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Bronchial Breathing Sound - Normal
Manage episode 313651248 series 3279691
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Breath sounds heard close to large air passages have a louder and longer expiratory phase and their energy components extend over a broad frequency range (<200 – 4000 Hz). In health, such sounds are heard only over the large air passages e.g. the trachea. In the presence of consolidation or cavitation there is less filtration and attenuation of the sounds produced in the large airways, so that the sounds heard over the chest wall are similar to those heard over large air passages such as the trachea.
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