Wheezes are continuous, high-pitched, musical, predominantly expiratory sound caused by forced airflow through collapsed airways. Due to the collapsed or abnormally narrow airway, the velocity of air in the lungs is elevated. Wheezes are continuous high pitched hissing sounds. They are heard more frequently on expiration than on inspiration. If the wheezing is in the inspiratory phase, it is an indicator of stiff stenosis whose causes range from tumours to scarring. One of the main causes of wheezing is asthma other causes could be pulmonary edema, interstitial lung disease and chronic bronchitis.

Maneuver: Seated
Chestpiece Position: Chest wall
Chestpiece: Diaphragm