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: Physiology
[{'content': "True about caisson's disease \nSelect and explain. \nA. O2 release from tissues, B. CO2 release from tissues, C. N2 release from tissues, D. H2 release from tissues", 'role': 'user'}, {'content': 'Answer: C \nExplanation: An acute disorder involving the formation of nitrogen bubbles in the body fluids, caused by a sudden drop in external pressure, as during a too-rapid ascent from diving, and resulting in pain in the lungs and joints and faintness.Ref: Textbook of pathology Harsh Mohan 6th edition Page no; 123', 'role': 'assistant'}]