Auscultation of breath sounds in a patient complaining of shortness of breath reveals wheezing. Which one of the following conditions is responsible for this finding?

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Wheezing is a high-pitched whistling sound that occurs during breathing due to the narrowing or constriction of the bronchioles. This can be caused by conditions such as asthma, chronic obstructive pulmonary disease (COPD), or bronchitis. Significant hypoxia may cause decreased breath sounds or crackles, while swelling in the throat may cause stridor. Mucus in the lungs may cause crackles or rhonchi.

Auscultation of Breath Sounds in a Patient Complaining of Shortness