Basics of Lung Sounds

Crackles - Coarse (Rales)

Coarse crackles are discontinuous, brief, popping lung sounds. Compared to fine crackles they are louder, lower in pitch and last longer. They have also been described as a bubbling sound. You can simulate this sound by rolling strands of hair between your fingers near your ear.
Crackles - Coarse (Rales)
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Chestpiece Position:Chest wall