Figure 2

Changes in the lung function indices. a/A, arterial O₂ partial pressure to alveolar O₂ partial pressure ratio; A–a, alveolar-arterial; PaO₂, partial pressure of oxygen; FiO₂, fraction of inspired oxygen; T1, post-induction; T2, ACC 1 h; T3, ACC 6 h; T4, ACC 12 h; T5, ACC 24 h. *P < 0.05 versus baseline.