Lung sounds Flashcards
increase intensity means
more ventilation
less intensity means
less ventilation on that area of the lung
bronchial breathing is abnormal where
anywhere other than the trachea and larynx (above clavicle, interscapular, peripheral areas are abnormal
soft, high pitch and very brief
fine crackles
what is cause of fine crackles
due to intersititial lung disease or fluid build up
what are diseases with fine crackles
CHF and pulmonary fibrosis
what are louder, lower pitch, longer sounds
coarse crackles
what is cause of coarse crackles
large airway obstruction
what are diseases with coarse crackles
pneumonia, COPD, pulmonary edema, aspiration
are crackles discontinuous
yes
what are popping sounds in the airways
crackles
when are crackles most heard
inspiration
what does it mean if crackles are heard during early inspiration
chronic bronchitis or early emphysema in large airways
what if crackles are heard later inspiration phase where may they originate
smaller peripheral airways due to restrictive lung disease (interstitial fibrosis, asbestosis, pneumonia, scleroderma, pulmonary edema)
musical, higher pitch, last longer
wheezles
what is wheezles suggestive of
asthma
lower pitch, snoring; fluid secretions in large airways
rhonchi
what is rhonchi suggestive of
secretions in large airways
are wheezles discontinuous or continous
continous musical tones heard at either inspiration or expiration
what is wheezles a result of
collapsed airway lumen gradually opens during inspiration or gradually closes during expiration or foreign body obstruction (in inspiration) and extensive secretions (in expiration)
when are rhonchi more pronounced
expiration
asthma causes:
narrowing of airways b/c of bronchoconstriciton and secretions
pleural friction rub
-caused by rubbing of inflamed pleural surfaces against lung tissue
-heard during both inspiration and expiration
crowing sound, high pitch, whistling during inspiration
stridor
