Crackles - Coarse (Rales) | Auscultation Cheat Sheet with Sounds & Video | #73

Coarse crackles are a loud and distinctive lung sound, often described as popping or bubbling. These intermittent sounds have a lower pitch than their fine counterparts and tend to linger longer in duration - try simulating the noise by rolling pieces of hair between your fingers near your ear!

Patient Sounds

patient heart or lung sound
Crackles - Coarse (Rales)

Half Speed Patient Sounds

patient heart or lung sound
Crackles - Coarse (Rales)

Technique

Patient position
The patient's position should be seated.

Auscultation Tips

Features:Course crackles are discontinuous, brief, popping sounds. Similar to the sound of a hook and loop fastener being pulled apart. They have also been described as a bubbling sound. More common during inspiration

Sound Wave

Authors and Sources

Authors and Reviewers


Sources

Return to Reference Guide Index Page
Crackles - Coarse (Rales) | Auscultation Cheat Sheet with Sounds & Video | #73

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