2) A 74 year-old woman diagnosed with HTN when she was 40 presents with worsening BP control over 3 years. She is now on lisinopril, amlodipine, atenolol, clonidine, and HCTZ with BP 162/88.

• 2) A 74 year-old woman diagnosed with HTN when she was 40 presents with worsening BP control over 3 years. She is now on lisinopril, amlodipine, atenolol, clonidine, and HCTZ with BP 162/88.

• Labs:

• Na 136 Cl 101 BUN/creatinine 18/2.0

• K 3.0 Bicarb 31

• Urinary elecrrolytes: Na 48 K 28 Cl 82

• Aldosterone 24 ng/dl PRA 6.5 ng/mL/hr

• Which of the following teses would be the most appropriate next step?

• CT of the adrenal gland

• Dexamethasone suppression test

• Urine diuretic screen

• MRA Renal Arteries

• Fecal laxative screen