UW 1 Flashcards

1
Q

central cord syndrome - etiology, definition

A

hyper-extension injuries in elderly with pre-existing degenerative changes in cervical spine
- damage in corticospinal tracts and decussating fibers of the lateral spinothalamic –> weakness in upper extremeties, maybe loss of pain and Q

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2
Q

hypertensive encephalopathy - acute hemorrhage on CT

A

no

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3
Q

MCC of intracerebral hemorrhage in children

A

cerebral AV malforamation

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4
Q

sub hemorrhage - complications

A
  1. rebleeding (1st 24h)
  2. vasospam (after 3 days)
  3. hydrocephalus/ increased ICP
  4. seizures
  5. hyponatremia (SIADH)
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5
Q

sub hemorrhage - treatment

A

angiographic procedure to stabilize anerysm by coilling +/or stenting (endovascular therapy)
2. nimodipine

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6
Q

clinical features of corenal abrasion - etiology

A
  1. trauma (eg. fingernails, paws, or foregin bod, wood, glass, paper) lodging under the lid
  2. contact lens
  3. spontaneous (no obvious foregin body or injury)
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7
Q

clinical features of corneal abrasion - clinical presentation

A
  1. severe eye pain due to trigeminal nerver sensory innervation (excpet in patients with V dysfunction due to tumor, trauma, prior VZV)
  2. possible sensation of foregin body on the eye
  3. photophobia with reluctance to open
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8
Q

clinical features of corenal abrashion - evaluation

A
  1. penlight test to document papillary function + inspect for foregin body
  2. visual acuity (referral if decreased)
  3. fluorescein examination after above test to show staining defect
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9
Q

trigeminal neuralgia bilaterally

A

MS

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10
Q

hemorrhagic stroke after ischemic stroke - when

A

within 48h –> emergency head CT

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11
Q

atrophy of lenticular nucleus - disease?

A

wilson

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12
Q

CN III - area of parasympathetic vs motor fibers

A

parasym: out
motor: central

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13
Q

craniopharyngioma - age

A

mc children but 50% in adults

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14
Q

sellar masses - types

A
  1. benign tumors: pituitary (MC), cranipharyngioma, meningioma, piticytoma (low grade glioma)
  2. malignant:
    - 1ry (germ cell, chordoma, lymphoma,),
    - metastatic (eg. lung, breast)
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15
Q

MS - LP (useful?)

A

only if diagnosis from clinical and MRI is not clear

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16
Q

MS exacerbation - plasma exchange?

A

only if does not response to steroids

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17
Q

non exertional stroke

A

affects individuals at the extremes of age incapable of obtaining adequate fluids and removing themselves from a hot environment

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18
Q

heat stroke - complications

A

rhabdomyolysis, renal failure, acute resp distress syndrome, DIC

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19
Q

idiopathic intracranial HTN - diagnosis

A

MRI +/- MRV

- LP (CSF presure mre than 250)

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20
Q

RF of stroke (most potent?)

A
  1. stroke (most potent)
  2. hypercholesterolemia
  3. DM
  4. smoking
  5. sedentary lifestyle
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21
Q

Argyl roberston

A

normal react in accommodation but not in light

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22
Q

neurosyhilis develops more rapidly if / treatmetn

A

HIV (+)

- 10-14 wks penicillin (IV)

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23
Q

dellirium - first step

A

focused history, physical evaluation, pulse oxymetry ,review of all medication, CBC, serum electrolytes, urinalysis

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24
Q

thearpy of ischemic stroke

A
  • within 3-45h: alteplase
  • non in antiplatelets: aspirin
  • on aspirin: aspirin + dipyrodamole or clopidogrel
  • with AF: long term anticoagulation
  • with large ACA occlusion within 24 hours of symptom: mechanical thrombectomy (regardless if received alteplase) –> then aspirin
  • with intracranial large artery atheroscleorisis: aspirin + clopidogrel for 90 d –> then aspirin
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25
Q

which antiplatelet can prevent early stroke after a stroke

A

only aspirin

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26
Q

serious bleeding (eg. intracerebral) due to excess anticoagulation with wafarin - management

