pulmonary disorders
Wheezing
Etiology of Wheezing
Small airway narrowing may be caused by bronchoconstriction, mucosal edema, or external compression, or by partial obstruction by a tumor, foreign body, or thick secretions. Overall, the most common causes are Asthma None Chronic Obstructive Pulmonary Disease (COPD) (chronic obstructive pulmonary disease) But wheezing may occur in other disorders affecting the small airways, including Heart Failure (HF) (cardiac asthma), allergic reactions, including 