<prompt> Acute lung injury is caused by all of the following except -AspirationToxic gas inhalationCardiopulmonary bypass with hea lung machineNone  <response>: Ans. is None o ARDS is an acute diffuse alveolar injury that is caused by variety of aetiological factors. o Patients with ARDS are often seriously ill with some other disease and features ofARDS are superimposed on them. Causes ofARDS Direct lung injury o Pneumonia o Aspiration of gastric contents o Inhalational injury Toxic gases o Near drowning o Pulmonary, contusion o Fat embolism o Reperfusion pulmonary edema o Post lung transplantation or o Pulmonary embolectomy Indirect lung injury Sepsis Severe trauma o Acute pancreatitis Cardiopulmonary bypass o Massive transfusions o Drug overdose Following information has been added in Pie of Robbins o Most of ARDS are associated with an underlying etiology such as sepsis. In the absence of any etiologic association, such cases are called acute interstitial pneumonia AIP 