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Breath Sounds
Characteristics of breath sounds
13
Nursing
02/14/2011

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Term

Normal breath sound

 

Bronchial (Tracheal)

Definition

High Pitch

Loud

During inspiration and expiration

Harsh, hollow tubular

around trachea and larynx

Term

Normal Breath Sound

 

Bronchovesicular

Definition

moderate pitch

moderate amplitude

during inspiration and expiration

mixed quality

heard over major bronchi where fewer alveoli are located

Term

Normal Breath Sound

 

Vesicular

 

Definition

Low pitch

soft amplitude

heard during inspiration and expiration

rusting, like the sound of the wind in the trees

heard over the peripheral lung fields where air flows through smaller bronchioles and alveoli

Term

Crackles- fine

(Rales)

Definition
discontinuous, high pitched, short crackling, popping sounds heard during inspiration that are not cleared by coughing
Term

Crackles - course

(Rales)

Definition
Loud, low pitched, bubbling and gurgling sounds that start in early inspiration and may be present in expiration; may decrease somewhat by suctioning or coughing
Term

Atelectatic crackles

(Atelectactic rales)

Definition
fine crackles that do not last and are not pathologic, disappear after first few breaths. Will go away, sacs are collapsed
Term
Pleural friction rub
Definition

Superficial sound that is course and low pitched

sounds like leather being rubbed together, caused when pleurae become inflammed and lose their normal lubricating fluid

Term
Wheeze
Definition
High pitched, musical squeaking sounds that sound polymonic
Term
low pitched wheeze
Definition
low pitched monophonic single note, musical snoring, moanind sounds: they are heard throughout the cycle
Term
Stridor
Definition

High pitched, monophonic, inspiratory, crowing sound, louder in neck than over chest wall

originates in larynx or trachea, upper airway obstruction from swollen, inflamed tissues or lodged foreign body

Term
Bronchophony
Definition

"99"

normal voice transmission is soft, muffled, and indistinct; can hear sound through stethoscope, but can not distinguish what exactly is being said

Abnormal finding if you can hear "99" clearly

Term
Egophony
Definition

Goat voice

ee-ee-ee-ee

sounds like eeeee if normal

if sounds like long aaaaa, abnormal

 

Term
Whispered Pectoriloquy
Definition

whisper one, two, three as you ascultate

normal if faint and almost non audible

if you can hear the whisper, abnormal

abnormal finding indicates solidation