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Stridor

Virtual Auscultation

patient torso with stethoscope chestpiece

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

Lesson

Stridor is generated by air flowing through an upper airway that is narrowed or obstructed. It occurs in 10-20% of extubated patients. Stridor is a loud, high-pitched crowing breath sound heard during inspiration. Stridor may also occur throughout the respiratory cycle, particularly if the condition worsens. Often it can be heard without a stethoscope. Causes of stridor are obstructions, pertussis, croup, epiglottis, aspirations.

Waveform




Authors and Sources

Authors and Reviewers

Sources

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