title: Selective oxygen leak. A potential cause of patient hypoxia.
abstract: A case is described where a patient received less oxygen than was set on the Rotameters. The cause was traced to a selective leak of oxygen via an open cyclopropane needle valve. Several recommendations are put forward to prevent a recurrence.
mesh_terms: D000769:Anesthesia, Inhalation / Q000295:instrumentation*; D004868:Equipment Failure; D005260:Female; D006801:Humans; D000860:Hypoxia / Q000209:etiology; D007431:Intraoperative Complications / Q000209:etiology; D008875:Middle Aged; D010100:Oxygen / Q000008:administration & dosage*; D012212:Rheology; D012122:Ventilators, Mechanical
chemical_list: D010100:Oxygen