Causes of Dyspnea - Differential Diagnosis

Cardiovascular 

 - Myocardium: Heart failure, CAD/ ACS, Valvulopathy, Cardiomyopathy

 - Electrical: Arrhythmia, Tachyarrythmias, Bradyarrythmias

 - Pericardium: Constrictive, Tamponade

Pulmonary: 

 - Airways: Asthma, COPD, Bronchiectasis

 - Parenchyma: ILD

 - Alveoli: Water, Pus, Blood

 - Vasculature: PE, Pulmonary HTN, Vasculitis, Hepatopulmonary Syndrome

 - Pleura: Effusion, Pneumothorax

Chest wall: Kyphoscoliosis, Obesity, Flail chest

Neuromuscular: Myasthenia, Guillan Barre, ALS, Transverse myelitis

Hematology: Anemia

Other: Acidosis, T4, Anxiety, Deconditioning, Pain



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