Managing MRAs in HF Care

A 55-year-old man with a history of heart failure with preserved ejection fraction (HFpEF; left ventricular ejection fraction [LVEF] 55%) presents for evaluation. He endorses dyspnea on exertion, general fatigue, and labile weight. Recent right heart catheterization findings included right atrial pressure 11 mm Hg and pulmonary wedge pressure 15 mm Hg. His medical history includes coronary artery disease, three coronary artery bypass graft surgeries, hypertension, hyperlipidemia, obstructive sleep apnea, obesity, and a solitary kidney. His medications include aspirin 81 mg once daily, clopidogrel 75 mg once daily, bumetanide 2 mg once daily, dapagliflozin 10 mg once daily, losartan 50 mg once daily, metoprolol tartrate 25 mg twice daily, omeprazole 20 mg once daily, and rosuvastatin 40 mg once daily.

His blood pressure (BP) is 109/74 mm Hg, heart rate (HR) is 71 bpm, and weight in the clinic is 129.9 kg. Laboratory study results include potassium (K+) level 3.9 mEq/L and creatinine (Cr) level 1.2 mg/dL with estimated glomerular filtration rate (eGFR) >60 mL/min/m2.

Which one of the following is the best next step?

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