Question: what is an ejection fraction of 25 of the heart?
Answer: It pumps oxygen-rich blood up into the upward (ascending) aorta to the rest of the body. An LV ejection fraction of 55 percent or higher is considered normal. An LV ejection fraction of 50 percent or lower is considered reduced. An LV ejection fraction between 50 and 55 percent is usually considered "borderline."