A. When the heart rate remains elevated and beta-blockers are contraindicated (i.e. asthmatic) with normal left ventricular systolic function
B. When atrial fibrillation is present during a ST elevation myocardial infarction, an ejection fraction of 30%, and elevated heart rates
C. When hypertension is uncontrolled after an inferior ST elevation myocardial infarction and an ejection fraction of 25%.
D. Non-dihydropyridine calcium channel blockers are not indicated during ST segment elevation myocardial infarctions