Postoperative hypoxaemia.
D000368:Aged; D000758:Anesthesia / Q000009:adverse effects; D001158:Arteries; D002302:Cardiac Output; D006452:Hemoglobinometry; D006801:Humans; D000860:Hypoxia / Q000209:etiology* / Q000628:therapy; D010100:Oxygen / Q000097:blood; D010102:Oxygen Inhalation Therapy; D011183:Postoperative Complications
D010100:Oxygen