Cardiogenic/ biventricular heart failure, VSD, congenital defect, aortic aneurysm, cardiomyopathy, valvular disease, RV infarction, DVT, pulm embolism, lymphedema/secondary lymphedema, Ischemia, peri/myo/endo- carditis, tricuspid stenosis/regurgitation , shock- cardiogenic, septic, hypovolemic, neurogenic, anaphylactic , OD, chronic alcohol ingestion, aspiration, encephalitis.