Hyperkinetic pulse with normal pulse volume – MCQ – Answer

Hyperkinetic pulse with normal pulse volume – MCQ – Answer

Hyperkinetic pulse usually has a high pulse volume, but in which condition is it associated with a normal pulse volume? – Correct answer: d) Hypertrophic obstructive cardiomyopathy

A hyperkinetic pulse in HOCM is due to rapid initial rate of development of left ventricular pressure. Volume is not high because left ventricular outflow obstruction sets in soon.

A hyperkinetic pulse with normal pulse volume may also be noted in mitral regurgitation. Here again the dilated left ventricle empties rapidly, but volume is not high because part of the blood goes back into the left atrium and not the aorta.

In all other conditions, the stroke volume is increased so that the hyperkinetic pulse has a high pulse volume as well.

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