Which pulmonary function tests (PFTs) findings suggest bronchiectasis?

Updated: Jul 23, 2019
  • Author: Ethan E Emmons, MD; Chief Editor: Zab Mosenifar, MD, FACP, FCCP  more...
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Pulmonary function test results may be normal or abnormal; abnormalities are as follows:

  • Abnormalities may reflect underlying comorbidities and predisposing conditions

  • The most common abnormality is an obstructive airway defect, which is not usually reversible with bronchodilator therapy

  • A subgroup of patients have hyperreactive airways that will respond to bronchodilators

  • Yearly decline in FEV1 is greater in patients with bronchiectasis

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