Intermediate Lung Sounds Bronchophony - Healthy Ask the patient to say "99" several times while auscultating the chest walls. Over healthy lung areas, "99" is not understandable. This is because sound is impeded in normal lungs.Compare this voiced breath sound to the recording in the "Bronchophony - Abnormal" lesson. play pause Position: Chest wall Chestpiece: Diaphragm Maneuver: Sitting Waveform Skin and Ribs Blended View Lungs Move slider to reveal lungs Table of Contents 1Vesicular - Diminished 2Bronchophony - Healthy 3Bronchophony - Abnormal 4Egophony - e 5Egophony - a 6Whispered Pectoriloquy - Healthy 7Whispered Pectoriloquy - Abnormal 8Wheeze - Expiratory 9Wheeze - Monophonic 10Wheeze - Polyphonic 11Crackles - Early Inspiratory (Rales) 12Crackles - Late Inspiratory (Rales) 13Stridor Practice Drill