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Test Findings
 
 

Bronchodilator Reversibility

 
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Overview

Bronchodilator reversibility is indicative of asthma, though some reversibility may be present in COPD.
  • How to Assess

  • Perform spirometry before and after administering a bronchodilator - usually salbutamol.
  • Interpretation

  • Significant reversibility is defined as a 12% or >200mL increase in FEV₁ or FVC after bronchodilator.
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