Rhonchi

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Rhonchi
Classification and external resources
Specialty Lua error in Module:Wikidata at line 446: attempt to index field 'wikibase' (a nil value).
ICD-10 R09.8
ICD-9-CM 786.7
Patient UK Rhonchi
[[[d:Lua error in Module:Wikidata at line 863: attempt to index field 'wikibase' (a nil value).|edit on Wikidata]]]

Rhonchi are coarse rattling respiratory sounds, usually caused by secretions in bronchial airways. "Rhonchi" is the plural form of the singular word "rhonchus". Since the mid-1990s, it has no longer been considered appropriate terminology in auscultation of the thorax, as much confusion has been reported in the published literature which confuses this with crepitations and wheezes, so the exact nature of this term is unclear (see Fleischner Society for standardized terminology).[citation needed]

Similarly, rales are no longer used in much of Europe, North America, and Australia with regard to description of auscultatory findings. More appropriate terms for auscultation of the thorax are respiratory sounds and adventitious sounds (wheezes, crackles, pleural rubs). These have variably been associated with low-pitched, continuous sounds that are similar to wheezes or crackles. Other terminology for sounds that may be auscultated in the thorax include pulmonary murmurs, egophony, whispering pectoriloquy, and vocal fremitus. Also, percussion is often used to assess diseases of the chest.

History

In 1957, Robertson and Coope proposed the two main categories of adventitious (added) lung sounds. Those categories were "Continuous" and "Interrupted" (or non-continuous).[1] In 1976 the International Lung Sound Association simplified the sub-categories as follows:

Continuous
Wheezes (>400 Hz)
Rhonchi (<200 Hz)
Discontinuous
Fine Crackles
Coarse Crackles[2][3]

Several sources will also refer to "Medium" crackles, as a crackling sound that seems to fall between the course and fine crackles. Crackles are defined as discreet sounds that last less than 20 ms, while the continuous sounds (Rhonchi and wheezes) last approximately 250 ms.

See also

References

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External links


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