This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Medicine
The commonest of death in ARDS is 
Select and explain. 
A. Hypoxemia, B. Hypotension, C. Non-pulmonary organ failure, D. Respiratory failure
C: Non-pulmonary organ failure
Answer: C: Non-pulmonary organ failure 
Explanation: Moality estimates for ARDS range from 26 to 44%.Moality in ARDS is largely attributable to nonpulmonary causes,with sepsis and nonpulmonary organ failure accounting for >80% of deaths.Increasing age,chronic liver disease,cirrhosis,chronic alcohol abuse,chronic immunosuppression,sepsis,chronic renal disease,any nonpulmonary Organ failure have been linked to increased ARDS moality. Ref:Harrison's disease-18th edition,page no:2209/