Question

Find audio clips of adventitious lungs sounds. Discuss what makes these sounds, how would we identify them, and what the implications would be if they go unrecognized. Summarize your findings

Answer 1

adventitious lung sounds are abnormal breath sounds that can be audible during auscultation over lungs and airways.

these sounds include crackles, wheezes, friction rubs and stridor.

crackles

in genera crackles

soft, high pitched discontinuous popping sounds mainly during inspiration, may or may not be cleared by coughing

etiology: secondary to fluid in the airways or alveoli or to the delayed opening of collapsed alveoli.or associated with heart failure and pulmonary fibrosis

coarse crackles

discontinuous popping sounds in early inspiration; harsh, moist sound

aetiology associated with obstructive pulmonary disease

fine crackles

discontinuous popping sounds in late inspiration sound like hair rubbing

etiology: interstitial pneumonia, fibrosis and bronchitis

WHEESES

in general wheeses

usually heard at expiration , changes depending upon the cause.

etiology: associated with bronchial wall oscillation and changes in airway diameter.bronchitis or bronchiectasis

sonorous wheezes(rhonchi)

deep, low pitched rumbling sounds on expiration

etiology: secretions or a tumour

sibilant wheezes

countinuous, musical, high-pitched whistle like sounds heard during inspiration and expiration (may clear with coughing)

etiology : bronchospasm, asthma and building up of secretions.

FRICTION RUBS

harsh crackling sounds(rubbing thumb and finger together near the ear.) heard during inspiration alone or both inspiration and expiration.coughing will not clear sound.best heard over the lower lateral anterior surface of the thorax.

etiology: secondary to inflammation and loss of lubricating pleural fluid

STRIDOR

A loud, high-pitched sound heard during inspiration but may also occur throughout the respiratory cycle.

etilogy: associated with allergy or foreign body.

Adventitious breath sounds are important clues used for diagnosing numerous cardiac and pulmonary conditions.if unidentified, the conditions may worsen.