Agreement between Arterial and Capillary pH, pCO₂, and Lactate in Patients in the Emergency Department.

ABSTRACT:

Background

Blood gas analysis (BGA) is a frequent painful procedure in emergency departments. The primary objective of the study was a quantitative analysis to assess the mean difference and 95% confidence interval of the difference between capillary and arterial BGA for pH, pCO₂, and lactate. Secondary objective was to measure the sensitivity and specificity of capillary samples to detect altered pH, hypercarbia, and lactic acidosis. Adults admitted to the ED were screened for inclusion. We studied the agreement between the two methods for pH, pCO₂, and lactate with Bland-Altman bias plot analysis and receiver operating characteristic curves.

Results

One hundred ninety-seven paired analyses were included. Mean difference for pH between arterial and cap

SUBMITTER: Collot V 

PROVIDER: S-EPMC8279850 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature