Primary             Pneumonia                         Bacterial                         Viral                         Fungal                         Aspiration                         Atypical             Vasculitis             BOOP (high risk)             Post-treatment pulmonary embolism             Pulmonary hemorrhage             Chemical pneumonitis Secondary             Trauma (Contusion)             Sepsis/Septic Shock             Post-Cardiac/Thoracic surgery             Lung transplant (graft failure/rejection)             Pancreatitis,             Other

Table 3: Causes of Respiratory Failure in which ECMO May Be Considered.