Heart Sound Abnormalities Flashcards Preview

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Flashcards in Heart Sound Abnormalities Deck (5)
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1

What would cause a heart sound to split?

I the valves of the left and right sections of the heart don't close at the same time.

2

Is it normal to hear extra sounds in hearts?

Yes, but it would be a third sound in early diastole and a fourth sound which is atrial systole.

3

What causes heart murmurs?

Turbulent blood flow usually due to stenosis (narrowed valve) or a valve not closing properly.

4

When do murmurs occur?

When the blood flow is highest. This means you can predict where in the cardiac cycle they will occur.

5

What is cardiac output?

Stroke volume x heart rate. (The heart ejects a stroke volume with each beat.)