Definition One lung ventilation-Hypoxia treatment FiO2 100 % Recheck positioning of double-lumen tube for correct placement using fiberoptic bronchoscope. Suction both lumens of double-lumen tube for secretions or mucous plugs May need to notify surgeons to stop and return to two-lung ventilation. Or at least ask for periodic reinflation/recruitment maneuvers of the nondependent collapsed lung. […]