Heart sounds 2
Terms
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- what is the only none pathological split heart sound?
- S2 on inspiration
- what makes the S1 sound?
- mitral and tricuspid closing
- what makes the S2 sound?
- aortic and pulmonic closing
- what causes a wide splitting of S2?
- pulmonic stenosis, right bundle branch block, mitral regurgitation
- what causes a fixed splitting of S2?
- atrial septal defect, right ventricular failure
- what is a paradoxical or reversed splitting of S2 and what causes it?
- its a splitting of S2 that only occurs on exspiration and its caused by left bundle branch block
- S3 sound
- children to 35-40, tri 3 pregnancy, decubitus position at apex w/ bell
- pathologic S3? aka?
-
aka = "ventricular gallop"
>40yrs. decreased myocardial contractility, myocardial failure, volume overloading from mitral/tri regurgitation - S4 normal? aka?
- aka = "atrial gallop", occurs just before S1, bell, athletes and old people
- S4 pathological?
- stiff ventricular muscle
- S4 pathological (left sided)?
- hypertensive heart dx, coronary artery dx, aortic stenosis, heard in apex
- S4 pathological (right sided)?
- pulmonary hypertension, pulmonic stenosis
- summation gallop?
- quadruple rhythm of four heart sounds