The following are features of adult respiratory distress syndrome except:: (A) Hypoxia, (B) Hypocapnia, (C) Low protein pulmonary edema, (D) Stiff lungs
Answer is C. ARDS has type 1 respiratory failure and hence choice A and B are correct. Stiff lungs are explained by decreased lung compliance. Since ARDS is an exudate, it is characterized by high protein pulmonary edema.