Which is very bad news in a world already and increasingly subject to extreme climatic events. The state of our soils will play an important role in whether we can mitigate and buffer the effects of this climate chaos. Fertile soil is a potentially vast carbon sink, second only to the worldâs oceans.
Quick Answer. Ejection fraction normally refers to measurements related to the left ventricle of the heart, and patients with an ejection fraction between 55 and 70 percent are in the normal range, notes Cleveland Clinic. Ejection fraction measures how much blood is pumped from the patient's left ventricle during heart contractions. Keep Learning.
Ejection fraction is calculated by the amount of blood pumped out of the heart with each beat divided by the amount of blood in the heart at its fullest. In other words, ejection fraction measures what percent of the blood in the heart is pumped out when the heart beats. A normal range for ejection fraction is 65 percent, plus or minus 12. That means that normal, healthy hearts only pump about 65 percent of the blood out of their heart with each beat. There are multiple ways to measure ejection fraction, including: Echocardiogram (ultrasound of the heart)