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Stridor

Stridor is caused by upper airway narrowing or obstruction. It is often heard without a stethoscope. It occurs in 10-20% of extubated patients. Stridor is a loud, high-pitched crowing breath sound heard during inspiration but may also occur throughout the respiratory cycle most notably as a patient worsens. In children, stridor may become louder in the supine position. Causes of stridor are pertussis, croup, epiglottis, aspirations.

Patient Recording

patient heart or lung sound
Stridor

Patient Recording - Half Speed

patient heart or lung sound
Stridor

Position

Patient position
The patient's position should be sitting.

Listening Tips

Features:A loud, high-pitched wheezing sound heard during inspiration but may also occur throughout the respiratory cycle. Often heard without a stethoscope

Waveform (Phonocardiogram)

Authors and Sources

Authors and Reviewers


Sources

Return to Reference Guide Index Page
Stridor | Lessons with Audio and Video | #140


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