5. Wheeze (Sibilant)•Musical Crackles
or squeaking Bubbling, crackling, popping
Low- to high-pitched, discontinuous
•High-pitched, continuous sounds
•Auscultated during inspiration and sounds
Auscultated during inspiration
expiration
Occurs in small air passages, alveoli,
•Occurs in small air passages
bronchioles, bronchi, and trachea
Wheeze Rhonchi- rumbling sound, indicates
(Sonorous)•Sonorous or fluid/mucus in upper/ large airways
coarse Friction Rub
• Low-pitched, continuous sounds Rubbing or grating
• Auscultated during inspiration and Loudest over lower lateral anterior
expiration surface
• Coughing may clear the sound Auscultated during inspiration and
expiration