This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Physiology
Ejection fraction is 
Select and explain. 
A. SV/EDV, B. EDV/SV, C. ESV/EDV, D. SV/EDV
A: SV/EDV
Answer: A: SV/EDV 
Explanation: It is the volumetric fraction of fliud ejected from the chamber on each contraction. Normal is greater than 60%