J Lab Med Qual Assur.  2019 Mar;41(1):47-49. 10.15263/jlmqa.2019.41.1.47.

Performance Evaluation of the Stat Profile pHOx Ultra Blood Gas Analyzer

Affiliations
  • 1Department of Laboratory Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. wonkmin@gmail.com

Abstract

The objective of this study was to evaluate the analytical performance of the Stat Profile pHOx Ultra Blood Gas Analyzer (Nova Biomedical, USA), a new blood gas/chemistry analyser, including its precision and linearity, comparison studies, and the carry-over effect of commercial reagents and patient specimens. We assessed all the results on the basis of the Clinical and Laboratory Standards Institute guidelines. The following parameters were assessed: pH, partial pressure of carbon dioxide, partial pressure of oxygen, ionized calcium, ionized magnesium (iMg), and lactate concentration The total imprecision had a coefficient of variation of 0.0%-1.8%, and the linear measurement ranges for each parameter were all acceptable. In comparison with the Nova Critical Care Xpress Analyzer (Nova Biomedical, USA), the results indicated a good agreement, except for iMg. All carry-over ranges were between −0.5% and −1.4%. The Stat Profile pHOx Ultra Blood Gas Analyzer showed good analytical performance in terms of precision, linearity, comparison studies, and carry-over effect. The Stat Profile pHOx Ultra Blood Gas Analyzer can provide reliable measurements across a clinically relevant range and has potential use in laboratory tests.

Keyword

Stat Profile pHOx Ultra Blood Gas Analyzer; Performance; Evaluation

MeSH Terms

Calcium
Carbon Dioxide
Critical Care
Humans
Hydrogen-Ion Concentration
Indicators and Reagents
Lactic Acid
Magnesium
Oxygen
Partial Pressure
Calcium
Carbon Dioxide
Indicators and Reagents
Lactic Acid
Magnesium
Oxygen
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