Which of the following is NOT a reason to disqualify a driver from certification?

Normal resting ECG is a key component in evaluating a driver's cardiovascular health during the certification process. A normal electrocardiogram (ECG) indicates that there are no significant abnormalities in the heart's electrical activity at rest, suggesting that the driver does not have conditions that could adversely affect their ability to operate a commercial vehicle safely.

In contrast, severe palpitations, pre-syncope symptoms, and the presence of an enlarged heart all indicate potential cardiovascular issues that could pose a risk to the driver’s health or impair their driving capability. Severe palpitations may suggest an underlying heart condition, while pre-syncope (feeling faint) can indicate an increased risk of losing consciousness. An enlarged heart could point to various cardiac problems that require further evaluation. Thus, these conditions would be valid reasons for disqualifying a driver from certification due to the risks they present.