Multicenter Study on the Analytical Performance of a New Point-of-Care Blood Gas Analyzer

A multicenter study was carried out to investigate the analytical performance characteristics of the new blood gas analyzer, Roche OMNI C, in a clinical setting. In method comparison experiments, all results with Roche OMNI C were at least in good agreement with the routine laboratory comparison methods; typical correlation factors were above 0.92 for all parameters and above 0.98 for Po2Pco2and pH. In tonometry experiments, the recovery was 100% ± 2% with the exception of 1 concentration level with Pco2. Day-to-day imprecision for both controls and blood samples was very good, with coefficients of variation for most parameters below 1.6% (controls) and at or below 1.3% (blood samples). Overall, Roche OMNI C showed convincing analytical performance results in imprecision testing, tonometry, and method comparison experiments, and compared well with established routine analyzers. Its easy-to-use concept, low maintenance, and the possibility of automated quality control fit well into the critical care/point-of-care setting. © 2003 Lippincott Williams & Wilkins, Inc.

Duke Scholars

Author John Griffith Toffaletti Pathology