title: Inspired and expired gas concentrations in man during carbogen breathing.
abstract: Capnometer measurements during 46 evaluable treatments in which patients were administered carbogen (95% O2, 5% CO2) have demonstrated that the mean inspired carbon dioxide level was 3.1% (range 0-4.7) and the mean inspired oxygen concentration was 70.6% (range 26.4-94). The explanation for this observation is leakage of air into the breathing system during radiotherapy.
authors.affiliation: Mount Vernon Centre for Cancer Treatment, Mount Vernon Hospital, Northwood, Middlesex, UK.
authors.forename: P J
authors.initials: PJ
authors.lastname: Hoskin
authors.forename: O
authors.initials: O
authors.lastname: Abdelath
authors.forename: H
authors.initials: H
authors.lastname: Phillips
authors.forename: S
authors.initials: S
authors.lastname: Gilligan
authors.forename: M I
authors.initials: MI
authors.lastname: Saunders
authors.forename: P
authors.initials: P
authors.lastname: Broderick
authors.forename: H
authors.initials: H
authors.lastname: Baddeley
mesh_terms: D019296:Capnography; D002245:Carbon Dioxide / Q000008:administration & dosage* / Q000032:analysis*; D006801:Humans; D008397:Masks; D010100:Oxygen / Q000008:administration & dosage* / Q000032:analysis*; D011838:Radiation-Sensitizing Agents / Q000008:administration & dosage*; D011878:Radiotherapy; D012143:Respiratory Physiological Phenomena
chemical_list: D011838:Radiation-Sensitizing Agents; D002245:Carbon Dioxide; C011700:carbogen; D010100:Oxygen