Bronchodilator Reversibility
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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