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neurology
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100
Medical
Undergraduate 4
05/26/2017

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Term
benign intracranial HTN mx
Definition
repeated LP and acetazolamide
can be caused by a number of drugs e.g tetracyclines
occurs in overweight women

other drugs implicated:-
COCP
lithium
levothyroxine
Term
which drug can be used to treat neuroleptic malignant syndrome?
Definition
bromocriptine. it is a DA agonist
Term
what does ABCD2 stand for
what does it mean?
Definition
Age > 60
BP > 140/90
Clinical : unilateral weakness =2, speech disturbance =1

Duration: 10-59=1 and >60min =2
Diabetes =1


total score of 0-7
Term
how would you used the ABCD2 score to manage your pt?
Definition
the socre is from 0-7.
4 or more means you should

aspirin 300mg stat
seen by specialis within 24hour symptom onset
secondary prevention measures introduced as soon as diagnosis is made.
Term
ABCD2 score is 3 or less how do you proceed?
Definition
specialist assessment within 1 week of symptom onset
consider brain imaging
Term
a pt has a ABCD2 score of 3 but are experiencing crescendo TIAs how would you treat them>
Definition
treat as high risk
Term
1st line antithrombotic for people who have had a stroke?
what if they cant tolerate it?
Definition
1st line: clopidogrel

if not tolerated then aspirin and dipyridamole
Term
features of migraine without aura
Definition
typical unilateral
photo or phonophobia
last 4-72hours
nausea or vomiting
pulsatile quality, throbbing
not attributed to any other cause
Term
which nerve and nerve root is elicited in triceps reflex?
Definition
radial C7
Term
which nerve is injured in brachial plexus injuries?
clue C5-C7
Definition
musculocutaneous
Term
a person has a humeral neck fracture (NOT SHAFT #)

which nerve is like to be injured?

clue C5 -6
Definition
axillary
Term
person presents with wrist drop. which nerve is affected?

a fracture where in upper arm can affect radial nerve?
Definition
Radial nerve

fracture of the mid shaft of humerus can affect radial nerve. C5-C8
Term
which nerve supplies intrinsic hand muscles except LOAF?
Definition
ulnar nerve C8-T1
Term
medial epicondyle # affects which nerve?

damage to which nerve results in partial claw hand?
Definition
ulnar nerve

also damage to this nerve results in partial claw hand. the ring and pinky be clawed
Term
C5, 6 7 bells of heaven. which nerve am I talking about?
Definition
long thoracic nerve
Term
C5 6 palsy from shoulder dystocia AKA?
Definition
erbs palsy, due to damage to upper trunk of brachial plexus
Term
what palsy results from damage to lower trunk of brachial plexus?
Definition
Klumpkes injury
C8, T1

associated with Horners syndrome
Term
what are the LOAF muscles?
Definition
Lateral 2 lumbrical
Opponens pollis
Abductor pollic brevis
Flexor pollis brevis
Term
benserazide or carbidopa would be combined with which drug to rx parkinsons?
Definition
Levodopa
Term
which MAO-b inhibitor is used in Parkinsons disease and its MOA is to inhibit the breakdown of DA secreted by dopaminergic receptors
Definition
Selegiline
Term
features of cluster headaches
Definition
more common in men
more common in smokers
positive FHx
usually non throbbing
autonomic symptoms
partial ptosis is also common

mx: 100%, SC or nasal triptan

prophylaxis: verapamil or prednisolone
Term
dermatomes: posterior half of skull cap?
Definition
C2
Term
you wear a high turtleneck shirt to cover which dermatome?
Definition
C3
Term
ring and little finger makes which dermatome?
Definition
C8
Term
xiphoid process is which dermatome?
Definition
C7
Term
inguinal ligament?
Definition
L1
l for ligament
1 for 1nguinal
Term
dermatome to big toe?
Definition
L5

also supplies dorsum of foot except lateral aspect
Term
L5 and S1 supply different parts of the foot
what are they and how do you remember it?
Definition
L5 supplies big toe and dorsum of foot except lateral aspect.
remember L = largest of 5 toes.

