- COPD
- CHF
- Pulmonary Embolism (PE)
- GERD (Aspiration in GERD)
- Tumor (mechanical airway obstruction)
- ACEI induced cough.
- Cystic fibrosis
- Bronchiectasis
- Bronchiolitis obliterans
- Hypersensitivity pneumonitis
- Allergic bronchopulmonary aspergillosis (ABPA)
- Vocal cord dysfunction / paralysis
- Central airway obstruction
- Extrathoracic obstruction
- Eosinophilic pneumonia
- Foreign-body aspiration
- Laryngotracheal mass
- Tracheal stenosis
- Tracheomalacia
- Angioedema
- Airway edema from inhalation injury
- Churg-Strauss syndrome
- Factitious disorder
- Malingering
- Conversion disorder
Further Reading
Respir Care 2008;53(5):568–580. http://www.rcjournal.com/contents/05.08/05.08.0568.pdf