A white 68 year-old woman presents to the primary care center for establishment of care. Her medical history is significant for heart failure with an ejection fraction of 38%. Her current medications include torsemide 40 mg and enalapril 2.5 mg. Her shortness of breath improved a lot since she started to take these medications. Of the following, which medication, if added to this patient’s current medications, would reduce her heart failure-related mortality?

By usmlevideoss