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Effect of bacterial filters on spirometry measurements
  1. A W A Kamps,
  2. K Vermeer,
  3. R J Roorda,
  4. P L P Brand
  1. Department of Paediatrics, Isala Klinieken, PO Box 10500, 8000 GM Zwolle, Netherlands
  1. Dr BrandP.L.P.Brand{at}isala.nl

Abstract

Lung function measurements with and without a disposable bacterial filter were compared in 60 children. Although statistically significant, the reduction of lung function measurements caused by using bacterial filters was small and clinically irrelevant (2–4% of predicted for forced expiratory volume in one second and vital capacity).

  • lung function
  • bacterial filters
  • asthma
  • cystic fibrosis

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