This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General surgery, Subject name: Surgery
[{'content': 'IV fluid replacement in a trauma patient is determined by \nSelect and explain. \nA. Urine output, B. Chest condition, C. CVP, D. BP', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Adequacy of fluid replacement should be checked with hemodynamic stability and urine output. When very large fluid shifts are expected and the patient has compromised renal insufficiency it is necessary to monitor fluid status using central venous pressure(CVP). Manipal manual of surgery-Shenoy,4th edition,pg', 'role': 'assistant'}]