National Registry of Certified Medical Examiners (NRCME) DOT Practice Exam

A driver post-myocardial infarction with an EF of 50% and cleared by her cardiologist should be?

1. Certified for 3 months

2. Certified for 1 year

3. Certified for 2 years

4. Disqualified

The correct answer is: Disqualified

For a driver who has experienced a myocardial infarction, the assessment of their eligibility to drive is contingent on several factors, including their left ventricular ejection fraction (EF) and the recommendations of their healthcare provider. An EF of 50% indicates reduced cardiac function, which raises concerns about the driver's ability to operate a commercial vehicle safely. When cleared by a cardiologist, it is essential to consider the specific guidelines and regulations pertaining to this situation. Generally, a driver with a myocardial infarction must undergo a thorough evaluation, including considerations of their EF and overall cardiac health. In the context of the Department of Transportation (DOT) guidelines, a driver with an EF of 50% would typically not meet the criteria for certification. This is due to the risk of potential complications and the driver's impaired ability to respond to stress or emergencies that could arise while driving. Thus, disqualifying the driver is in alignment with ensuring safety on the roads, reflecting the importance placed on cardiac health for those operating commercial vehicles. It emphasizes the regulatory framework that aims to protect not only the drivers themselves but also the public from the risks associated with medical conditions affecting fitness to drive.