ISSN 2149-5807 | E-ISSN 2149-6048
Original Article
Comparison of Hgb, Htc, Na, and K Levels Measured by Blood Gases Analyzer and Laboratory Auto-Analyzer in Different ph Stages
1 Department of Emergency Medicine, Kecioren Training and Research Hospital, Ankara, Turkey  
Eurasian J Emerg Med ; : -
DOI: 10.5152/eajem.2018.07078
Key Words: Blood gases analysis, venous blood gases, potassium, sodium, hemoglobin, hematocrit
Abstract

Aim: In this study, primary aim was detecting whether blood gases analyzer (BGA) is reliable or not in daily practice by comparing of Na+, K, Hgb, and Htc levels measured by BGA and laboratory auto-analyzer (LAA). Secondary aim was whether BGA is reliable or not in daily practice by comparing of Na, K, Hgb, and Htc levels measured by BGA and LAA in different pH stages.


Materials and Methods
: This study screened electronic data and file records of all patients who admitted to ED with any complaint during the study period, retrospectively. Patients who had results of venous blood gases and routine laboratory taken at the same time were included this study. For each parameters, agreements and correlations between results of BGA and LAA were evaluated Bland-Altman test and Spearmen Correlation test, respectively and r-value higher than 0.80 was considered a strong correlation.


Results
: Finally, laboratory results of 1374 patients were evaluated for statistically analyses. When evaluated correlations between results of BGA and LAA, it was found that there was only strong correlation for K (p<0.001, r=0.83). When assessed agreements between results of BGA and LAA, the mean difference were found as 0.02±6.1 for sodium, 0.3±0.44 for potassium, -0.5±1.6 for hemoglobin, and -0.6±5 for hematocrit.


Conclusion
: Whereas there is strong correlation and relatively acceptable-good agreement for K measurement, there is no strong correlation and good agreement for other measurements – including Na, Hgb, and Htc. In addition, we found that these results did not change according the different pH stages.


Cite this article as
: Çorbacıoğlu ŞK, Emektar E, Çevik Y, Dağar S, Şencanlar Çetiner H, Özbek MA, et al. Comparison of Hgb, Htc, Na, and K Levels Measured by Blood Gases Analyzer and Laboratory Auto-Analyzer in Different ph Stages. Eurasian J Emerg Med 2018; DOI: 10.5152/eajem.2018.07078

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