A

stop the drug

  • IV vit k
  • prothrombin complex concentrate (fresh frozen plasm for 2nd line)
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27
Q

ototoxicity of aminoglycoside

A

damaging of the cochlear cells and some aminoglycosdes (esp gentamycin) can also damage motion sensitive hair cells in the inner ear to cause selective vsetibular injury (vestibulopathy) without significant ototoxicity
- oscillopsia: sensation of object moving around in the visual field when looking in any direction

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28
Q

cauda equina syndrome vs conus medullaris syndrome

A
  • cauda: bilateral, severe radicular pain, saddle hypo/anesthesia, assymetric motro weakness, hyporeflexia, areflexia, late-onset bowel + bladderdysfunction
  • conus: sudden onset severe back pain, perianal hypo/anesthesia/ symmetric motor weakness, hyperreflexia, early bowel + bladder dysfunction
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29
Q

tick-borne paralysis

A

rapidly progressive ascending paralysis (may be assymetrical), absence of fever sensory abnormalities, normal CSF examination –> ticks must feed 4-7 days and then are typically found on patients after menticulous searching –> removal –> spontaneous improvement

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30
Q

levidopa - involuntarily movements

A

as a SE after 10 years

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31
Q

TIA vs new MS episode

A

MS lasts for days to weeks

TIA –> less than 24h

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32
Q

initial treatment of TIA

A

modifying risk factors: aspirin ,statin,control BP

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33
Q

carvenous sinus thrombosis

A

facial/ophthalmic venous system is valveless –> uncontrolled infection of the skin can results in cavernous sinus thrombosis –> severe headache, bilateral periorbital edema, CN 3,4,5,6 defects

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34
Q

amaurosis fumax - description

A

curtain descending

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35
Q

Trihexyphenidyl - mechanism of action / clinical use

A

anticholinergic

- treatment of Parkinosn, generaly in tyounger patients where tremor is the 1ry symptom

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36
Q

aspirin after alteplase

A

wait 24 hours

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37
Q

lacunar stroke - mechanism

A

due to microatheroma formation feand lipohyalinosis in the small penetrating arteries of the brain –> they only affect the internal capsule and result in pure motor hemiparesis

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38
Q

lacunar stroke - RFs

A

hypertension, hyperlipidema, DM, smoking

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39
Q

Myasthenia Gravis - women vs men

A

women: 20-30 years old
men: 60-80

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40
Q

Myasthenia gravis - causes of exacerbation

A
  1. infection
    2, surgery esp thymectomy)
  2. pregannta/childbirth
    medications:
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41
Q

medications that can cause exacerbation of Myasthenia gravis

A
  1. antibiotics: quinolones, aminoglycosides
  2. anesthetics
  3. cardiac meication (beta blokcets, procainaminde)
  4. otehr: MgSO4, penicillamine
  5. tapering of immunosuppressive medication
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42
Q

Myasthenia gravis - diagnosis

A
  1. beside: edrophonium (Tensilon test), ice pack test
  2. Acetylocholine receptor antibodies (higly specific
  3. Ct scan : thymoma
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43
Q

Myasthenia gravis - treatment

A
  1. ACEi
  2. immunotherapu
  3. thymectomy
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44
Q

brain metastasis - management

A
  • surgical resection is recommended for solitary brain metastasis in patients with a good performance status + stable intracranial disease
  • if multiple bran metastases –> whole brain radiation
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45
Q

spastic gait is seen in

A

UMN lesions (ALS)

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46
Q

Parkinson - gait

A

hypokinetic gait: general slowing of all motor activity –> stooped posture and walk in series of short, accelerating steps (shuffling gait)

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47
Q

spinal epidural abscess - epidemiology

A
  • S. aureus (65%)

- inoculating sources (distal infection, spinal procedure, IV drugs)

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48
Q

spinal epidural abscess - manifestation

A

classic triad

  1. fever (50%)
  2. focalsevere back pain
  3. Neurologic findings
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49
Q

essential tremor - 2 other characteristics

A
  • bilateral on hands, usually no legs

- isolated head tremor without dystonia

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50
Q

physiologic tremor

A

low amplitude (10-12 Hz) not visible under normal conditions

  • acute onset with increased sympathetic activity (eg. drugs, hyperthyroidism, anxiety, caffeine)
  • usually worse with movement + can involve the face + extremities
  • postural tremor (eg. outstretched hands)
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51
Q

aortic valve endocarditis - surgery?

