Dry wheezing phases

Dry rales can be fixed at the stage of both inhalation and exhalation. Rattles of this type differ in such characteristics as loudness, height and timbre.

Considering the pitch and timbre of the sound, dry rales can be divided into high, treble (ronchi sibilantes) (in other words, whistling), and low, bass (ronchi sonori), which can be called humming or humming rales.

When the lumen of the small bronchi narrows, this leads to the appearance of high treble rattles. If we are talking about narrowing of the lumen of the bronchi of medium and large caliber, or when viscous sputum is collected in the lumen of the bronchi, then you can record low, bass rattles.

The extent to which dry rales are common and what their volume is in direct proportion to the zone of lesion of the bronchial tree, the depth of the affected bronchi, as well as the strength of the respiratory phase. If the walls of the bronchi of medium and large caliber are slightly affected, then in this case it is possible to fix a certain amount of quiet rales.

Frequently occurring inflammation of the bronchi or bronchospasm, which manifests itself during an attack of bronchial asthma, is characterized by the presence of not only high treble rattles, but also low bass rattles, which have different timbre and loudness.

The wheezing of such a plan at the exhalation stage can also be fixed at a distance. When dry rales appear due to the accumulation of viscous sputum in the lumen of the bronchi, then at the stage of deep breathing or immediately after cough, when the phlegm slowly moves in the cavity of the bronchi, the rales are either louder or quieter. In addition, they can disappear altogether for some period of time.

And this is even more interesting:

  1. Wet rales
  2. Dry rales
  3. Nature of wet wheezing
  4. Crepitus
  5. Differences of pleural friction noise