The following question refers to Section 7.6 of the 2022 AHA/ACC/HFSA Guideline for the Management of Heart Failure.
Mr. Flo Zin is a 64-year-old man who comes to discuss persistent lower extremity edema and dyspnea with mild exertion. He takes amlodipine for hypertension but has no other known comorbidities. In the clinic, his heart rate is 52 bpm and blood pressure is 120/70 mmHg. Physical exam reveals mildly elevated jugular venous pulsations and 1+ bilateral lower extremity edema. Labs show an unremarkable CBC, normal renal function and electrolytes, a Hb A1c of 6.1%, and an NT-proBNP of 750 (no prior baseline available). On echocardiogram, his LVEF is 44% and nuclear stress testing was negative for inducible ischemia. What is the best next step in management?
A