Vesicular breath sounds can be heard over most areas of lungs. Sound intensity can be higher when the stethoscope is positioned nearer to the bases and the periphery of the lung.
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Vesicular breath sounds are soft and low pitched with a rustling quality during inspiration and are even softer during expiration. These are the most commonly auscultated breath sounds, normally heard over the most of the lung surface. They have an inspiration/expiratory ratio of 3 to 1 or I:E of 3:1.