Adventitious Sound WisdomCard

Our Guides and Physician Review team have organized the Top 10 Health Resources on Adventitious Sound and compiled helpful research notes below.


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Research Notes on Adventitious Sound


The term "adventitious sound" refers to chest sounds a doctor can hear in addition to normal breath sounds. This often indicates a health problem. 1 Rales (crackles), rhonchi (wheezes) and stridor are terms used to classify various adventitious sounds.1 The detection of these sounds is an important aspect of a respiratory examination as it may lead to diagnosis of cardiac problems or respiratory conditions.1

Fast Facts:

  • Crackles are high-pitched popping sounds that can signify an accumulation of fluid in the airways.2
  • Wheezes can indicate a restrictive or collapsed airway due to pulmonary disease.2
  • Stridor are intense wheezes that can indicate an obstruction in the upper airway.2

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Research Notes References

  1. 1.0 1.1 1.2 RnCeus.com: Adventitious Breath Sounds
  2. 2.0 2.1 2.2 Colorado State University: Abnormal (Adventitious) Breath Sounds

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