texas children’s hospital€¦ · neuro exam checklist 9. cn xi –neck turn/shoulder shrug 10....
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The Neuro Exam Amee Moreno, CPNP AC/PC
Pediatric Neurosurgery
Texas Children’s Hospital
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•I have no financial disclosures.
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Objectives
•Identify normal brain anatomy
•Identify neuro exam techniques
•Identify variations from normal
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Nervous System Review
Central Nervous System
• Brain
• Cerebrum - frontal lobe, parietal lobe, occipital lobe, temporal lobe
• Diencephalon – thalamus and hypothalamus
• Brainstem – midbrain, pons, medulla
• Cerebellum
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Nervous System Review
• Central Nervous System
• Spine
• 8 cervical vertebrae
• 12 thoracic vertebrae
• 5 lumbar vertebrae
• 5 sacral vertebrae
• Coccygeal
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Nervous System Review•Peripheral Nervous System
• Cranial Nerves – 12 pairs
• Peripheral Nerves - 31 pairs
• 8 cervical
• 12 thoracic
• 5 lumbar
• 5 sacral
• 1 coccygeal
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Nervous System Review
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Nervous System Review
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Nervous System ReviewDeep Tendon Reflexes
Involuntary stereotypical response that involve at least one
afferent (sensory) and one efferent (motor) synapses, across
a single synapse.
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Assessment•Mental status, speech, and language
•Cranial nerves
•Motor system
•Sensory system
•Reflexes
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AssessmentThree Questions to ask yourself
• Is the mental status intact?
•Are right-sided and left-sided findings symmetric?
• If there is asymmetry or an abnormal finding, does the lesion lie in the central
nervous system or peripheral nervous system?
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Assessment
•Mental status
•Level of alertness
•Appropriate responses
•Orientation to person, place, and date
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Assessment
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Assessment
Cranial Nerve 1 - Olfactory
• Sense of smell
• Shortest cranial nerve
• One of two nerves that do not join with the brainstem.
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Assessment
Cranial Nerve II – Optic
• Visual acuity – Snellen eye chart
• Visual fields
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Assessment
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Assessment
Cranial Nerve II & III –
Optic and Oculomotor
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Assessment
Cranial Nerve III, IV, VI –
Oculomotor, Trochlear, and Abducens
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Assessment
Cranial Nerve V – Trigeminal
• Motor and Sensory of face
• Corneal reflex
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Assessment
Cranial Nerve VII – Facial
• Raise both eyebrows
• Frown
• Close eyes tightly
• Bare teeth
• Smile
• Puff out both cheeks
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Assessment
• Cranial Nerve VIII - Acoustic
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Assessment
• Cranial Nerve IX – glossopharyngeal
• Cranial Nerve X – vagus
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Assessment
• Cranial Nerve XI– Spinal Accessory
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Assessment
• Cranial Nerve XII – Hypoglossal
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AssessmentMuscle Tone
• Inspect muscle bulk – symmetric size and contour
• Inspect muscle tone – assess by feeling muscle’s resistance to passive stretch
• Assess muscle strength – shoulders, elbows, wrists, hand, hips, knees, ankle
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AssessmentMuscle Strength
•0 – No muscular contraction detected
•1 – A barely detectable flicker or trace of contraction
•2 – Active movement of the body part with gravity eliminated
•3 – Active movement against gravity
•4 – Active movement against gravity and some resistance
•5 – Normal muscle strength – no fatigue against full resistance
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AssessmentSensory Testing
•Test both distal lower and upper
extremities
•Sharp or dull, symmetry
•Wisp of cotton
•Tuning fork
•Proprioception
•
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AssessmentDermatomes
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AssessmentDeep Tendon Reflexes
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Assessment
Babinksi Assessment
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AssessmentCoordination
•Finger to nose test – observe
for smoothness or tremor
•Heel to chin test – observe for
smoothness
•Rapid alternating movements
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Assessment
•Assess gait – posture, balance, swinging of arms,
leg movements
•Romberg – test of position sense
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AssessmentNeuro Exam Checklist
1. CN I – assess smell
2. CN II – visual acuity, visual fields
3. CN II & III – pupillary response to light
4. CN III, IV, & VI – extraocular movements
5. CN V – sensory and motor face; corneal reflex
6. CN VII – facial expressions, close eyes
7. CN VIII – hearing
8. CN IX & X – gag, palate rise
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AssessmentNeuro Exam Checklist
9. CN XI – neck turn/shoulder shrug
10. CN XII – tongue movement
11. Motor testing – muscle bulk, tone, strength
12. Sensory testing – pain, light touch, proprioception, vibration
13. Reflexes
14. Coordination
15. Gait, Romberg
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Case Study 1• 7 year old female with no PMH who presented in clinic with ataxia and right eye esotropia.
• On exam, she is awake and alert, follows commands. Right CN VI palsy. Decreased right
facial sensation. Right facial weakness. Positive decreased facial sensation. Positive
Romberg. Left patellar reflexes 4+ with 2-3 beats of clonus in the left foot. All other
reflexes 2+. Ataxia noted. Unable to tandem walk. Pupils equal 3-4 mm, react briskly.
Nystagmus with upward eye movement.
• Where do you suspect to find this patient’s lesion?
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Case Study 1 (cont’d)
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Case Study 2•12 month old female with 1-2 week history of progressive lethargy,
ataxia, and downward gaze deviation.
•Exam: somnolent, irritable, 4 mm equal and reactive bilaterally,
Parinaud’s (downward gaze), MAE well, AF full.
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Case Study 2 (cont’d)
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References
•Bickley, L.S. (2009). Guide to Physical Examination
and History Taking. Philadelphia, PA:
Lippincott Williams & Wilkins.
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Thank you