Mr. Santos, a 65-year-old Male, Presents to the Clinic with Complaints of Shortness of Breath, Fatigue and Swelling in His Legs. He Has a History of Hypertension and Coronary Artery Disease. on Physical Examination, Crackles Are Heard in His Lungs and His Jugular Veins Are Distended. an Echocardiogram Reveals a Decreased Ejection Fraction of 35