This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General, Subject name: Physiology
[{'content': 'A man weighing 70 kg has a hematocrit of 45%. What would he his approximate plasma volume? \nSelect and explain. \nA. 2310 mL, B. 2695 mL, C. 2890 mL, D. 3080 mL', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. (d) 3080mL(Ref: Ganong Review of medical physiology, 21st ed p.2)8% of body weight is blood volumeSo, here for 70 kg man, Blood volume is 5.6 Litres (70*8/100)Blood Volume = Plasma volume/1-hematocritSo, Plasma volume = Blood volume*(1-hematocrit)Here, Plasma volume =5.6*(1-0.45)=3080mL', 'role': 'assistant'}]