title: Closed circuit halothane anaesthesia. Use of the Narkotest as an in-line monitor in a nonpolluting technique.
abstract: Theoretical considerations of closed circuit anaesthesia using oxygen and halothane are examined. Clinical experience has confirmed the value of the Narcotest as a reliable in-line monitor of inspired halothane concentration, while the use of an oxygen analyser is a desirable adjunct. The advantages of economy and elimination of theatre pollution are discussed.
mesh_terms: D000769:Anesthesia, Inhalation / Q000295:instrumentation / Q000379:methods*; D006221:Halothane / Q000032:analysis; D008991:Monitoring, Physiologic / Q000295:instrumentation*; D010100:Oxygen / Q000032:analysis
chemical_list: D010100:Oxygen; D006221:Halothane