HESI (Health and Environmental Sciences Institute) Health Assessment Practice Test

Question: 1 / 400

Which abnormal breath sound is caused by air passing through narrowed bronchioles?

Rales

Wheezes

Wheezes are abnormal breath sounds that occur when air flows through narrowed or constricted airways, such as bronchioles. This narrowing can result from conditions like asthma, bronchitis, or other forms of airway obstruction, leading to a high-pitched, musical sound that is often heard during expiration. The sound is produced by the turbulent airflow in the narrowed passages, causing vibrations in the airway walls.

In contrast, rales, crackles, and stridor represent different types of abnormal breath sounds. Rales, often referred to as crackles when they are fine, are typically associated with fluid or mucus in the airways. Stridor is a harsh, high-pitched sound usually indicative of an obstruction in the upper airway, often heard during inhalation. Thus, among the given options, wheezes are distinctly linked to the phenomenon of narrowed bronchioles, making them the correct choice.

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Crackles

Stridor

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