<prompt> Which of the following is NOT seen in ARDS: March 2013Pulmonary edemaHypercapniaHypoxemiaStiff lung  <response>: Ans. B i.e. Hypercapnia ARDS Diffuse alveolar damage Shock lung Hypoxia, Hypocapnia, Acute onset of respiratory failure, Ground glass appearance on chest X-ray Air bronchogram sign is positive Associated with: Pancreatitis, - Trauma, - Multiple blood transfusions etc. 