Neuro - uworld Flashcards
Which nerve is involved in ocular sensation?
Trigeminal
Pt felt warm and nauseous prior to a syncopal episode
Neurocardiogenic (or vasovagal) syncope
Occurs due to excessive vagal tone
Preceded by n/v, bradycardia, or pallor
Precipitated by pain or stress
How do you correct over coagulation in a warfarin pt
Vit K and prothrombin complex concentrate (has Vit K dependent clotting factors)
Initial Tx of Guillain-Barre?
IVIG or plasmaphoresis
Wacky, wobly, wet
normal pressure hydrocephaly
Enlarged ventricles on MRI but normal opening pressure on LP
Dystonia of the SCM
Torticollis
Pt develops decreased hearing acuity and vestibular syx weeks after starting abx
Aminoglycoside (gentamicin) toxicity - hearing loss and vestibular syx
oscillopsia - sensation of objects moving in the visual field
Pt has consistent dull HA, decreased libido, and hemianopsia
Craniopharyngioma
Benign suprasellar tumor with visual defect, HA, and syx of pituitary changes
Arise from the remnant of Rathke’s pouch
Bitemporal heminopsia
Optic chiasm
Young obese female with constant dull HA and papilledema
Pseudotumor cerebri
Brain tumor w/ NL imaging and elevated CSF pressure
Tx - weight reduction and acetazolamide
If untreated - blindness
Causes of chemo induced peripheral neuropathy
Vincristine (Vinca alkaloid)
Cisplatin (platinum)
Paclitaxel (taxanes)
symmetrical parathesia in stocking and glove pattern
Pronator drift tests?
UMN or Pyramidal tract dz dz of the UE
Affected eye is unable to adduct and the contralateral eye abducts w/ nystagmus
Internuclear ophtalmoplegia
Convergence is preserved
Damage in the MLF
Worsening frontal HA’s, blurred vision when leading forward
Intracranial HTN (ICH Can have HA, n/v/ AMS,
ALS involves damage to?
the UMN (spasticity, hyperreflexia) and LMN (fasiculations)
Following a minor skin break in the face pt has severe HA, periorbital edema, EOM deficits
Cavernous sinus thrombosis
Edema because the venous system in the cavernous sisnus does not have valves
What finding confirms CNS lymphoma in a HIV +?
EBV DNA in the CSF
CT reveal global cerebral atrophy that is worse in the temporal and parietal lobes
Alzheimers
Parkinson’s is caused by an accumulation of
alpha synuclein w/in the substantia nigran
3 classic signs of PD?
resting tremor
rigidity
Bradykinesia
Best way to dx - at least two of these on PE
Pt has sparse and non fluent speech, impaired repitition, but can follow commands
Broca aphasia
can have right hemiparesis
Affects dominant temporal lobe (ie, R handed man, L hemisphere is dominant)
Lots of words w/o meaning, not able to follow commands, poor repeating
Wernicke aphasia
Fluent but with phonemic errors (sunny vs. funny), able to follow commands, no repeating
Conductive aphasia
Can see this in severe forms of Broca’s aphasia that extends to the arcuate fasciculus
loss pain and temp on ipsi face, contra body
Vertigo, nystagmus
ipsi hornor’s syndrome
Lateral medullary infarct (Wallenberg syndrome)
Occlusion of the PICA or intracerebral vertebral a.
Motor function is spared