A
  1. significant valvular dysfunction –> HF
  2. persitent or difficult to treat meidically
  3. reccurent septic embolization
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52
Q

when there is no point for endarterectomy

A
  1. 100% occlusion

2. less than 5 years of life expectancy

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53
Q

DDX of myopathy and CK/ESR

A
  1. Glucocortcoid: both normal
  2. Polymyalgia rheumatica: increased ESR
  3. infl: boh iincreased
  4. statin: increased CK
  5. Hypothyroid: increaesd CK
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54
Q

type of alzheimer memory loss

A

ealry insidious short term memory loss, language decificts, spatial disoreientation, later personality changes

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55
Q

torticollis?

A

common form of focal dystonia involving the SCM muscle

-iodiopathic or very often medication related (typical antipsychotics, metoclopramide, prochlorperazine)

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56
Q

heart acceleration after atropine administration in dead pearson

A

no (no vagus)

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57
Q

restless leg syndrome - diagnostic criteria

A

urge to move the legs and:

  1. unpleasant sensation in the legs or tother bodyparts (eg. arms) that begin/worsen during inactivity (lying down, sitting)
  2. unpleasant sensation in the legs that are releived by movement and worsen or occur only at evening/night
  3. not explained by other disorder
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58
Q

restless legs syndrome - 2ry causes

A
  1. iron def anemia
  2. uremia
  3. DM
  4. MS, Parkinson
  5. Pregnancy
  6. Drugs
59
Q

restless leg syndrome - treatment

A

mild intermittent symptoms: iron, supportive measures (massage etc), avoid aggravating factors (sleeg. sleep deprivation
- persistent/moderate to sever: 1st line is dopamine agonists (pramiperxole), alternate is alpha - 2 delta Ca2+ channel ligants

60
Q

how to confirm diagnosis of parkinson

A

physical examination

2/3: resting tremor, rigidity, bradykinesia

61
Q

intracerebrral vs sub hemorrhage regarding manifestation

A
  • intracerebral focal symptoms appear early followed by features of increased ICP (vomiting etc), history of un
  • sub: severe headache meningeal irritation, focal deficits uncommon
62
Q

alzheimer - where is the atrophy

A

temporal and parietal lobe atrophy, most prominent in the medial temporal lobes and hippocampus

63
Q

alcoholic cerebellar degeneratio - epidimiology

A

after 10 years of heavy alcohol

- degeneration of Purkinje cells (cerebellar vermis)

64
Q

alcoholic cerebellar degeneration - manifestations

A
  • develops over weeks to months
  • wide based gait
  • in-coordination in legs
  • cognition usually intact
65
Q

alcoholic cerebella degeneration - diagnosis

A

clinical: impaired tandem walking heel-knee-shin BUT PRESERVED FINGER NOSE
- CT/MRI: cerebellar atrophy

66
Q

alcoholic cerebellar degeneration - treatment

A
  • alcohol cessation
  • nutritional supplements
  • ambulatory assistance devices (eg. walker)
67
Q

gait disorders - types

A
  1. cerebellar
  2. gait apraxia (frontal gait
  3. Parkinsonian
  4. Steppage
  5. Vestibular
68
Q

cerebellar gait - description / associated signs / causes

A

description: ataxic, staggering, wide based
- dysdiadochokinesia, dysmetria, nystagmus, Romberg sign
- Cerebellar degeneration, stroke, drug/alcohol intoxication, Vit B12 def

