Fig. 2From: Energy expenditure in critically ill patients estimated by population-based equations, indirect calorimetry and CO2-based indirect calorimetry a Recorded VO2, VCO2 and MV from Patient 18. The mean and trend line of VO2 are also displayed. b EE(VCO2) and EE(IC) were calculated from recorded VO2 and VCO2 Back to article page