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': 'Best treatment of subdural haemotoma in a deteriorating patient \nSelect and explain. \nA. By I/V Mannitol, B. Oxygenation, C. Use of steroids, D. Surgical evacuation', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Subdural haematoma is the collection of blood between the dura and arachnoid. types- acute sub, subacute and chronic subdural haematoma acute-it is due to injury to coical veins and often due to laceration of coex of brain. chronic-it is due to rupture of veins causing gradual collection of bloodin sub dural space. treatment acute SDH-antibiotics ,anticonvulsants, surgical decompression is done by craniotomy (i.e; decompressive craniectomy) chronic SDH- standard craniotomy or mini craniotomy or burrhole craniostomy and evacuation of Chronic-SDH fluid is done ,antibiotics,anticonvulsants (Ref: greenberg handbook of neurosurgery, 8th ed, p-895)', 'role': 'assistant'}]