Abnormal Heart Sounds

37 terms by joharr

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S1

results from closure of the mitral and tricuspid valves

S1

Signals beginning of systole, when the ventricles contract

S2

results from closure of aortic and pulmonic valves.

S2

Signals end of systole and beginning of diastole, when the ventricles relax and fill with blood from the atria.

S3 and S4

shorter sounds that may become muffled in with the normal heart sounds

S1

will sound louder at apex—over mitral and tricuspid valves

S2

will sound louder at base—over aortic/pulmonic area

S1

louder at apex

S2

louder at base

S3 and S4

Heard with bell over mitral area with patient in left lateral recumbent position (laying on left side)

S3

Indicates ventricular failure--considered abnormal in adults over 30

S1....s2, s3....s1....s2, s3

Sloshing in, sloshing in

S2...S4, S1....S2...S4, S1

a stiff wall, a stiff wall

S3

Occurs in early diastole, just after S2

S4

Occurs in late diastole, just before S1

S4

Seen in long standing HTN and MI (and end stage heart disease)

S4

always considered abnormal

Gallop

both S3 and S4 sounds

S2 split

fairly common

S3

heard only in left lateral position, with BELL

S2 split

heard only when sitting up, with DIAPHRAGM

S2 split

diaphragm

S1 split

heard when mitral valve closes slightly before tricuspid valve

S2 split

heard when aortic valve closes slightly before pulmonic valve

S1 and S2

heard with diaphragm

S1

Normal adult rate 60-100 bpm (correlates with carotid pulse)

S2 split

heard during inspiration, disappears during exhalation

S2 split

loudest at pulmonic area

S2

loudest at aortic and pulmonic areas

S1

loudest at mitral and tricuspid areas

Erb's point

S1 and S2 are equal in loudness

S3

Occurs with blood splashing into an overly filled ventricle, i.e. heart failure

S4

Occurs when blood enters ventricle and hits a stiff ventricular wall (with pts who have had heart attacks and have dead scar tissue in the heart)

differences between S2 split and S3

bell vs diaphragm; lying (left side) vs sitting; S2 split comes and goes

S3 and S4

heard in left lateral position over mitral area

S3

loudest at mitral area

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