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20 Cards in this Set
- Front
- Back
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What are the 3 points on the Jugular venous pulsation curve to know?
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-A
-C -V |
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What is the a wave?
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Atrial contraction
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What is the c wave?
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Right v contraction - shows up when the tricupsid valve bulges into the atrium.
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What is the v wave?
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Increasing atrial pressure due to filling against the closed tricuspid valve.
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What does S1 heart sound coincide with on the ECG? What is this?
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The R wave - this is closing of the mitral/tricuspid AV valves at the START of isovolumetric contraction of the ventricles.
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What is S2 and where does it coincide with on the ECG?
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S2 = shutting of the aortic and pulmonic valves; seen on ECG as the end of the T wave, After all ejection
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When is S3 heard?
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At the end of rapid ventriculr filling during phase 4 of the cardiac cycle
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What disease is S3 associated with?
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Congestive heart failure
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When is S4 heard? What is is caused by?
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Just before the QRS complex - caused by a stiff ventricle or high atrial pressure
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What is s4 also called and what is it associated with?
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-Atrial KICK
-ASsociated with a hypertrophic ventricle |
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What heartsound normally splits?
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S2
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What is S2 again?
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Shutting of the aortic/pulm valves
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What physiologically causes S2 to split?
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Inspiration
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What will cause WIDE splitting?
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Pulmonic stenosis
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What will cause Fixed splitting?
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Atrial septal defects!
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What is paradoxical splitting?
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When the pulmonic valve shuts BEFORE the aortic during the split
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Which valve shuts first in S2 split normally?
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Aortic
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What can cause paradoxical splitting?
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Aortic stenosis
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And what can cause S3?
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CHF
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And what can cause S4?
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Ventricular hypertrophy (requiring an aortic kick)
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