Of the 21,595 consecutive samples drawn, 10,363 samples were from the SL group and 11,232 from the ED group. Potassium and creatinine values were measured between the two groups as secondary outcomes. The primary outcome was the mean lactate value measured in the SL group in 2015 compared to the ED group in 2016. The data, including patient demographic characteristics, acute illness severity indices, and blood gas results were compared within and between each group using t-test for continuous variables and chi-square test for categorical variables. Samples were separated into two groups: those which were drawn prior to and after relocation of the blood gas laboratory to the ED. The study was exempt from institutional review board approval. The study team evaluated lactic acid values from venous and arterial blood gas samples drawn between Jand September 30, 2016. To investigate an association between blood gas laboratory location and accuracy of ED lactic acid samples. Accuracy of LA values improve when blood gas analysis is performed in the emergency department (ED) as opposed to a satellite laboratory (SL). These results suggest that meanĮmergency Physicians often rely on Lactic Acid (LA) values to make important clinical decisions. No significant difference was found between the creatinine values. There was a small statistical significance between the difference in potassium values in the SL group (mean 3.98meq/L) compared to the ED Group (mean 3.96meq/L) with a p value of 0.022. Significant differences were found between LA values in the SL group (mean 2.21mmol/L) and in the ED group (mean 1.99mmol/L) with a p value of <0.0001. Mean Emergency Severity Index (ESI) were the same in each group at 2.31 and rates of Systemic Inflammatory Response Syndrome (SIRS) were also equivalent in each group at 22.2%. Relocation of blood gas laboratory to the emergency department helps decrease lactic acid values.īrazg, Jared Huang, Phyllis Weiner, Corey Singh, Guneet Likourezos, Antonios Salem, Linda Dickman, Eitan Marshall, JohnĮmergency physicians often rely on Lactic Acid (LA) values to make important clinical decisions.
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