![]() Listen to rales here on the Medzcool YouTube channel. Rales are usually broken up into more specific types, based on the way they sound. When these tiny sacs are damaged or weighed down with fluid or mucus, they can make a crackling sound as they attempt to fill with air. These are tiny sacs of air and inflate and deflate with each breath. This usually occurs in the smaller parts of the lungs, like the alveoli. These sounds are formed when air moves into closed spaces. The terms rales or crackles have been used interchangeably and are usually a matter of preference, not a difference in the condition. Rales are a higher-pitched sound sometimes called crackles or bibasilar crackles. During expiration, the sound intensity can diminish somewhat. These sounds are low to moderate sound intensity (volume) with a low-pitch (200-600 Hz) and with a rustling quality. Less musical sounding than a wheeze, stridor is a high-pitched, turbulent sound that can happen when a child inhales or exhales. Listen to rhonchi here on the Medzcool YouTube channel. Vesicular lung sounds are the most common auscultated sounds, usually heard over most of the chest wall. The sound you hear is the the sound the air makes as it moves around the blockage. These sounds are produced when there is something blocking the airway, like fluid. Rhonchi can either come and go on and inhale or exhale or be heard continuously. It can be heard on an inhale or exhale, and it’s often compared to the sound of snoring. Rhonchi, or large airway sounds, are continuous gurgling or bubbling sounds typically heard during both inhalation and exhalation. This low-pitched sound that usually starts in the larger airways in the lungs. The difference between the two is in the pitch and the exact cause of the sound. ICD-10-CM R09.89 is grouped within Diagnostic Related Group(s) (MS-DRG v41.Rales and rhonchi can both be coarse, even crackling sounds. Other symptoms and signs involving the circulatory and respiratory system
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