Background: Sometimes oxygen is given to patients during fiberoptic bronchoscopy to prevent arterial hypoxemia, but oxygen usually is given to patients with SPO2 less than 90%. The purpose of this study was to evaluate the patient's oxygen requirement according to SPO2 and its relationship with Pulmonary Function Test (PFT). Methods: From January 2006 to April 2007, 146 patients who needed fibe...
