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Thorax 47:719-720 doi:10.1136/thx.47.9.719
  • Research Article

Lung function testing in adults with preferential nasal breathing.

  1. C F Stanford,
  2. B Martin,
  3. D P Nicholls,
  4. D Watson
  1. Department of Respiratory Medicine, Royal Victoria Hospital, Belfast.

      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.