69
Q

gait apraxia (frontal gaint) - description, associated signs, causes

A

magnetic (freezing): start + turtn hesitation

  • demential incontinence, frontal lobe signs
    causes: frontal lobe degeneration, normal pressure hydrocephalus
70
Q

parkisonian - description, associated, causes

A
  • short steps, shuffling
  • bradykinesia, resting tremor, postural instability, decreased arm swing
  • Parkison
71
Q

steppage - description, associated, causes

A
  • Footdrop, excessive hip + knee flexion while walking, slapping quality, falls
  • distal sensory + weakness
  • motor nephropathy
72
Q

vestibular - description, associated, causes

A
  • unsteady, falling to one side
  • normal sensation, reflexes + motor strength, nausea, vertigo
    • acute labyrinthitis, Meniere
73
Q

intracerebelar hemor - characteristics

A

history of uncontrolled hypertensionm coagulopathy, ilicit drugs

  • symptomes progress over mins to hours
  • focal neurologic symptoms appear ealy, followed by featrues of increased intracranial pressure (eg. vomiting, headache …)
74
Q

spontaneous sub hemorrhage - characteristics

A

bleeding from arterial saccular (berry) or AV malformation

  • severe headache at onset
  • menningeal irritation
  • focal deficits are uncommon
75
Q

Cancer pain management

A
  1. mild –> nonopioids (acetaminophen, NSAID)
  2. moderate –> weak opioid +/- nonopioids (codeine, hydrocodone, tramadol
  3. severe –> short acting opioids (morphine, hydromorphine) –> calculate total daily dose and convert it to long acting formulation (fentanyl patch, oxycodone) plus short acting opiods for breakthrough pain
76
Q

other than campylobacter organisms that are associated with Guillain barre

A

HSV, Mycoplasma, Hemophilus infl

77
Q

Wernicke encephalopathy - associated conditions

A
  1. chronic alcoholism (MC)
  2. malnutrition (anorexia nervosa)
  3. hyperemesis gravidarum
78
Q

wernicke encephalopathy - clinical features

A
  1. encephalopathy
  2. oculomotor dysfunction (eg. horizontal, nystagmus, bilateral abducens palsy)
  3. postural + gait ataxia
79
Q

wernicke encephalopathy - treatment

A

IV thiamine followed by glucose infusion

80
Q

positive antibodies againste aChe receptor - next step

A

chest CT

81
Q

exertional heat stroke - RF

A
  1. strenuous activity durin hot + humid weather
  2. dehydration
  3. poor acclimatization
  4. lack of physical fitnesss
  5. obesity
  6. medications: anticholinergics, antihistamines, phenothiazines, tricyiclics
82
Q

exertional heat stroke - clinical manifestation

A

core Q more than 40 immediately after collapse AND

  • CNS dysfunction
  • additional organ or tissue damage
83
Q

exertional heat stroke - management

A
  1. rapid cooling: ice immersion preferred, can consider high flow cool water dousing, ice/wet rotation, evaporateive cooling
  2. fluid resuscitation
  3. electrolyte corrction
  4. management of end organ complications
  5. no role of antipyretic therapy
84
Q

foodborne botulism - pathogenesis

A

C. botiulinum toxin inhibirs presenaptic Ace release at NMJ

85
Q

foodborne botulism - sources

A

improperly canned foods (fruits, vegetables

- aged seafood (cured fish

86
Q

foodborne botulism - manifestation

A

acute onset within 36h of ingestion

  • bilateral cranial neuropathies: Blurred visision, diplopia, facial weakness, dysarthria, dysphagia
  • symmetric descending muscle weakness
  • diaphragmatic weaknes with resp failure
87
Q

foodborne botulism - treament

A

equine serum heptavalent botulinum antitoxin

88
Q

foodborne botulism - diagnosis

A

serum analyssis for toxin

89
Q

CSF - WBC count in normal, bacterial meningitis, TB, viral, guillain barre

A

normal: 0-5
bacterial: more than 1000
TB: 100-500
viral: 10-5000
guillain barre: 0-5

