What lung sound is described as high-pitched, whistling, or musical during expiration?

Wheezing is characterized by a high-pitched, whistling, or musical sound, particularly prominent during expiration. This sound occurs when air flows through narrowed or obstructed airways, which can happen in conditions such as asthma, bronchitis, or any other situation that leads to bronchial constriction or inflammation.

The whistling nature of wheezing is primarily due to the turbulent airflow through the constricted passages, producing the distinct sound that healthcare providers listen for during auscultation. Recognizing wheezing is important for diagnosing and monitoring respiratory conditions where airway obstruction is involved. Understanding this lung sound can significantly impact patient management and treatment strategies in cardiopulmonary care.