title: Oxygen delivery systems--a comparison of two devices.
abstract: Two low-volume, variable performance oxygen delivery systems were compared in conscious spontaneously breathing volunteers. Oropharyngeal oxygen concentrations were measured during periods of nose and mouth breathing. The systems were studied at oxygen flow rates of 2 or 4 litres/minute. The performance of both systems was similar under the test conditions but the nasal catheter is preferable in terms of cost.
authors.affiliation: Department of Anaesthetics, United Medical School, Guy's Hospital, London.
authors.forename: J E
authors.initials: JE
authors.lastname: Fairfield
authors.forename: T
authors.initials: T
authors.lastname: Goroszeniuk
authors.forename: A M
authors.initials: AM
authors.lastname: Tully
authors.forename: A P
authors.initials: AP
authors.lastname: Adams
mesh_terms: D000762:Anesthesia Recovery Period; D002408:Catheters, Indwelling; D006801:Humans; D008397:Masks; D009666:Nose; D010100:Oxygen / Q000008:administration & dosage*
chemical_list: D010100:Oxygen