What are causes of ARDS/ALI?

May directly affect alveoli or not Direct: Pneumonia, Aspiration, near drowning, toxic inhalation (O2, smoke, chemicals), lung contusion. Indirect: Sepsis, trauma, upper airway obstruction, cardiopulmonary bypass, anaphylaxis, drugs (chemo, amiodarone...), acute pancreatitis, hematological causes (transfusions/ DIC)