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HxPx - Heart Sounds & Heart Murmurs Exam Study Guide
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HxPx - Heart Sounds & HeartMurmurs Exam Study Guide
S1 heart sound - Answer -closing of AV valves (tricuspid and mitral)
-heard during vent. systole/vent. contraction/QRS complex
S2 heart sound - Answer -closing of semi-lunar valves (aortic and pulmonic)
-heard during vent. diastole/vent. relaxation/after T wave
S3 heart sound - Answer -heard during diastole (during rapid ventricular filling)
-due to fluid volume overload (CHF), and/or thinning of the ventricular wall
-also can be due to weakening of the AV valve which "plops" blood into the ventricle
-known as the ventricular gallop
-best heard with bell
S4 heart sound - Answer -sound is produce during atrial systole, as the atrial walls
smack to blood while trying to force it into a high pressured ventricle
-heard due to hypertrophy and decrease ventricular compliance
-known as an atrial gallop
-best heard with bell
Five common murmurs heard during systole? - Answer 1. aortic stenosis
2. pulmonic stenosis
3. mitral regurgitation
4. MVP
5. tricuspid regurgitation
Four common murmurs heard during diastole? - Answer 1. aortic regurgitation
2. pulmonic regurgitation
3. mitral stenosis
4. tricuspid stenosis
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