S1 supplies little toe and lateral aspect of dorsum of foot
remember S = smallest of toes
Term
a person with epilepsy controlled by medications must be seizure free for how long in order to be able to drive their car?
Definition
12 months.
Term
1st seizure. how long off driving?
Definition
6 months

established epilepsy? need to be seizure free for 1 year
Term
if you have a stroke or TIA how long off driving?

do you need to tell DVLA?
Definition
1 month off driving

do not have to tell DVLA if you have no focal neurological deficits.
Term
if you have multiple TIAs over a short period of time how long off driving?
Definition
3 months and also tell DVLA
Term
what type of stroke results when the penetrating arteries to the brains deep structures is blocked?
Definition
lacunar stroke

present with pure motor or pure sensory
or sensorimotor
ataxix hemiparesis
dysarthria/clumsy hand syndrome
Term
what doe total anterior circulation infarcts involve?

arteries are middle and anterior
Definition
unilateral hemiparesis of face/arm/leg
homonymous hemianopia
higher cognitive dysfunction.

if only 2/3 are present then it is a partial anterior circulation infarct
Term
if a pt presented with any of the following symptoms what type of stroke would you be thinking?

pure sensory stroke
ataxic hemiparesis
unilater weakness +/- sensory loss to face arm, leg or all three
Definition
lacunar stroke.
Term
how would posterior circulation infarcts present?
which arteries do they involved?
Definition
presentation: cerebellar or brainstem syndromes
LOC
isolated homonymous hemianopia


they invoved vertebrobasilar arteries
Term
Webers syndrome
Definition
ipsilateral CN III palsy
contralateral weakness
Term
Wallenberg's syndrome
Definition
ipsilateral : ataxia, facial numbers, nystagmus, CN palsy e.g horners

contralateral: limb sensory loss
Term
Wallenberg's syndrome AKA?
which artery does it affect?
Definition
Lateral Medullary Syndrome
posterior inferior cerebellar artery
Term
how are strokes classified
Definition
oxford stroke classification AKA Bamford stroke classification
Term
what is the difference between simple and complex partial seizures?
Definition
with simple ones there is no disturbance of consciousness or awareness
Term
a pt presents with Parkinson's disease plus dysarthria and reduce vertical eye movements. what are you thinking?
Definition
Progressive supranuclear palsy
Term
which dementia may result from chronic head trauma e.g boxers?
Definition
Dementia Pugillistica
Term
parkinsonian plus syndromes what are they and how would you question read this?
Definition
Multi system atropy
Progressive supra nuclear palsy

if someone in the q has parkinsonism but also symptoms that suggest the cause is not idiopathic then you should consider parkinsonism plus syndrome
Term
Parkinsons plus postural hypotension = ataxia

which Parkinson plus syndrome is it most likely?
Definition
MSA
Term
what classification do you use to asses someone who comes in with a suspected stroke?
Definition
ROSIER
recognition of stroke in emergency room
Term
How to use the ROSIER score?

what score suggests a stroke is likely?
Definition
first exclude hypoglycaemia then assess the following

LOC/syncope -1
Seizure -1

new acute onset of:-
asymmetric facial weakness +1
asymmetric leg weakness +1
asymmetric arm weakness +1
speech disturbance +1
visual field defect +1

Stroke is likely is score is >0
Term
resting pill rolling tremor would be seen in which condition?
Definition
Parkinsons
Term
list features of essential tremor
this is improve by alcohol and rest
Definition
strong FHx
POSTURAL TREMOR: WORSE WHEN ARMS OUTSTRETCHED
titubation: head nodding.
Term
antibodies against pre synaptic voltage gate calcium channels. I am a para neoplastic syndrome. whats my name?
Definition
Lambert-Eaton syndrome
most have underlying malignancy small cell lung cancer
it typically affects muscles of proximal arms and legs

affects
Term
SE and CI of triptans
Definition
Triptan Sensations: tingling, heat, tightness, heaviness, pressure in throat or chest

