A 62-year-old male presents with progressively worsening dyspnea on exertion, orthopnea, and paroxysmal nocturnal dyspnea over the last 6 months. Physical examination reveals a wide pulse pressure, a bounding peripheral pulse, and a high-pitched, decrescendo diastolic murmur best heard at the left sternal border with the patient leaning forward. What is the most likely diagnosis?

The correct answer to the question "A 62-year-old male presents with progressively worsening dyspnea on exertion, orthopnea, and paroxysmal nocturnal dyspnea over the last 6 months. Physical examination reveals a wide pulse pressure, a bounding peripheral pulse, and a high-pitched, decrescendo diastolic murmur best heard at the left sternal border with the patient leaning forward. What is the most likely diagnosis?" is Option B: Aortic Regurgitation.

The other options — A) Mitral Stenosis, C) Tricuspid Stenosis, D) Pulmonic Stenosis — are incorrect for this USMLE Exam Prep question. As explained above: The symptoms of heart failure, wide pulse pressure, bounding pulse, and a decrescendo diastolic murmur are classic findings for aortic regurgitation, indicating blood flowing back into the left ventr…