title: Dyspnea: pathophysiology and differential diagnosis.
mesh_terms: D000138:Acidosis / Q000175:diagnosis / Q000503:physiopathology; D000740:Anemia / Q000175:diagnosis / Q000503:physiopathology; D001007:Anxiety; D006328:Cardiac Catheterization; D002302:Cardiac Output; D003937:Diagnosis, Differential; D004417:Dyspnea / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D006331:Heart Diseases / Q000175:diagnosis / Q000503:physiopathology; D006801:Humans; D006976:Hypertension, Pulmonary / Q000175:diagnosis / Q000503:physiopathology; D000860:Hypoxia / Q000175:diagnosis / Q000503:physiopathology; D008170:Lung Compliance; D010101:Oxygen Consumption; D012125:Respiratory Center / Q000503:physiopathology; D012129:Respiratory Function Tests; D012140:Respiratory Tract Diseases / Q000175:diagnosis / Q000503:physiopathology; D014692:Ventilation-Perfusion Ratio; D014939:Work of Breathing