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.

After reviewing the sound, use the waveform and anatomy tabs for more information about this sound.

Bronchophony - Abnormal
Position: Chest wall
Maneuver: Sitting
Chestpiece: Diaphragm