90
Q

CSF - GLUCOSE count in normal, bacterial meningitis, TB, viral, guillain barre

A

normal: 40-70
bacterial: less 40
TB: less 45
viral: 40-70
guillain barre: 40-70

91
Q

CSF - PROTEIN count in normal, bacterial meningitis, TB, viral, guillain barre

A

normal: under 40
bacterial: more than 250
TB: 100-500
viral: less than 150
guillain barre: 45-1000

92
Q

myasthenic crisis - precipitating factors

A
  • infection or surgery
  • pregnancy or childbirth
  • tapering immunosuppresive drigs
  • medication
93
Q

myasthenic crisis - signs/symptoms

A

elevated generalized + oropharyngeal weakness

- resp insufficiency/dyspnea

94
Q

myasthenic crisis treatment

A

intubation for deteriorating resp status

  • plasmapheresis or IVIG, + corticosteroids
  • maybe hold temporarily ACEi to reduce airway secretions and the risk of aspiration
95
Q

….. are useful for treating acute agitation in elderly patients with dementia

A

typical and atypical antipsychotics

96
Q

stiff person syndrome

A

rare autoimmune disorder

  • rigidity, stiffness, muscle spasms involving the axial muscles
  • autonomic instability can also occur
  • normal mental status
97
Q

Type A vs type B adverse effect reaction

A

Type A: dose-dependent

Type B: unexpected, dose-independent

98
Q

broca vs wewernicke vs conduction regarding associated features

A

broca –> right hemiparesis (face + upper limb)
wernicke –> right superior visual field defect
conduction: none

99
Q

suspicion of dementia - next step

A

neurocognitive testing –> next –> lab tests

100
Q

brain abscess - micriobiology

A
  1. S. aureus
  2. Viridans strep
  3. anaerobes
101
Q

which patient are at increased ris for heart embolic strokes

A

AF PLUS existing structural heart disease

102
Q

Common causes of vertigo

A
  1. Meniere
  2. Benign paroxysmal positional vertigo
  3. Vestibular neuritis
  4. Migraine
  5. Brainstem / cerebellar stroke
103
Q

vestibular neuritis - characteristics

A

acute single episode that can lasts days

  • often follows viral syndrome
  • abnormal head thrust test
104
Q

benighn paroxysmal positionalvertigo - diagnostic vs treatment maneuvers

A

diagnosis: Dix-Hallpike
treatment: Epley

105
Q

Uhthoff phenomenon

A

symptoms of MS may worsen during exposure to high Q

106
Q

nystagmus - lesion in lateral or medial cerebellum

A

medial

107
Q

broad gait - lesion in lateral or medial cerebellum

A

medial

108
Q

postoconcussive syndrome?

A

traumatic brain injury of any severity can lead to (few hours to days later) it

  • headache, confusion, amnesia, low concentration, vertigo, mood alternation, low quality of sleep, anxiety
  • resolve in weeks to months
  • maybe persistent for more than 65 months
109
Q

initial diagnostic workup of a 1st time seizure in an adult should include

A

basic blood tests (electrolytes, glucose, Ca2+, Mg2+, CBC) RENAL + LIVER), AND A TOXICOLOGY SCREEN –> IF UNPROVOKED –> FURTHER EVALUATION WITH NEUROIMAGING AND eeg

110
Q

CT after a seizure - contrast or not

A

not

111
Q

pronator drift

A

relative sensitive and specific sign for UMN or pyramidal tract disease affecting the upper extremities
- performed by the patient having outstretched the arms with the palms up and eyes closed –> the affected arm drifts downward and the palms pronates

112
Q

types of infarct in the posterior limb of internal capsule

A

lacunar infract

113
Q

clinical presentation with infract in the posterior limb of internal capsule

A

UNILATERAL motor impairment

  • no sensory or cortical deficits
  • no visual anomalies
114
Q

urinary incontinence - infract

A

anterior cereb artery

115
Q

another finding in idiopathic intracranial HTN

A

empty sella (in 70%)

