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27 Cards in this Set
- Front
- Back
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Percussion
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The act of tapping of the chest wall to produce a sound and palpable vibration to evaluate the underlying lung tissue
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Avoid percussion over...
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Female breasts and Bony structures
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How deep into the chest wall will lung tissue be evaluated?
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5-7 cms
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Ideally where should percussion be performed?
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Quiet environment
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Sound and vibration evaluates.....
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Pitch (low, high)
Intensity (loudness) |
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Normal density
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Normal resonance
Moderately Low pitched |
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Lower Density (More Air)
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Hyperresonant
Low pitched, drum like |
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Higher Density (More tissue)
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Dec. Resonance
Dull or flat |
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Increased Resonance
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Indicates excessive air trapped in the lung or pleural space
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Decreased Resonance
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Indicates consolidation of the lung or fluid in the pleural space
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Dull/Flat Percussion Results
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Pleural Effusion
Atelectasis Consolidation |
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Increased Resonance Results
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Peumothorax
Hyperinflation |
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Limitations of Percussion
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Obese/Muscular Chest Wall
-difficult to percuss effectively Abnormalities that are -Small in size -More than 5cm below surface |
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Usefulness of percussion
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Acutely ill patient situatuations
-Tension Pneumothorax Diaphragmatic Excusion |
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Diaphragmatic Excusion
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Posterior Chest wall
Pt. Inhales maximally and holds then exhales maximally Normal excursion is 5-7 cms Not exact, only approximatation |
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Auscultation Def.
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The process of listening for sounds produced in the body
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Auscultation will evaluate
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Identify mornal or abnormal lung sounds
Helpful with diagnosis Helpful with evaluating effects of treatment |
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Stethescope is used to detect what sounds?
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Breath sounds
Heart sounds Gastric Sounds Bowel Sounds |
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Parts of stethoscope
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Bell
Diaphragm Earpieces Tubing |
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Bell
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Open
Detects low pitched heart sounds Pressed lightly against skin only |
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Diaphragm
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High pitched sounds
Breath sounds Made to filter certain wavelenghts of sounds so BS are clearly aubidle Must be pressed firmly against skin of chest |
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Earpieces
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Binaural (both ears)
Oriented in forward direction |
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Tubing
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25-35 cm in lenght (11-16 inches)
must be able to reach around patient |
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Stethoscope Maintenance
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Inspect for cracks
Earpieces for wax Wipe down with isopropyl alcohol between pt |
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Auscultation tech.
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Room should be quiet
Pt should be seated in upright position Pt. instructed to actively breath-in -via open mouth -deeply Exhale passively |
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Diaphragm placement
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directly on skin
held firmly in place over intercostal space |
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Systematically side to side
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Corresponding location on opposite side
One full inspiration and exh. per location |
