动脉血气显示:pH 7.41,PaO2 52 mmHg(100% FiO2),PaCO2 40 mmHg,HCO3- 24.8 mM和87% SaO2。 A 50-yr-old man undergoing resection of the upper right lung for neoplasia developed hypoxemia 15 min after the start of OLV. Preoperative examination revealed satisfactory cardiopulmonary status. Preoperative...