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': 'History of lucid interval is present in \nSelect and explain. \nA. EDH, B. SAH, C. ICH, D. Rupture of aneurysm', 'role': 'user'}, {'content': 'Answer: A \nExplanation: .extradural haematoma is the collection of blood in the extradural space between the dura and skull. most common site is temporoparietal region . usually , it is associated with fracture of temporoparietal region. immediately after injury, there is transient loss of consciousness and the patient soon becomes normal. later after 6-12 hours, he again falls ill and condition deteriorates. this is the time taken to develop raising intracranial pressure , coning and its effects. this crucial time gap is caleed lucid interval. (Ref : SRB&;s Manual of Surgery, 5th editin , pg no. 1095)', 'role': 'assistant'}]