If a driver had a Myocardial Infarction (MI), followed by coronary artery bypass graft (CABG) several months ago, should he have an ETT (exercise tolerance test) as recommended in the MI guidelines but not in the CABG guidelines?

Medical Examiners should follow the most current clinical guidelines; therefore after an MI, drivers should obtain an ejection fraction and ETT before returning to work and because of the CABG keeping the driver off work 3 months (not 2 as for MI) to allow time for sternal wound healing.