Breath Sounds Don Hudson, D.O., FACEP/ACOEP. Why is Listening to Breath Sounds Important What do you...
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Transcript of Breath Sounds Don Hudson, D.O., FACEP/ACOEP. Why is Listening to Breath Sounds Important What do you...
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Breath Sounds
Don Hudson, D.O., FACEP/ACOEP
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Why is Listening to Breath Sounds Important What do you hear? Where do you listen? Does it make any difference? Can you treat what you hear? Who can do this? What equipment do you need? Can you base all of your treatments on what you
hear?
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Breath Sounds What are you hearing Remember all that wheezes is not asthma Cystic fibrosis, emphysema, & chronic
bronchitis also wheeze Wheezing basically means obstruction or
narrowing of the airway.
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Other causes of wheezing
Endobronchial tumors, foreign bodies, local mucosal edema, pulmonary edema & pulmonary emboli.
All wheezing can be labeled as dry rales or musical rales & they are continuous, non-interrupted adventitious sounds.
Crepitant rales or fine moist rales are high pitched crackling sounds heard during inhalation. Cause- opening snap of alveoli
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Rales continuing
Subcrepitant rales- medium pitched, inspiration, & caused by sudden opening of the bronchial walls.
Both Crepitant & Subcrepitant rales are thought to be caused by fluid in alveoli & bronchioles.
If this were pulmonary edema they become louder as the edema worsens.
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Absent Breath Sounds Consider Endotracheal tube
placement Atelectasis, complete obstruction Laryngeal spasm, morbid obesity Paralyzed diaphragm, pleural effusions,
Pneumothorax, severe pleural fibrosis, pneumonectomy
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Now what Listen Where What are you listening
for ?
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Think about what is inside Imagine what you
are hearing
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Where do you listen There at least 4 separate areas on both
sides of the body, top & bottom, front & back, right & left.
Each area should be listened to in both inspiration & exhalation phases
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Think about what you are listening for
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What would you expect to hear ?
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OUR TOOL
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The Stethoscope We all have one, but how is the best way to
use it. The sounds you hear depends on it
functioning properly. The ear piece is frequently the source of a
problem if you cannot hear well. They should fit well, be comfortable, be air
tight & angled slightly forward.
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How do you augment the sounds
You are listening for several types of sounds these may include:
Normal breath sounds, decreased or absent breath sounds & abnormal breath sounds.
These sounds need to be defined by when they occur, loudness, wet or dry, associated cough, etc..
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Use of the Stethoscope
The diaphragm- most suitable for listening to high-pitched sounds & murmurs.
These include high pitched rales, 1st & 2end heart sounds, some stenosis & regurgitation murmurs.
It should be applied to the skin of the chest wall with firm pressure.
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Use of the stethoscope
The bell- is best suited for low-pitched sounds & murmurs.
These include absent breath sound areas, 3rd & 4th heart sounds, fluid filled chest cavity, i.e. tumors, blood etc.
It should be applied with very light pressure barely making an air tight seal.
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What do you hear with the stethoscope
Sound is perceived according to its pitch, loudness & quality.
These are subjectively equated to the physical properties of sound waves, frequency, intensity, & harmonics.
You must train to have selective hearing, to listen for a single sound & then focus on it.
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Now you hear them, what next? Obviously we have all been trained to think
& that is what we need to do here. This is like a slide rule it gives you data but
it is left up to you to interpret what you hear. You need a whole picture of the patient to
make a good diagnosis.
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Remember the physical is important
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What do you hear & why?
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What happened & What do you hear
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What do you hear? Why?
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What do you hear & why?
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Describe What the sound is & how you hear this sound
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Diagnosis & Sounds.How do you hera them best?
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Listen & Percuss the chest
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Pulmonary Edema
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DIAGNOSIS & TREATMENT
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DIAGNOSIS & TREATMENT
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DIAGNOSIS & SOUNDS HEARD
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Is listening to Breath Sounds Important What do you hear? Where do you listen? Does it make any difference? Can you treat what you hear without other
input? Who can do this & what equipment do you
need? Can you base all of your Tx on what you
hear?
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Nothing is ever really SIMPLE
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Thank You for your Attention