Nawal is an 81-year-old female nom-smoker. She was diagnosed with stage 2 hypertension by a practice colleague 1 month ago. It is thought the cause is probably arterial stiffening. Her clinic blood pressure was 174/100 mmHg. She was not identified as having "white-coat" hypertension and your colleague has prescribed an antihypertensive drug. She returned for a follow up appointment. Nawal has no significant medical history. Nawal's total cholesterol is 150 mg/dl and her HDL is 62 mg/dl. Fasting, Glucose is 90 mg. There is no left ventricular hypertrophy or atrial fibrillation on ECG. Her 10-year cardiovascular risk is greater than 20%. You measure her cline blood pressure, and it is 165/95 mmHg. You decide to add a second antihypertensive, Nawal returns to the clime one month later. Her clinic blood pressure is 154/90 mmHg and her blood results are acceptable. You decide to: