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Flashcards in Rapid fire Deck (18):
1

pupil-involving third nerve palsy

posterior communicating artery aneurysm until proven otherwise

2

how to localize cause of Horner's syndrome

using anhidrosis
tells if 1st, 2nd, or 3rd order neuron

3

1st order neuron- Horners

brainstem/spine

4

2nd order neuron- Horner's

brachial plexus/lung apex

Pancoast Tumor

5

3rd order neuron- Horner's

throat/jaw pain

Carotid dissection

6

painful Horner's- what do to

consider carotid dissection

MRI, CT angio, anticoagulants.
worried about blood clots embolizing

7

where does bitemporal hemianopia localize?

optic chiasm

8

optic chiama impacted by what structure

pituitary

9

homonymous hemianopias localize to

optic tract
same side

10

Sudden onset w/ homonymous visual loss

likely occipital stroke

11

Parinaud syndrome

• Upgaze paresis
• Convergence retraction saccades
• Eyelid retraction

located in dorsal midbrain
midposition/large pupils
worry about metastasis or infarction

12

APD

worry about optic nerve

13

MS- associated optic neuritis

ovoid periventricular lesions consistent with inflammation/lesions

14

Swollen, pale optic nerve
elderly person

means restricted blood flow to the nerve

think about giant cell arteritis
extracranial vessel vasculitis

give steroids

15

Wernicke's encephalopathy signs

• not all patients have history of alcohol use
• cerebellar pathways until proven otherwise
• gaze-evoked nystagmus
• usually w/ 6th nerve palsies and nystagmus
• risks for nutritional deficiencies

16

Wernicke's encephalopathy treatment

thiamine (high dose)

17

R INO localizes to

R MLF

ipslateral impaired adduction
nystagmus of abducting eye

18

one and a half syndrome

• Ipsilateral MLF- ipsilateral adduction deficit
• Ipsilateral abducens nucleus or PPRF- ipslateral horizontal gaze palsy
• If abducens nucleus: VII can also be involved