Fig. 1

Effects of R-100 on pulmonary gas exchange evaluated by PaO2/FiO2 ratio (a) and pulmonary shunt fraction (b). PaO2 is a oxygen partial pressure (mm Hg) in arterial blood. FiO2 represents oxygen partial pressure (mm Hg) in inspired air. Data are expressed as mean ± SEM. *P < 0.05 vs. control