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Manubrialsternal Angle?
- Also called Angle of Louis
- Location where trachae bifurcates. Located directly posterior to the sternum @ rib 2 (or 4th thoracic vertebra).
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Which lung is smaller and why?
The right is smaller because its area is compromised by the liver.
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Where are the spinal landmarks on the posterior thorax?
- Vertebra prominence (C7)
- Spinous process (T3)
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Which lung has three lobes?
Rt.
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How should you auscultate the lungs?
- Start at rt just below supraclavicular level, then left.
- As pt to take deep breaths each time he feels the ss move.
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Which broncial tree is more clinically significant and why?
Rt. Because it is wider, shorter, and more vertical, it is more likely to collect bacteria (pneumonia) and swallowed foreign objects.
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What are the four functions of the respiratory system?
- 1) O2 supply
- 2)Remove CO2. Inspiration response triggered by elevated CO2 levels.
- 3)Maintain homeostasis of acid/base balance
- 4)Maintain heat exchange.
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What are some things to think about in aged patients when it comes to the respiratory system?
- 1) Decreased vital capacity and decreased elasticity/mobility.
- 2) Increased DOE and increased risk of nfxn.
- 3) Thorax becomes more rounded (1:1)
- 4) When assessing lungs, pt is more likely to become dizzy and faint.
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How do you assess a cough?
- +/- hemoptysis
- +/- sputum
- ragged, dry, wet, etc.
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What is the formula for pack-years?
Number of Pack Years = (Packs smoked per day) × (years as a smoker)
or
Number of pack years = (number of cigarettes smoked per day × number of years smoked)/20 (1 pack has 20 cigarettes).
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Subjective thorax assessment for aging adult...
Any SOB with ADL?
How much daily activity?
- (For those with Hx of COPD, lung cancer, TB)
- How are you getting along each day? Any weight change
- in last 3 months? How much?
- Energy levels? Do you tire easily? How does your illness
- affect you at home/work?
Any chest pain with breathing?
Any chest pain after coughing or after a fall?
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How do you prepare for a thorax exam?
- Start at the back
- Proper draping (gown for pt should open in back)
- Examine just after neck, thyroid, lymph.
- Posterior first, then anterior
- Cleath ss and end piece
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Assessment of posterior chest...
Shape and configuration of chest wall
Anteroposterior:Transverse diameter (normal = 1:2)
What position does the pt favor? ie orthopneic vs. relaxed sitting upright vs. tripod. (Orthopneic: laying down with pillows stacked under back/neck to be able to breath. Tripod: standing or sitting, leaning forward, bracing for balance and trying to catch breath.)
Skin color and condition
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How do you check for symmetric expansion?
 - Place warmed hands on posterolateral chest wall with thumbs at level of T9 or T10. Slide hands medially to pinch up a small fold of skin b/w thumbs. Ask person to take deep breath. Hands serve as mechanical amplifiers; as the person inhales deeply, thumbs should move apart symmetrically. Note any lag in expansion.
- Novices tend to go to low.
- Pneumothorax (collapsed lung): Only one hand will move. With ausculation will have diminished or no sounds on side with stationary hand.
- Unequal expansion = atelectasis/pneumonia/fx ribs/pneumothorax
- Pain accompanies deep breathing when the pleurae are inflamed.
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Posterior Chest assessment palpation
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Posterior Chest Assessment (percussion)
- Sound over bone=flat.
- Organ=dull.
- Start at apices and percuss the band of normally resonant tissue across tops of both shoulders. Percuss at 5 cm intervals, avoid scapulae and ribs.
- Resonance- low-pitched, clear, hollow sound that predominates in health lung tissue in adult.
- Hyperresonance- lower-pitched booming sound found when too much air is present, as in emphysema or pneumothorax
- Dull note- soft, muffled thud- abnormal density in lungs- pneumonia, pleural effusion, atelectasis, tumor
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Posterior Chest Assessment Auscultation
- Person sitting, leaning forward slightly, arms resting comfortably across lab
- Instruct to breath through mouth, deeper than usual, stop if feels dizzy.
- Use diaphragm of steth.
- Extraneous noises- examiner’s breathing on steth. steth tubing bumping together, pt shivering, pt’s hairy chest, rustling of paper gown or paper drapes
- Stand behind person listen to posterior from apices at C7 to bases around T10 and lateraly from axilla down to 7th or 8th rib.
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- A- Inspiration< expiration
- B- Inspiration= expiration
- C- expiration < Inspiration
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What can cause abnormal breathing sounds?
- Decreased: COPD, mucous, pleurisy, pneumothorax
- bronchial tree is obstructed; loss of elasticity; obstruction
- between stethescope and lung (pleurisy, pneumothorax,
- pleural effusion)
- Increased: pneumonia
- consolidation (pneumonia) yield a dense lung area that
- enhances the transmission of sound from the bronchi
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What are Adventitious sounds?
Crackles
Wheeze:airway obstruction from asthma or emphysema or bronchitis
Rhonchi: Same as wheezes, just an older term.
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Bronchophony:
Increased lung density due to pathology will increase transmission of sound. Pt. stating "99" will be heard clearly.
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Egophony:
Person saying eeeeee will augment to aaaaaa, like a bleating goat. Again, over an area of consolidation.
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Whispered Pectoriloquy
With only small amount of consolidation, whispered voice sounds like it's being whispered directly into ss.
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What is Kyphosis?
- Kinking of the neck to compensate for poor posture resulting from barrel chest.
- Occurs mostly in the elderly.
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pectus excavatum
(sunken sternum=funnel chest);
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pectus carinatum
 - (forward protrusion of chest=pigeon breast)
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What is Stridor?
- Very, VERY high pitched wheezing.
- Always indicates emergency because airway is closing.
- croup or epiglottitis; foreign inhalation; may be life-threatening
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Pleural Friction Rub?
Sounds like dry leather rubbing together. Only heard for about 24 hours and accompanied by severe pain.
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