Final answer:
The most appropriate medication for the patient described is lisinopril, which is an ACE inhibitor commonly used to treat high blood pressure and heart failure.
Step-by-step explanation:
The most appropriate medication to give to a 62-year-old patient who presents with a 3-week history of progressive fatigue, shortness of breath with exertion, blood pressure of 150/92, bilateral basilar crackles, laterally displaced point of maximum impulse (PMI), and an echocardiogram showing left ventricular (LV) dilation and left ventricular ejection fraction (LVEF) of 32 is lisinopril. Lisinopril is an ACE inhibitor commonly used to treat or improve symptoms of cardiovascular conditions including high blood pressure and heart failure. It works by inhibiting the conversion of angiotensin I to angiotensin II, a potent vasoconstrictor, thereby reducing blood pressure and improving cardiac function.