Physical Examination (continued) Sean Ragain MD. Quick Review So far, you’ve covered a lot of...
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Transcript of Physical Examination (continued) Sean Ragain MD. Quick Review So far, you’ve covered a lot of...
![Page 1: Physical Examination (continued) Sean Ragain MD. Quick Review So far, you’ve covered a lot of ground. Let’s look at what you’ve already seen and heard.](https://reader035.fdocuments.us/reader035/viewer/2022062713/56649cb85503460f9497f37e/html5/thumbnails/1.jpg)
Physical Examination (continued)Sean Ragain MD
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Quick Review So far, you’ve covered a lot of ground. Let’s
look at what you’ve already seen and heard. Inspection, palpation, percussion, auscultation
(not necessarily in this order). Exam is modified per patient Only time and practice can lead to
proficiency!
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Review Head exam (HEENT and sometimes N-neck) Lung topography – imaginary lines,
landmarks, fissures, trachea, diaphragm, lung borders
Thoracic Inspection - i.e. barrel chest, pectus excavatum/carinatum, breathing patterns.
Thoracic Palpation – fremitus, crepitus, fractures.
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Review Thoracic Percussion – consolidation?
Atelectasis? Increased or decreased resonance?
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What’s Next??? Thoracic Auscultation! Or, auscultation of the
lungs. Mostly done with a stethoscope of course, but you
will often get a lot of info just from listening to the person breathe with your “naked” ears. Do your best to achieve quiet in the room so you can hear!
Diaphragm vs. bell of stethoscope. Mostly, we use the diaphragm, but the bell is particularly
good at picking up low frequency sounds, such as certain heart murmurs/valve disorders.
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Auscultation Some sources say to work your way down,
but your book says work your way up. Most important: Do side to side comparisons as you move throughout the lung fields.
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Stethoscope What is the difference between the bell and
diaphragm? Diaphragm sits flush against the skin, and therefore filters
a lot of low frequency sounds out. Most lung sounds are high frequency, so we usually
employ the diaphragm. The bell can be an adjunct to the diaphragm. Also, it may
be helpful in the emaciated patient. Don’t press too hard on the bell, this will essentially make
it like the diaphragm!
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Technique Quiet Room As little dress as necessary (and appropriate) If you must, a thin t-shirt or a hospital gown is
ok (but not preferrable) to listen through. At least one full respiratory cycle at each
point of auscultation.
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Breath Sounds (table 5-2) Tracheal breath sounds – Not surprisingly, these
should normally be heard over the trachea in the midline of the neck, superior to the sternal notch. They are loud, high pitched, and are equal in length during inspiration and expiration.
Bronchovesicular breath sounds – quieter than tracheal sounds, but otherwise quite similar. Heard around the upper half of the sternum, and between the scapulae on the back. If these sounds are heard coming from large parts of the lung, there may be pathology.
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Breath Sounds Vesicular – soft, muffled sound that is lower
in pitch and intensity than tracheal or bronchovesicular breath sounds. Has a longer inspiratory than expiratory component. This is what normal lungs should sound like.
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Breath sound intensity If markedly increased in intensity, they are
said to be harsh, the opposite would be described as diminished or even absent.
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Adventitious breath sounds Fortunately, not too many of these to
remember, because most diseases present with common adventitious sounds.
Can be classified as continuous or discontinuous. In general, continuous adventitious sounds, are
wheezes, and discontinuous ones are crackles.
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Adventitious breath sounds So we have… Crackles Wheezes Rales Rhonchi Stridor But the terms rales and rhonchi are falling into
disuse (to some degree). Let’s listen to some!
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Mechanisms Responsible (intro) Normal breath sounds are created by turbulent flow in the
airways Bronchial breath sounds heard in the lung periphery may
result from consolidation. Diminished sounds may result from emphysema, collapse,
obesity etc. Crackles are caused by the sudden opening of collapsed
airways, or by fluid in the airways. Wheezes are produced by the vibration of narrowed airways
as air passes through (like a reed instrument). Stridor is often caused by upper airway obstruction.
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Examination of the Precordium The precordium is the surface of the chest
wall overlying the heart. It is examined to assess the condition of the
heart. Also, we examine the precordium through the EKG.
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Review of Heart Topography The base of the heart lies directly beneath the
middle portion of the sternum The apex points downward and to the left,
extending to the midclavicular line near the 5th ICS.
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Inspection and Palpation of the Precordium Mostly in inspection, you are looking for
chest wall deformities, and whether or not you see heaves. What are heaves?
Also, you may try to find the PMI, especially with the initial exam. This may tell you if a person’s heart is enlarged.
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Auscultation of heart sounds The first heart sound (S1) is created by closure of the
AV valves. Which ones are those? The second heart sound (S2) is created by closure of
the aortic and pulmonary semilunar valves. A split S1 or S2 may occur if the opposing valves
close at different times. Significantly split S1 usually indicates a problem
(i.e. bundle branch block). Split S2 can be heard with deep inspiration, but this
should return to non-split with exhalation.
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Adventitious heart sounds There are also times when you will hear an S3
or S4. This is often found in heart failure other reasons for the heart to be stiff.
A loud S2 in the “P” area may indicate pulmonary hypertension.
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Areas for good auscultation
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Murmurs Caused by incompetent or stenotic valves
(usually). Systolic Murmurs are heard when the
semilunar valves are stenotic or when the AV valves are incompetent.
Diastolic Murmurs are heard when the AV valves are stenotic or when the semilunar valves are incompetent.
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Neurologic Examination The neurological exam is done by the
physician when brain or spinal cord injury is suspected.
RTs need to be familiar with the results of this exam because it has implications for the pulmonary system
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Neuro Exam Review
The CNS is made up of the brain and spinal cord The brain stem is the most important part of the CNS
regarding breathing. It is where breathing is regulated and controlled.
The spinal cord connects the brain to the peripheral body parts for sensory and motor function
The PNS is made up of the cranial nerves and 31 spinal cord nerves
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Assessment of the CNS General level of consciousness A coma is present when a person cannot be
awakened from a sleeplike state. The Glasgow Coma Scale (GCS) is often used to
document the level of neurological impairment. The patient’s response to pain is also used to assess
the CNS. The patient’s breating pattern often provides clues
about the level of brain stem function. Cheyne-Stokes breathing is a common finding with brain stem injury.
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GCS
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Cheyne-Stokes Breathing
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Neuro Assessment PNS
A variety of motor and sensory tests are done. Reflexes Strength Proprioception Touch, pinprick, vibration. Cranial Nerves
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Cranial Nerves and the Exam
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Reflexes
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Abdominal Exam The proper order of the abdominal exam is
more important than the order of the respiratory exam.
Inspection, auscultation, palpation, percussion.
Why?
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Anatomy of the Abdomen
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Abdomen An enlarged liver is known as hepatomegaly.
Right heart failure can cause this. Severe abdominal distension can impede
movement of diaphragm. Such as severe ascites, or bowel obstruction.
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Examination of the Extremities Clubbing
Often seen in patients with chronic cardiopulmonary disease. Cyanotic heart disease, COPD, and lung cancer may also lead to this.
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Cyanosis Peripheral cyanosis is a sign of circulatory
disease.
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Pedal Edema May be a sign of chronic lung disease and
right heart failure. But often occurs in healthy older individuals,
and may come and go in healthy younger individuals.
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Capillary Refill Will be delayed if cardiac output is poor. It is tested simply by compressing capillary
bed in an extremity, and seeing how long it takes to “pink up”.
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Peripheral Skin Temperature Cool skin is often poorly perfused skin.
THE END