Figure 1.

Mean PaO₂ (A) and PaCO₂ (B) values of surfactant-depleted rabbits treated with Poractant alfa at doses of 50 mg/kg (white circles), 100 mg/kg (gray circles), and 200 mg/kg (black circles) or with Bovactant at doses of 50 mg/kg (white triangles) and 100 mg/kg (gray triangles). An untreated group of animals managed with mechanical ventilation served as control (black squares). BALs, bronchoalveolar lavages; B, baseline, before BALs. Mean ± SEM is shown. *P vs. Control <0.05; **P vs. Control <0.01; and ^#P vs. Bovactant (50 and 100 mg/kg) <0.05.