Adventitious Lung Sounds
This website offers free lessons, reference guides and quizzes for adventitious lung sounds. On this page we provide a definition and then we examples of several types of adventitious lung sounds using audio recordings and text. Links to the free training courses are noted as well.
What Are Adventitious Lung Sounds?
Adventitious lung sounds are abnormal sounds that are heard when auscultating a patient's lungs and airways. These sounds include abnormal sounds such as fine and coarse crackles (crackles are also called rales), wheezes (sometimes called rhonchi), pleural rubs and stridor. Adventitious lung sounds are important clues used for diagnosing numerous cardiac and pulmonary conditions. These sounds and corresponding conditions are described in our lung sounds courses.