uworld7

Question 1

central cord syndrome affects CST and STT of more upper or lower extremities?

Answer 1

upper

Question 2

tick borne paralysis presentation

Answer 2

ascending parlaysis

no fever, sensory loss, autonomic dysfunction

Question 3

most common cause of CN 3 palsy

Answer 3

ischemic neuropathy- DM 2

Question 4

migraine abortive therapies

Answer 4

NSAIDs
acetaminophen
triptans
ergots
anti-emetics

Question 5

migraine preventative meds

Answer 5

topirimate
valproic acid
TCAs
propranolol

Question 6

wernicke encephalopathy is due to…

Answer 6

thiamine def

-anorexia, alcoholism, hyperemesis

Question 7

clinical features of wernicke encephalopathy

Answer 7

oculomotor dysfunction (horizontal nystagmus, abducens palsy)

postural and gait ataxia

Question 8

minute puntate hemorrhages with blurring of grey-white junction on CT. Think…

Answer 8

diffuse axonal injury

Question 9

if someone has bulbar weakness and they show CT of the chest, what should you think…

Answer 9

MG (theyre showing thymoma)

Question 10

momentary vision loss with head positioning. think…

Answer 10

papilledema

Question 11

which parkison drug is used for younger patients with primarily a tremor

Answer 11

trihexphenidyl

Question 12

SAH shows bleeding where in CT

Answer 12

around brainstem and basal cisterns (central region)

Question 13

pseudotumor cerebri on imaging

Answer 13

normal

Question 14

dose of corticosteroids for MS attack

Answer 14

methylprednisolone 500- 1000 mg/day for 3-5 days

Question 15

beta interferon MOA

Answer 15

enhance suppressor T-cell function, decreases lymphocyte traffic into the CNS, reduces antigen presentation, and lessens cytokine production.

Question 16

Dalfampridine MOA

Answer 16

oral potassium channel blocking drug which improves walking speed, presumably by enhancing conduction in demyelinated areas in MS.

relieve limb spasticity, pain, paresthesia, and fatigue.