What are continuous abnormal rumbling sounds heard on auscultation?

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Rhonchi are continuous low-pitched, rattling lung sounds that often resemble snoring. They occur when there is a partial obstruction of the larger airways in the lungs. Rales refers to discontinuous, crackling sounds heard on auscultation, typically indicating fluid in the smaller airways or alveoli. Wheezing refers to high-pitched, whistling sounds that occur during expiration, often indicating airway constriction or obstruction. Stridor is a high-pitched, harsh, and continuous sound heard during inspiration or expiration, indicating obstruction of the upper airway.

What Are Continuous Abnormal Rumbling Sounds Heard on Auscultation