Treat underlying disease
Fluids, vasoconstrictors to support BP in acute setting
Oxygen therapy: decreases pulmonary vasoconstriction
Diuretics: decrease RV filling volume
Calcium channel blockers: vasodilate the pulmonary arteries
Beta agonists (epoprostenol, iloprost): bronchodilate
Phlebotomy for severe hypoxia leading to polycythemia
Lung transplant or heart-lung transplant as last resort
Cor pulmonale
Cardiovascular
Acute respiratory distress syndrome
ACS
High altitude pulmonary edema
Acute Valve Dysfunction
Constrictive pericarditis
Aortic Dissection