Fig. 2From: Agreement of pCO2 in venous to arterial blood gas conversion models in undifferentiated emergency patientsScatter plots on all three models. Y-axis showing the difference between estimated and the arterial pCO2 in mmHg with correlation r (black dashed line). X-axis showing the time delay between venous and arterial sample analysis in seconds. Patients without supplemental oxygen in red, with ongoing supplemental oxygen in blueBack to article page