Rales are described as which term?

Rales are described as which term?

• A. Wheezing
• B. Crackling
• C. Stridor
• D. Rubbing

Answer: (B)

Rales are crackling sounds heard on auscultation, produced when small airways or alveoli pop open around fluid or collapsed areas. They can be fine crackles (high-pitched, brief) or coarse crackles (louder, longer), and they typically indicate fluid in the lungs, such as pulmonary edema, pneumonia, or atelectasis. The other terms describe different sounds: wheezing is a musical, high-pitched sound from narrowed airways; stridor is a harsh, wheezy sound from upper airway obstruction; rubbing refers to a pleural friction rub from inflamed pleura.

Rales are crackling sounds heard on auscultation, produced when small airways or alveoli pop open around fluid or collapsed areas. They can be fine crackles (high-pitched, brief) or coarse crackles (louder, longer), and they typically indicate fluid in the lungs, such as pulmonary edema, pneumonia, or atelectasis. The other terms describe different sounds: wheezing is a musical, high-pitched sound from narrowed airways; stridor is a harsh, wheezy sound from upper airway obstruction; rubbing refers to a pleural friction rub from inflamed pleura.