JBL Cardiology Practice Test

Measuring ejection fraction is significant in cardiology because it assesses the heart's pumping efficiency. Ejection fraction refers to the percentage of blood that is ejected from the ventricles with each heartbeat. A normal ejection fraction typically ranges from 55% to 70%, indicating that the heart is effectively pumping blood throughout the body.

By evaluating the ejection fraction, healthcare providers can gain valuable insights into a patient’s cardiac function. A reduced ejection fraction can signal heart conditions such as heart failure, cardiomyopathy, or damage resulting from a previous heart attack. It helps in diagnosing, monitoring, and determining the severity of various cardiovascular diseases, along with guiding treatment decisions.

Other response options, while relevant to heart health, do not directly address the primary role of ejection fraction. For example, assessing heart valve health and measuring blood return to the heart are important but are not the focus of ejection fraction. Clotting ability relates to blood properties rather than cardiac function.