Bronchophony - Abnormal Reference Guide.
Bronchophony - AbnormalAsk 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 - Half Speed Playback
The patient's position should be sitting.
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