Compatibility levels between blood gas analysis and central laboratory hemoglobin and electrolyte tests in pediatric patients: A single‐center experience

Abstract

Introduction:We aimed to evaluate the interchangeability of sodium, potassium, hemoglobin, and hematocrit measurement between the blood gas analyzers and laboratory automatic analyzers results.Methods: This was a retrospective cross-sectional study. The results of 1927 paired samples analyzed simultaneously with the blood gas analyzer and the laboratory automatic analyzer were compared. The Bland-Altman and Cohen's kappa statistic detected the agreement between the two analyses. Results:The limits of agreement (±1.96 standard deviation of the mean difference) were −11.1 to 20.3 for sodium, −1.9 to 0.5 for potassium, −16.1 to 12.9 for hematocrit, and −5.0 to 4.0 for hemoglobin. Agreement between the two analyses was not acceptable within the defined clinically acceptable limits. In addition, none of the kappa values were higher than 0.60, which highlights the lack of agreement between the two analyzers. Conclusion:The blood gas analyzers and laboratory automatic analyzers results cannot be used interchangeably.

Comparison of blood gas analysis parameters, biochemical tests and hematological parameters in geriatric patients admitted to the emergency department

“…In a study with two hundred and nineteen data, no statistical significance was found in the comparison of laboratory hemoglobin values with blood gas hemoglobin values; There was a statistically significant correlation in the comparison of blood gas analyzes of sodium and potassium and hospital laboratory values [7]. In a retrospective study that included 1927 pediatric patients, it was concluded that blood gas parameters such as hemoglobin, hematocrit, sodium, and potassium could not adequately correlate with hospital laboratory parameters, and these parameters should not be used in patient management [8]. In a retrospective study of more than thirty thousand patients, hemoglobin, hematocrit, sodium, potassium, glucose values were compared between blood gas analyzes and hospital laboratory analyzes, similar to our study.…”

“…Although there are studies conducted in patients admitted to the emergency department [1], patients hospitalized in the intensive care unit [6], and pediatric patients [8], there is no study comparing blood gas parameters and hospital laboratory parameters in geriatric patients, to the best of our knowledge.…”