What is the classification for patients who are asymptomatic but have a left ventricular ejection fraction below 40?

A left ventricular ejection fraction (LVEF) below 40% indicates that the heart is not pumping efficiently, which can lead to various cardiovascular complications, even in asymptomatic patients. According to FMCSA guidelines, drivers with such a low LVEF classification are considered a significant risk for sudden cardiac events while operating a vehicle. Therefore, they cannot be certified to drive as they pose a danger not only to themselves but also to others on the road. This policy prioritizes safety and underscores the importance of strict medical assessments in commercial driving, ensuring that drivers with serious cardiovascular impairments are appropriately evaluated and managed.