<qa>  What is the name of the class II or greater?- Uncontrolled hypertension systolic blood pressure BP 150 millimeters of mercury mmHg andor diastolic BP 100 mmHg, unstable angina, congestive heart failure CHF of any New York Heart Association NYHA classification Class II or greater, serious cardiac arrhythmia requiring treatment exceptions: atrial fibrillation, paroxysmal supraventricular tachycardia, history of myocardial infarction within 6 months of enrollment 