system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 25-year old athlete has an ejection fraction of 0.50 and an end-systolic volume of 50 mL. What is his end-diastolic volume?
assistant
The correct answer is  Ejection fraction = X 100 EDV - SV = ESV (end-systolic volume) If ejection fraction is 0.5 or 50%, it means 50% of the EDV is pumped out as stroke volume; and remaining 50% is left behind as end-systolic volume (ESV). ESV given is 50 mL; so EDV would be 100 mL.