This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Trauma, Subject name: Surgery
[{'content': 'Treatment of choice of flail chest is \nSelect and explain. \nA. Ext. fixation of flail segment & mech ventilation, B. Strapping, C. O2 administration, D. Intrapleural local analgesia', 'role': 'user'}, {'content': "Answer: A \nExplanation: .It is fracture of two or more consecutive ribs, with each rib having two or more fracture sites. Such segment is called as flail segment. Treatment \x02 Intercostal tube drainage. \x02 Applying clips to fracture ribs and fi xing above and below to normal ribs. \x02 Antibiotics like penicillins, cefotaxime. \x02 Blood transfusion, IV fluids. \x02 Bronchodilators, steroids. \x02 Ventilator suppo with IPPV--IPPV is treatment of choice. Assisted ventilation is required for several days until the chest wall stabilises. If ventilator suppo is required for more than 10 days, then tracheo stomy is done to prevent laryngeal stenosis which can occur due to prolonged endotracheal intubation. \x02 Thoracotomy--when required only. Ref: SRB's Manual of Surgery, 4th Edition, pg. no. 1196", 'role': 'assistant'}]