Crackles - Early Inspiratory (Rales) | Auscultation #147 | Lesson with Audio

patient thorax when auscultating by stethoscope

patient position during auscultation
The patient was sitting during auscultation.

Description

Early inspiratory crackles (rales), as suggested by the title, begin and end during the early part of inspiration. The pitch is lower than late inspiratory crackles. A patient's cough may decrease or clear these lung sounds. Early inspiratory crackles suggest decreased FEV1 capacity and are characteristic of COPD.

Waveform

Authors and Sources

Authors and Reviewers

Sources


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