Repetition Training: Crackles - Late Inspiratory (Rales)

Crackles - Late Inspiratory (Rales)

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:
Features:Crackles begin in late inspiration and increase. High-pitched, variable loudness. Best heard over posterior bases of the lungs. Do not usually clear with coughing


Select Another Sound

? onAr:0 | v:0 | onPs:0
pu? False | pv:1
pLen: 0 | nLen 1 | cCode:
| debug: | uGeoCtr: 0 | localNlen: 1;





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