116
Q

acute angle glaucoma - complications

A

if untreated can develop permanent vision loss within 2-5h of symptom onset

117
Q

eldery patients with frequent fall - think of

A

chronic subdural

118
Q

lacunar infarct - manifestation

A
  • absence of cortical signs (aphasia, agnosia, neglect, apraxia, hemianopia, seizure, or mental status change
  • common syndromes: pure motor hemiparesis (most frequent), pure sensory, ataxic, dysarthria-clumsy hand
119
Q

chemi-induced periphearal neuropathy

A
  • symmetric distal sensory neuropathy that spreads in stocking-glove pattern
  • early loss of ankle jerk reflexes, loss of pain and Q
  • occasionally motor
120
Q

multiple system atrophy

A
  1. Parkinsonism
  2. orthostatic hypotension, impotence, incontincence or other autonomic symptoms
  3. widespread neurological signs
    antiparkinsonism drugs are ineffective
    - treat with fluids, fludrocortisone, salts, a1 agonists,
121
Q

Riley day syndrome or familiar dysautonomia

A

gross dysfunction of the autonomic nervous system with severe orthostatic hypotension. Also

122
Q

symptoms of sever hypokalemia

A

flaccid paralysis, hyporeflexia, tetanym rhabdomyolysis, arrhythmia

123
Q

cauda equina vs conus medullaris - bowel + bladder dysfunction

A

late in cauda

- early in conus

124
Q

cauda equina vs conus medullaris - symmetric?

A

cauda: asymmetric
conus: symmetric

125
Q

cauda equina vs conus medullaris - hypo/anesthesia?

A

cauda: saddle
conus: perianal

126
Q

acute neuritis epidemiology

A
  1. 1ry in young women
  2. MS
  3. immune mediated demyelination
127
Q

optic neuritis - manifestations

A
  • acute, peaks at 2 wks
  • monocular vision loss
  • eye pain with movement
  • washed out color vision
  • afferent pupillary dfect
128
Q

optic neuritis - diagnosis

A

MRI of the orbits + brain

129
Q

optic neuritis - treatment

A

IV steroids

- 35% of cases recur

130
Q

NSAID resistant pain in a previeous heroin addict

A

give IV morphine and close observation

131
Q

neurologic findings of haemorrhage on basal ganglia

A
  • contralateral hemiparesis + hemisensory lsss
  • homonymus hemianopsia
  • gaze palsy
132
Q

neurologic findings of haemorrhage on cerebellum

A
  • NO hemiparesis
  • facial weakness
  • ataxia + nystagus
  • occipital headache + neck stiffness
133
Q

neurologic findings of haemorrhage on cerebral lobe

A

contralateral hemiparesis + hemisensrory loss

  • nonreactive miotic pupils
  • upgaze palsy
  • EYE deviate Torward hemiparesisis
134
Q

neurologic findings of haemorrhage on pons

A

deep coma + total paralysis wihin minuts, pinpoint reactive pupils

135
Q

neurologic findings of haemorrhage on thalamus

A
  • contralateral hemiparesis + hemisensrory loss
  • nonreacive miotic pupils
  • upgaze palsy
  • eye deviated TORWARD hemiparesis
136
Q

Alzheimer vs frontotemporal

A

In Alzheimer, the personality changes are a late finding

137
Q

Parkinson drugs that cause hallucinations

A
  1. Levodopa
  2. Entacapome
  3. Tolcapone
138
Q

Seizures - danger of permanent damage after …. minutes

A

5

139
Q

Retnal venous thrombosis can progress to

A

Ischemic form (painful)

140
Q

Presbicusis also has

A

Tinnitus

141
Q

Anterior cord syndrome

A

Motor, Q, pain

142
Q

Brain abscess in neuro imaging

A

Uniform contrast enhancement

143
Q

Bublar symptoms is a sign of

A

UMN

144
Q

First step to avoid cluster headaches

A

Avoid precipitant factors (alcohol, physical exam)