Crackles - Coarse (Rales) - Reference

heart lung sounds waveform
maneuver
Seated
torso & chestpiece
Diaphragm

Listening Tips
spacer
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.






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This website is intended for use by medical professionals for educational purposes only. For medical care, contact a healthcare provider. Copyright 2017 © Medical Training and Simulation LLC. All Rights Reserved.