Rale

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râle

[ral]
(medicine)
An abnormal sound accompanying the normal sounds of respiration within the air passages and heard on auscultation of the chest.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Rale

 

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.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
According to the Japan Meteorological Agency, intensity-3 tremors are classified as ''weak tremors,'' just strong enough to rattle paper windows and sway suspended lighting fixtures.
Where to rattle: There are as many opinions about this as there are practitioners of this relatively new hunting technique.
Provoking a snake to rattle provides useful information about how big a threat the snake is, Swaisgood points out.
If you just want to rattle in more bucks, make more noise, particularly during the rut.
While studies in Texas have shown that peak rut is the best time to rattle in just any buck, they've also shown that post-rut rattling was the best time to lure in mature bucks.
Midmorning through noon is my favorite time to rattle, followed by mid to late afternoon.
Stan Potts, of central Illinois, loves to rattle and has called in some monster bucks through the years.
Native Americans throughout North America used sheds and antlers from bucks they killed to rattle in deer.
That's why it is best to have a buddy situated 200 feet behind you to rattle. Or rattle from a treestand where you can see bucks coming.