1-You have a 46 y/o African American female with diagnosis of myocardial infarction, hyperlipidemia and hypertension.  She was started on simvastatin 40 mg for her hyperlipidemia and metropolol tartrate 25 mg twice daily for cardiac and hypertension.  She remains hypertensive at 152/88.  Which medication class would you consider for her hypertension?