rales
Basic Information
- Description
- An abnormal chest sound that is characterized by the clicking, rattling, or crackling noises heard on auscultation of (listening to) the lung with a stethoscope during inhalation. The sounds are caused by the 'popping open' of small airways and alveoli collapsed by fluid, exudate, or lack of aeration during expiration. The word 'rales' derives from the French word rale meaning 'rattle'. Rales can be heard in patients with pneumonia, atelectasis, pulmonary fibrosis, acute bronchitis, or bronchiectasis. Pulmonary edema secondary to left-sided congestive heart failure can also cause rales.
- Identifier
- SYMP_0000118
- Notation
- SYMP:0000118
- Category
- symptoms
- Synonyms
-
- crackles
- crepitations
Related Diseases
Medical Disclaimer: The information provided on this website is for general informational and educational purposes only.
It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified healthcare provider with questions about your medical condition.