Figure 3From: PaCO2 and alveolar dead space are more relevant than PaO2/FiO2 ratio in monitoring the respiratory response to prone position in ARDS patients: a physiological studyCorrelation between changes in alveolar dead space (ΔVD alv /V T ) and changes in compliance of the respiratory system (ΔCrs, left) or in PaO 2 /FiO 2 (ΔPaO 2 /FiO 2 , right) at each time of the study when compared with the supine position.Back to article page