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: Physiology
Normal capillar wedge pressure ? 
Select and explain. 
A. 0-2 mm Hg, B. 5-10 mm Hg, C. 15-20 mm Hg, D. 20-30mm Hg
B: 5-10 mm Hg
Answer: B: 5-10 mm Hg 
Explanation: Ans. is 'b' i.e., 5-10 mm HgNormal capillary Wedge pressure is 4-12mm Hg. It is a measure of left atrial pressure.