Crackles - Late Inspiratory (Rales)


Listening Tips
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.

Relevant Courses

If you wish to review a complete lesson concerning Crackles - Late Inspiratory (Rales), we provide complete lessons. The following lesson modules(s) may be useful. Each lesson includes text that explains the auscultatory sound and its clinical significance. The lesson also includes an audio track for playback. A waveform provides a great way to visualize the sounds. Finally, we also include an animation video. For heart sounds, the video illustrates heart muscle and valve movements along with blood flow. For lung sounds, the primary source of the sounds can be seen. Each module also includes a quiz.

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