Method validation of a set of 12 GEM® Premier™ 4000 blood gas analyzers for point-of-care testing in a university teaching hospital

Practical Laboratory Medicine
Charlotte OrisDamien Bouvier

Abstract

Blood gas analyzers are o0.ften integrated into point-of-care testing provisions. International standards (ISO 22870 and 15189) as adapted to French COFRAC regulations make accreditation of point-ofta-care testintag obligatory. We installed and assessed 12 GEM PREMIER 4000 analyzers for pH,pCO2,pO2, Na+, K+, Cl-, Ca2+, lactate, hemoglobin and oxyhemoglobin (O2Hb) at Clermont-Ferrand Hospital. These instruments were distributed across 11 care sites in the hospital. Precision was studied at two control levels for each parameter. Comparisons between GEM analyzers were performed (on 30 samples) for pH,pCO2,pO2, Na+, K+, Cl-, Ca2+, lactate, hemoglobin and O2Hb; and between GEM analyzers and the central laboratory for Na+, K+, Cl-, Ca2+and hemoglobin (on 30-50 samples). Uncertainty in measurement (UM) was evaluated with an approach using reproducibility and accuracy data. The coefficients of variation (CVs) were in line with recommendations, except for the repeatability CV forpO2. All CVs were below 4%. All comparisons complied with recommendations. Uncertainties of measurement were also validated. Our results met standard requirements and the 12 analyzers were assessed as suitable for point-of-care testing in services of academic me...Continue Reading

Citations

Apr 8, 2018·Clinical Chemistry and Laboratory Medicine : CCLM·Geoffroy RousseauAntoine Guillon
Sep 19, 2019·Clinical Biochemistry·Nils KusterJean Paul Cristol

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Software Mentioned

ASQUALAB
POCT
GEM PREMIER
Vista
GEM System Evaluator
GEM PREMIER 4000
PCSar
GEM System Evaluator 2
VISKALI®

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