What is the significance of obtaining a driver's ejection fraction?

Obtaining a driver's ejection fraction is significant because it reflects the efficiency of the heart. Ejection fraction is a measurement used to determine the percentage of blood that is pumped out of a filled ventricle with each heartbeat. A normal ejection fraction indicates that the heart is functioning effectively, delivering adequate blood flow to the body, which is critical for sustaining physical activity, especially in commercial drivers who need to maintain alertness and physical capability.

Monitoring ejection fraction can be particularly relevant in assessing a driver's cardiovascular health as it can indicate potential heart issues that may impair their ability to drive safely. A low ejection fraction can suggest heart failure or other cardiac conditions, which would be essential for a medical examiner to take into consideration before certifying a driver’s fitness to operate a vehicle.