5. A 71-year-old male patient with HFrEF, NYHA functional class II symptoms, and dyslipidemia, presents to you for routine follow-up. He is on enalapril 10 mg twice daily, spironolactone 25 mg once daily, carvedilol 25 mg once daily, furosemide 40 mg once daily, and rosuvastatin 20 mg once daily. He goes for a 30 minute walk every morning without chest pain but has some shortness of breath. However, these symptoms are not new and have not gotten worse since his last visit ~3 months ago.