This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chronic Interstitial (Restrictive, Infiltrative) Lung Diseases, Subject name: Pathology
Shock lung is seen in? 
Select and explain. 
A. Bronchiectasis, B. Lung carcinoma, C. ARDS, D. COPD
C: ARDS
Answer: C: ARDS 
Explanation: Ans is 'c' i.e., ARDS o ARDS is also known as 'adult' respiratory distress syndrome, shock lung, diffuse alveolar damage or acute lung injury. It is characterized by diffuse damage to alveolar capillary walls and alveolar cells (diffuse alveolar necrosis).o Sepsis is the most common cause of ARDS.