CI: Hx or significant risk factors for IHD or CVD
Term
Cutaneous features of Tuberous Sclerosis?
Definition
AD condition
Depigmented patches of skin called Ash leaf spots : fluoresce under UV light
Shagreen patches: roughened skin over Lumbar spine
adenoma sebaceum in a butterfly distribution over the nose
Fibromata beneath nails
café au lait spots
Term
what medication and dose would you administer to an alcoholic fitting and who continues to fit 5 mins after oxygen is given?
Definition
Rectal diazepam 10mg

repeat once after 10-15 mins if necessary
Term
if a stroke was in the anterior cerebral artery where would the patient experience greater sensory loss? upper or lower limbs?
Definition
lower limbs would be more affected than the upper limbs
Term
if a person had sensory loss after a stroke and the upper limbs were more affected than the lower limbs, where would the stroke be?
Definition
Middle cerebral artery
Term
associated effects of having a middle cerebral artery stroke
Definition
contralateral hemiparesis
sensory loss upper> lower extremities
contralateral homonymous hemianopia
Aphasia
Term
when would you get contralateral homonymous hemianopia with macula sparing? ie where must the stroke be?
Definition
posterior cerebral artery
Term
stroke in which artery results I locked in syndrome?
Definition
Basillar artery
Term
what is the term given to the sudden and transient loss of muscular tone caused by strong emotion?
Definition
cataplexy

~ 2/3 of people with narcolepsy have cataplexy
Term
what is the most common cause for a high stepping gait in a bilateral foot drop?
Definition
peripheral neuropathy

if unilateral foot drop then think lesion in common peroneal nerve.
Term
what is syringomyelia and when does it become syringobulbia?
what are the typical features?
Definition
syringomyelia is when there is a development of a cavity within the SC.
if this cavity extends to the medulla it is cally syringobulbia.

features of syringe myelia:-
can be asymmetrical initially then progresses slowly in a shawl like pattern
motor: wasting and weakness of arms
sensory: spinothalamic sensory loss (pain and temp)
loss of reflexes: bilateral up going plantars

also seen: Horner's syndrome
Term
causes of bilateral facial nerve pasly?
Definition
Sarcoid
GBS
Lyme disease
Polio
Term
causes of unilateral facial nerve palsy
Definition
Bells
Ramsey Hunt
HIV
Diabetes
Parotid gland tumour
MS
acoustic neuroma
Term
if a person has stroke what level of cholesterol would make you initiate a statin?
many people wait to start pt on statin until 48 hours after. why is this?
Definition
levels > 3.5 and you should give statin.

clinicians wait 48 hours before starting statin because there is a risk of hemorrhagic transformation
Term
in a stroke when can thrombolysis be given?

what is recommended by NICE?
Definition
if presentation is with in 4.5 hours of symptom onset
if haemorrhagic stroke has been excluded.
Alteplase recommended by NICE.
Term
after stroke which medication is recommended 1st line in pts?
Definition
Clopidogrel

if they cannot take this then
aspirin and MR dipyramidole

if aspirin and clopidrogrel CI then dipyramidole alone.
Term
MOA dypiramidole?
Definition
inhibits phosphodiesterase enzymes and increases cellular cAMP levels.
Term
MOA of sodium valproate is to increase GABA activity

what are the side effects?
Definition
increased appetite and weight gain
alopecia: regrowth may be curly
hyponatremia
tremor
pancreatitis
hepatitis
Term
in CSF analysis the cells are predominantly lymphocytes and the glucose is more than half the value of the serum glucose.
lymphocytes can mean viral or TB meningitis but how would you use the glucose reading to differentiate the cause?
Definition
the cause is viral because the glucose is > 50% of the serum value.

In TB yes there would be lymphocytes predominating but the glucose would be low.
Term
in which form of meningitis would the appearance of CSF look like a fibrin web?
Definition
TB
Term
features of MSA
shy-dragger is a subtype of MSA
Definition
parkinsons sign
autonomic signs (atonic bladder, postural hypotension)
cerebellar signs
Term
most clinicians start meds after 2nd seizure. when does NICE recommend starting meds after the first seizure?
Definition
if there is a neuro deficit
brain imaging shows structural abnormality
if pt and their family feel a second seizure is unacceptable
EEG shows unequivocal electrical activity
Term
for partial seizures which medication is 1st line?
Definition
Carbamazepin
Term
for generalised seizures which medication is first line?
Definition
Sodium Valproate

