Auscultation Training by Repetition
Crackles - Late Inspiratory (Rales)
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.
If you wish to review a complete lesson concerning this sound, the following lesson modules(s) may be useful.
Each lesson includes text that covers an auscultatory sound, a waveform and an animation video.
Comments on this beta version will be welcomed. Send to: firstname.lastname@example.org