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Bronchophony - Abnormal

Ask the patient to say '99' several times while auscultating the chest walls. Over consolidated areas '99' is understandable. This is because acoustic filtering is reduced in consolidated lung tissue, which allows better sound transmission. Compare this breath sound to the recording in the Bronchophony - Healthy lesson.

Patient Recording

patient heart or lung sound
Bronchophony - Abnormal

Patient Recording - Half Speed

patient heart or lung sound
Bronchophony - Abnormal

Position

Patient position
The patient's position should be sitting.

Listening Tips

Features:Ask patient to say "99" several times. Auscultate chest walls. Over consolidated areas "99" is understandable. For example, pneumonia in the upper lobes, both posterior and anterior. Compare to the Bronchophony - Healthy recording

Waveform (Phonocardiogram)

Authors and Sources

Authors and Reviewers


Sources

Return to Reference Guide Index Page
Bronchophony - Abnormal | Lessons with Audio and Video | #152


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