<prompt> A man weighing 70 kg has a hematocrit of 45. What would he his approximate plasma volume?2310 mL2695 mL2890 mL3080 mL  <response>: Ans. d 3080mLRef: Ganong Review of medical physiology, 21st ed p.28 of body weight is blood volumeSo, here for 70 kg man, Blood volume is 5.6 Litres 708100Blood Volume Plasma volume1-hematocritSo, Plasma volume Blood volume1-hematocritHere, Plasma volume 5.61-0.453080mL 