Acute respiratory distress syndrome (ARDS) is a lethal respiratory disease, wherein lungs cannot adequately deliver oxygen to the vital body organs. Pneumonia, acute pancreatitis, inhalation of smoke, or chemicals and certain conditions could result in inflammation of lungs. Due to inflammation of lungs, fluid from surrounding blood vessels enter the air sacks of the lungs, resulting in difficulty in breathing. This condition is known as acute respiratory distress syndrome or ARDS.