title: Arterial blood gas tensions during upper gastrointestinal endoscopy.
abstract: Arterial blood gas tensions were measured before and during upper gastrointestinal endoscopy, with (group I) and without (group 2) sedation with intravenous diazepam. There was a highly significant fall in the PaO2, which occurred in both groups and was therefore not attributable to diazepam. Measurement of FEV, and FVC before endoscopy had no predictive value for those patients whose PaO2 fell the most.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001145:Arrhythmias, Cardiac / Q000209:etiology; D001784:Blood Gas Analysis; D002245:Carbon Dioxide / Q000097:blood*; D003975:Diazepam; D005260:Female; D005541:Forced Expiratory Volume; D005773:Gastroscopy / Q000009:adverse effects; D006801:Humans; D008012:Lidocaine; D008297:Male; D008875:Middle Aged; D010100:Oxygen / Q000097:blood*; D014797:Vital Capacity
chemical_list: D002245:Carbon Dioxide; D008012:Lidocaine; D003975:Diazepam; D010100:Oxygen