Card Set Information
normal and adventitious breath sounds Unit 3
Intensity: Loud, predominantly on expiration
A sound like air blown through a hollow tube, heard over suprasternal area and lower trachea mainstem bronchus.
A blowing sound heard over airways on either side of sternum, at angle of Louis, and between scapulae.
High on inspiration, low on expiration
Intensity: lound on inspiration, soft to absent on expiration
Quiet, rustling sounds, heard over periphery
Where to Auscultate Crackles
Over lung field and airways: heard commonly in bases of lower lung lobes
Cause of Crackles (Rales)
Air passing through fluid or mucus in any air passage.
Light crackling, bubbling, high-pitched
Crackles or Rales
Where to Auscultate Gurgles or Rhonchi
Over larger airways
Coarse rattling, gurgling, harsh, moaning or snoring quality. May be cleared by cough
Gurgles or Thonchi
Adventitious sound caused by Airways narrowed by bronchospasm or secretions.
Gurgles or Rhonchi