Auscultation Repetition Training: 629
Crackles - high-pitched (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.
Listening Tips
S1:Systole:
S2:
Diastole:
Features:Brief, popping sounds that are high-pitched. Fine crackles are similar to wood burning in a fireplace. Crackles are more commonly heard during inspiration
