Fig. 3

ROC curves for prediction of RBC transfusion and hemostatic procedure by ΔPCO_2fem and SvO_2fem. A ROC curve for prediction of pRBC_H6 by ΔPCO_{2 fem} at admission. B ROC curve for prediction of pRBC_H6 by SvO_{2 fem} at admission. C ROC curve for prediction of hemostatic procedure during the first 6 h of admission by ΔPCO_{2 fem} at admission. D ROC curve for prediction of hemostatic procedure during the first 6 h of admission by SvO_{2 fem} at admission. AUC area under the curve. ΔPCO_{2 fem} femoral venous-arterial difference in carbon dioxide pressure. pRBC_H6 transfusion of at least 1 pack of red blood cell during the first 6 h of admission. ROC Receiver operating characteristics. SvO_{2 fem} femoral venous oxygen saturation