While assessing breath sounds, a nurse hears crackles. What causes these abnormal sounds?

Name: While assessing breath sounds, a nurse hears crackles. What causes these abnormal sounds?
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Question

Quizplus · Accepted Answer

Crackles, also known as rales, are caused by the presence of moisture or fluid in the small air passages of the lungs. This can be a sign of conditions such as pneumonia, congestive heart failure, or pulmonary fibrosis. The sound is often described as a popping or bubbling noise.

While Assessing Breath Sounds, a Nurse Hears Crackles