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Crackles - Fine (Rales)

Virtual Auscultation

patient torso with stethoscope chestpiece

patient position during auscultation
The patient's position is seated.

Lesson

Fine crackles are characteristically heard as sounding like the popping of a wood fire or velcro being pulled apart. Early inspiratory and expiratory crackles frequently accompany chronic bronchitis, while late inspiratory crackles can indicate more serious medical conditions such as pneumonia, congestive heart failure (CHF), or atelectasis.

Waveform



Authors and Sources

Authors and Reviewers

Sources

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