What is the expected physical examination finding in a patient with aortic regurgitation?

In a patient with aortic regurgitation, the expected physical examination finding is a diastolic murmur, which is best heard along the left sternal border. This murmur occurs as a result of turbulent blood flow from the aorta back into the left ventricle during diastole. The presence of this diastolic murmur is a hallmark sign of aortic regurgitation and serves as a significant indicator to aid in diagnosis.

The characteristics of this murmur can vary depending on the volume and pressure differences, as well as the patient's overall hemodynamic status, but it is consistently associated with the condition. Recognizing this finding during a physical examination is crucial for healthcare providers to identify aortic regurgitation and evaluate its severity and potential impact on the patient's cardiac function.