This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'First line of therapy in treatment of shock: \nSelect and explain. \nA. Antibiotics, B. Ionotropic agents, C. Chronotropic agents, D. IV fluids', 'role': 'user'}, {'content': 'Answer: D \nExplanation: In all cases of shock, regardless of classification, hypovolemia and inadequate preload must be addressed before other therapy is instituted. First-line therapy, therefore, is intravenous access and administration of intravenous fluids.', 'role': 'assistant'}]