Fourth Heart Sound (S4) Plus First Heart Sound Auscultation Practice

Fourth Heart Sound (S4) Plus First Heart Sound

Research studies have demonstrated that listening to a heart sound for 2-3 minutes can help students master auscultation. For textual descriptions, waveforms and heart animations, please use our courses on this website.

auscultation sound from lesson
waveform


Listening Tips

S1:
Systole:
S2:
Diastole: S4 present - a low-pitched sound


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Sv: 1 ; 7/30/2026 10:41:30 PM




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