A valvular lesion can be diagnosed right here at the bedside. Based on the nature of the pulse, is it tricuspid regurgitation or aortic regurgitation? And why?
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This is a case of aortic regurgitation with Corrigan's pulse. The most striking feature of this pulse is outward. Quick and sharp. Relatively small breadth. There is only passive retraction back to baseline - no active inward movement. These are the features of an arterial pulse. 
Compare the arterial pulse in the video above with the venous pulse in the following video of Lancisi's sign (CV fusion). Here the movement is undulating, large breadth, and there is an active inward component. You can and will distinguish venous from arterial at the bedside.
