title: Hypoxemia after upper abdominal surgery: comparison of venous admixture and ventilation-perfusion inequality components, using a digital computer.
mesh_terms: D000005:Abdomen / Q000601:surgery*; D000328:Adult; D000368:Aged; D000698:Analgesia; D000758:Anesthesia; D001769:Blood; D002245:Carbon Dioxide / Q000097:blood; D003201:Computers; D005260:Female; D006801:Humans; D006863:Hydrogen-Ion Concentration; D000860:Hypoxia / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D010100:Oxygen / Q000097:blood; D010101:Oxygen Consumption; D011183:Postoperative Complications; D011650:Pulmonary Alveoli / Q000503:physiopathology; D001261:Pulmonary Atelectasis / Q000503:physiopathology; D011652:Pulmonary Circulation; D012119:Respiration; D014692:Ventilation-Perfusion Ratio
chemical_list: D002245:Carbon Dioxide; D010100:Oxygen