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.
Typically, the left ventricle ejects 55% or more of its blood volume with each beat, so a normal ejection fraction is 55% (0.55) or higher. An ejection fraction of 40 - 50% is considered âbelow normal.â Patients with heart failure most often have ejection fractions that are less than 40%. Terminology of âEjection Fractionâ It is important to note that when doctors say the words âejection fractionâ they are referring to the ejection fraction of the left ventricle.