title: Lung function testing in adults with preferential nasal breathing.
abstract: Three adult patients with asthma with preferential nasal breathing were found to have a typical pattern of lung function test results with substantial between test variation. This condition can be identified as a cause of unsatisfactory performance in respiratory tests by observing the patient's reaction after the nostrils have been occluded.
authors.affiliation: Department of Respiratory Medicine, Royal Victoria Hospital, Belfast.
authors.forename: C F
authors.initials: CF
authors.lastname: Stanford
authors.forename: B
authors.initials: B
authors.lastname: Martin
authors.forename: D P
authors.initials: DP
authors.lastname: Nicholls
authors.forename: D
authors.initials: D
authors.lastname: Watson
mesh_terms: D000368:Aged; D001249:Asthma / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008168:Lung / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D009666:Nose; D012119:Respiration / Q000502:physiology*; D012129:Respiratory Function Tests / Q000379:methods