2nd line: lamotrigine , carbamazepine
Term
absence seizures 1st line?
Definition
ethosuximide or valproate
Term
which type of seizure can carbamazepine exacerbate?
Definition
absence seizures
Term
a pt is on parkinsons medication you don't know which one. you take a urine sample and leave it to stand. it turns reddish and this gives you the answer?
Definition
Levodopa.

the effects of this drug usually wear off in 2 years so this is why clinicians tend to wait until later years to use medication
Term
in CN III palsy how would the eye be resting?
Definition
Down and Out
Term
crossed findings are characteristic of brainstem infarcts. what would you see in Webers syndrome?
Definition
ipsilateral CN III palsy
contralateral weakness
Term
man with bad asthma and bad migraine presents to GP. you know NICE says for migraine prophylaxis you can give propranolol or topiramate. which one wold you give him and why?
Definition
Topimarate because he has asthma and beta blockers are not advised in asthma.

but if it was a women of child bearing age you would give propranolol over topiramate because topiramate can be teratogenic and also reduce effectiveness of COCP
Term
when should you start prophylaxis treatment of migraine?
Definition
when they are having 2 or more attacks per month
Term
mx of migraine
Definition
acute: PO triptan and NSAID

prophylaxis: topiramate or propranolol
2nd line: 5-10 sessions of acupuncture over 5-8 weeks or gabapentin

advice people that riboflavin 400mg OD might be useful in reducing frequency and intensity in some people.
Term
complications of SAH
Definition
rebleeding
obstructive hydrocephalus due to blood in ventricles
vasospasm leading to cerebral ischemia
Term
which medication might you give post op after SAH surgery to reduce severity of neurological deficits?
Definition
Nimodipine 60mg/ 4hourly

calcium channel blocker
Term
which type of MND presents with mainly UMN in lower limbs and LMN in upper limbs?
Definition
amyotrophic lateral sclerosis

familial causes are associated with ch21. disruption on the super oxide dismutase gene
Term
a man has presented with stroke, ECG also shows he has AF. what is the initial management?
Definition
Aspirin is the initial management.

although he is in AF we do not give anticoagulation in the first 14 days after stroke due to the chance it can exacerbate secondary haemorrhage.
Term
ptosis and dilated pupil v
ptosis and constricted?
Definition
pptosis and dilated = CN III palsy

ptosis and constricted = Horners
Term
which vitamin deficiencies can cause sub acute combine degeneration of the spinal cord?
Definition
vitamin B12 and Vitamin E
Term
which 2 strep are linked to bad oral hygene?
Definition
strep mitis and sanguinis
Term
which heart defect can allow a venous cloth to pass to the left side of the heart and cause a stroke?
Definition
ostium secundum ASD
Term
when can you stop AED?
Definition
if seizure free for > 2 years. the meds are weaned over 2-3 months
Term
acute management of stroke dose and length

lt mx? dose and length
Definition
acute: 300mg aspirin after ischemic stroke is confirmed, cx for 14 days

LT: 75mg clopidogrel
Term
which type of haemorrhage occurs as a complication to chronic hypertension and is life threatening?
Definition
Pontine haemorrhage

pts often present with reduced GCS
quadriplegia
miosis
and absent horizontal eye movements.
Term
in median nerve entrapment there is weakness of thumb abduction. which muscle is this?
Definition
opponens pollicis brevis
Term
mx of median nerve entrapment?
Definition
wrist splints at night
corticosteroids
surgery: flexor retinaculum division
Term
features of cubital tunnel syndrome.
this is due to compression of the ulnar nerve
Definition
intermittent tingling of 4th and 5th fingers
this may be worse when elbow is rested on a firm surface or is flexed for extended periods
later there is numbness in 4th and 5th fingers with associated weakness.
affects men twice as much as women
Term
mx of cubital tunnel syndrome
Definition
physio
pain killers
surgical transposition of the nerve
Term
a pt has anterior resection rectum surgery. which nerve is at increased risk for damage?
Definition
hypogastric autonomic nerves
Term
a man has surgery to fix an inguinal hernia, which nerve Is at risk?
Definition
illioinguinal nerve
Term
carotid endartecomy can damage which nerve?
Definition
hypoglossal nerve
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