Also found in: Dictionary, Thesaurus, Medical, Acronyms, Wikipedia.


An abnormal sound accompanying the normal sounds of respiration within the air passages and heard on auscultation of the chest.



a pathological respiratory sound arising in the bronchi, trachea, or cavities formed in the lungs (abscesses, caverns).

Dry and moist rales are distinguished. Dry rales are caused by the whirling movement of air in places where a bronchial cavity narrows owing to spasm, swelling of the mucous membrane, or accumulation of viscid secretion. They have a whistling or buzzing quality and can be heard in auscultation, sometimes from a distance, for example, during an attack of bronchial asthma. Moist rales are caused by the passage of a stream of air through mucus and sound like bursting bubbles. They occur in bronchi, in the trachea, and in pathological cavities in a lung. Depending on the order of the bronchus or size of the cavity, rales may be smallbubbling, medium-bubbling, or large-bubbling. Consonanting (clear) and nonconsonanting (unclear) moist rales are also distinguished.

The presence, type, and sound of rales are important in the diagnosis of bronchitis, pneumonia, and other disorders.

References in periodicals archive ?
Theoretically, the reflected and transmitted pulses were proportional lo the specimen's strain rale and stress, respectively (15.
1: Percentage of birds in each of the 5 groups showing morbidity and rales at 2 days post the IBV challenge.
At the Pavilions, 13 different spaces will present works from the Rales collection.
A two year old goat was presented with history of mucopurulent nasal discharge, dyspnoea with audible rales and open mouth breathing.
The Rales Humanitarian of the Year Award recognizes the volunteer efforts and leadership roles of those who make a lasting impact by involving themselves with organizations that touch the lives of countless individuals.
Under current practice, infants with rales or an elevated respiratory rate probably would have a chest x-ray, but absolute band count is often overlooked as a risk factor, according to Dr.
A history of sputum production, the finding of rales or rhonchi on examination, and a past history of lower respiratory tract illness were associated with a diagnosis of bronchitis.
MARYSVILLE, Ohio -- Expecting their first child in 2010, Emily and Mitchell Rales decided they could no longer allow toxic synthetic chemicals on their massive estate's landscape.
The group includes Mark Ein, who is the founder and CEO of Venturehouse Group LLC, Mitchell Rales, co-founder of Danaher Corp (NYSE:DHR), as well as certain funds managed by T Rowe Price Associates.
Notable pathologic findings at admission included a black eschar on the boy's penis, bilateral prominent conjunctival ejection, and bilateral lower pulmonary rales.
That's because 11% of RALES participants were on a [beta]-blocker; it's unknown whether aldosterone would have shown benefit had all participants been on [beta]-blockade.
Health-related quality of life was assessed repeatedly over a 6-month period in a 60-subject RALES subsample with New York Heart Association class III-IV CHF.