Answer :
Answer: D. Listen closely to her abdomen.
Explanation: it is important to consider secondary causes for this woman's hypertension because of its severity, rapidity of progression, and lack of response to therapy. While you will most likely add a fourth medicine, it is important to carefully examine the abdomen for the presence of renal artery bruits. These are usually heard best in the upper quadrants. It may be necessary to have the patient hold her breath, to have a very quiet room, and to listen with the diaphragm for a very soft, high-pitched sound with systole. It may also help to simultaneously feel the patient's pulse (a bruit with both a systolic and diastolic component is very specific for a significant blockage, while a lone systolic bruit may not be abnormal). Obtaining a CT scan is not likely to be useful, and you may save the delay, expense, and inconvenience of a nephrology referral if you can hear a bruit