Obstructive Lung Disease

• Diagnosis:
  Decrease in FEV1 and FVC, but greater decrease in FEV1, so decreased FEV1/FVC ratio
• Pneumonic:
  ABCT (etiologies)
  
  Asthma
  Bronchiectasis
  Cystic fibrosis
  Tracheal or bronchial obstruction
• Notes:
  Characterized by airway narrowing
• See Also:
  Restrictive Lung Disease
  COPD
  Asthma