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Breath Sounds

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created 3 years ago by AImhoff
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Grade levels:
College: First year, College: Second year

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1

Normal breath sounds (4)

Tracheal, Bronchial, Bronchovesicular,Vesicular

2

Tracheal

Inspiratory = expiratory phases, pause between
Sounds: loud, harsh, and tubular
Heard over the trachea

3

Bronchial

Inspiratory < expiratory, short pause between
Sounds: Tubular, hollow, high pitched
Heard: Anterior manubrium,
Posterior 2nd and 3rd intercostals

4

Bronchovesicular

Inspiratory = expiratory, no pause
Sounds: windy/ breezy
Heard: Posterior between scapulae, Anterior sternum

5

Vesicular

Inspiratory > expiratory, no pause
Sounds: wind rustling though trees
Heard: over most lung fields, especially periphery

6

Adventitious lung sounds (7)

Crackles, Fine Crackles, Course Crackles, Stridor, Pleural Friction Rub, Wheezes, Rhonchi

7

Adventitious lung sounds, mainly inspiration (5)

Crackles, Fine Crackles, Course Crackles, Stridor, Pleural Friction Rub

8

Adventitious lung sounds, mainly expiration (2)

Wheezes, Rhonchi

9

Crackles

Intermittent, non-musical

10

Fine Crackles

Soft, high pitched, brief (like bubble wrap)
Caused by alveoli popping open

11

Course Crackles

Loud, low pitched (like opening Velcro)
COPD, Chronic bronchitis, pulmonary edema

12

Stridor

Barking, high pitched, harsh sound on inspiration
Caused by airway obstruction, aspiration, inflammation

13

Pleural friction rub

Low pitched creaking, (like rubbing leather)
Heard more on inspiration, pt hurts to breathe
Have patient hold breath, if still heard = pericardial rub

14

Wheezes

High pitched, musical, usually heard on expiration
Caused by narrowing of airways/ swelling/ inflammation

15

Rhonchi

Low pitched rumbling, snoring sound, moaning quality
Caused by secretions in the large airways


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