study was to evaluate the analytic performance characteristics of and user satisfaction with the new Roche OMNI S critical care analyzer in a clinical setting. Fourteen sites were included in this multicenter study, and each site performed from 100 to 300 measurements on the Roche OMNI S instrument. In method comparison experiments, all results with Roche OMNI S were in good agreement with the routine laboratory or other point-of-care methods. Correlation coefficients were above 0.94 for most parameters and above 0.98 for PO2PCO2and pH. Day-to-day imprecision using fresh blood samples showed good results, means of cviwere equal or below 0.7% for electrolytes, pH, and SO2; and were between 0.8% and 3% for the other parameters. In tonometry experiments, the recovery of the calculated PO2value was within ±2% and within ±3% for PCO2. The authors found a high degree of user satisfaction. Sample application/measurement, ease of use, routine maintenance, and quality control were highlighted by the users. Overall, the Roche OMNI S critical care analyzer showed a convincing analytic performance in imprecision testing, tonometry, and method comparison experiments. Thus, its use in critical care or point-of-care testing is recommended. The availability of total bilirubin determination with short turnaround time and very low sample volume may be beneficial to improve patient care in neonatology.

Original languageEnglish (US)
Pages (from-to)149-155
Number of pages7
JournalPlastic Surgical Nursing
Issue number4
StatePublished - Sep 2004


  • bilirubin
  • blood gas analyzer
  • method comparison
  • multicenter evaluation study
  • point-of-care testing

ASJC Scopus subject areas

  • Surgery
  • Medical–Surgical
  • Advanced and Specialized Nursing


Dive into the research topics of 'Multicenter Study on the Analytic Performance of a New Point-of-Care Blood Gas Analyzer and Its Use in Critical Care Testing'. Together they form a unique fingerprint.

Cite this