Describe pulsus parvus et tardus, Biology

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Describe pulsus parvus et tardus?

Pulsus parvus et tardus means a slow rising small volume pulse typically in severe aortic stenosis with preserved LV function.

1564_arterial-pulse-waveform-s.jpg

Figure: Pulsus parvus et tardus

A collapsing pulse: Typically found in aortic regurgitation, PDA, any undue aortic run off like arteriovenous fistula and is characterized by a sharp rise, sharp fall and no sustenance. It is better elicitated by grasping the wrist with palm over radial and ulnar arteries and lifting the wrist above the head of the patient when the arterial thrust is maximally felt.


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