Bronchoconstriction

• COPD
• Asthma

• Bronchiolitis (peds)

• Wheezing differential
  • Intrathoracic lower airway
    • Aspirated foreign body
    • Bronchiectasis
    • Bronchiolitis
    • Bronchiolitis obliterans
    • Cardiac asthma/CHF
    • Carcinoid tumors
    • Environmental - silo farmers
    • Parasitic in endemic
    • Reactive airway
  • Intrathoracic central airway
    • Foreign body
    • Tracheal stenosis/tumors
    • Tracheomalacia
    • Mucus plugs
    • Vascular rings/aneurysms
    • Mediastinal mass
  • Extrathoracic
    • Foreign body
    • Anaphylaxis
    • Vocal cord edema/paralysis
    • Paradoxical vocal cord motion
    • Laryngeal stenosis
    • Tonsillar hypertrophy
    • Goiter
    • Postnasal drip