Polyphonic wheezes are loud, musical and continuous. Where the wheeze occurs in the respiratory cycle depends on the obstructions location, if wheezing occurs in the expiratory phase of respiration it is usually connected to broncholiar disease. The reason for polyphonic wheezes appearance is the general obstruction of airways. These breath sounds occur in expiration and inspiration and are heard over anterior, posterior and lateral chest walls. These sounds are associated with COPD and more severe asthma.

Maneuver: Seated
Chestpiece Position: Chest wall
Chestpiece: Diaphragm