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IM Neuro Ahmed
KYCOM Block 13
113
Medical
Graduate
01/30/2014

Additional Medical Flashcards

 


 

Cards

Term
signs of hypoglycemia 4
Definition
tachycardia
sweating
dilated pupils
sometimes mimics herniation
Term
labs hypoglycemia
Definition
low plasma glucose
Term
tx hypocglygcemia
Definition
iv glucose
Term
signs bacterial meningitis 4
Definition
headache
fever
brudzinski
kernig
Term
LP signs bacterial meningitis
Definition
CSF gram staim positive
low glucose
increased protein
Term
tx bacterial meningitis
Definition
iv antibiotics
Term
signs subarachnoid hemorrhage 5
Definition
headache
htn
retinal hemorrhage
brudzinski
kernig
Term
labs subarachnoid hemorrhage
Definition
non clearing RBC in CSF
subarachnoid blood/anrueysm
vascular malformation on CT
Term
tx subarachnoid hemorrhage 2
Definition
surgucal ablation of aneurysm
other vascular malformation surgery
Term
signs traumatic intracranial hemorrhage 3
Definition
headache
htn
lateralized neurological signs
Term
labs traumatic intracranial hemorrhage 3
Definition
epidural, subdural, intracerebral hemorrhage on CT
Term
tx traumatic intracranial hemorrhage
Definition
surgical evacuation of epidral/subdural hematoma
Term
causes of AA sublexation 6
Definition
rheumatoid arthritis
down syndrome: absent transverse axis ligament
marfans: lax ligament
elhers danlos: lax ligament
malformation of odontoid
degenerative arthritis
Term
signs of AA sublexation 5
Definition
decreased motor skills
torticollis
gait disorder
progressive paralysis
pain: C spine, neck, occipital
Term
complications of AA sublexation 1
Definition
spinal canal stenosis
Term
stroke: highest rate location, who can have one
Definition
highest in south east US
anyone: risk differs among race and ethnicity
Term
where is stroke in cause of death statistics
Definition
under heart disease and cancer at #3
Term
how many neurological disease hospitalizations are due to stroke
Definition
>50%
Term
how many people have neurological deficits from stroke in us, how many strokes in us a year, how much does it cost
Definition
4 million with deficits
>700,000 a year
43.3 billion
Term
what percent of stroke is preventable
Definition
80%
Term
stroke: emergncy?, recovery length, statistic in cause of dissability
Definition
requires emergency tx
recovery is life time
leading cause of long term dissabiity
Term
non-modifiable risk factors of stroke 5
Definition
age: risk doubles with each decade
gender: higher in males
race: higher in AA, asian, hispanic
family hx
low birth weight
Term
modifable risk factors for stroke 14
Definition
smoking
drugs
oral contraceptives
post menopause therapy
obesity
physical inactivity
diabetes
elevated BP
elevated LDL
AFib
CHF
CAD
carotid stenosis
peripherial artery disease
Term
what is the percent of TIA that will have a stroke in 5y
Definition
1/3
Term
clinical signs of a stroke 11
Definition
sudden onset, gradual resolution
multiple body regions
facial droop
arm drift
sudden weakness/paralysis
numbness: face, arm, leg
speech: slurred, mute
vision: dim, loss (esp one eye)
headache: ipsilateral, non-throbbing, sudden severe
LOC
AMAUROSIS FUGAX
Term
amaurosis fugax: explain MOA, cause, defining characteristics, prognosis statistics
Definition
unilateral loss of vision developing over seconds and remaling 10-20 min

caused by emboli in renal arteru usually due to athlerosclerotic lesion in carotid bifurcation, mitral valve prolapse, or other cardiac source

often indicator of impending stroke (14% in 7y, 50% TIA)
Term
tx amaurosis fugax
Definition
aspirin
remove plaque surgically
Term
what are the three types of ischemic stroke
Definition
thrombosis 61%
embolism 24%
TIA
Term
ischmic thrombotic stroke: length of evolution, warning signs
Definition
symptoms evolve in minutes to hours
preceded by TIA in same region as thrombus so causes similar symptoms
Term
ischemic embolic stroke: locations 2, warning signs
Definition
often occludes middle cerebral artery
if posterior it is at apex of basilar

usualy have neurological deficits and signs varying between attacks because they are being thrown to different areas by cardiac source
Term
TIA: defining characterstiics, goals of evaluation
Definition
symptoms and recovery under an hour
eveluation is aimed at finding cause and preventing reoccurrance
Term
categories of causes of ischemic stroke 2
Definition
vessel occlusion
cardiac events and diseases
Term
vessel occlusions that cause ischemic stroke 5
Definition
large artery athlerosclerosis: extra or intracranial
small artery occlusion
cardioembolism
hematologic disorder/hypercoaguable state
non-athlerosclerotic vasculoplastics: inflammatory and non
Term
major cardiac diseases at risk for stroke 8
Definition
AFib
mitral stenosis
mechanical heart valves
recent MI
atrial myxoma
infective endocarditis
dilated cardiomyopathy
marantic endocarditis
Term
minor cardiac diseases at risk for stroke 5
Definition
mitral valve prolpase
mitral annular calcification
PFO
atrial septal aneurysm
calcified aortic stenosis
Term
symptoms of stroke if in carotid circulation 4
Definition
pain in trigeminal distribution

IPSILATERAL MONOOCULAR graying, clouding, burning, loss of vision

CONTRALATERAL weakness, clumsiness, numbness

language or articulatory disturbances

visual and neurological symptoms dont normally occur together
Term
symptoms of a stroke if in vertebrobasilar circulation 6
Definition
pain in occipital area

DOUBLE VISION, BINOCULAR graying, clouding, burning, loss of vision

vertigo

UNILATERAL or bilateral weakness, clumsiness, numbness in limbs

articulatory or swallowing disturbances

lack of coordination or staggering while walking
Term
steps of examinatioon of stroke 6
Definition
vitals: HTN and arrhythmia check

BP: check for arterial disease, stenosis, occlusion (ESP SUBCLAVIAN)

pulse in neck and temple: extracranial carotid occlusion or stenosis

ascultate subclavian, neck, orbit, skull

neurological exam: usually normal, can help localize
Term
diagnostic studies for stroke 7
Definition
CT
MRI
CXR
ECG
CBC: differential, platelet, prothrombin, thromboplastin, ESR, CHEM, fasting glucose
TEE/TTE
stress ECG
Term
when should you hospitalize a possible stroke pt
Definition
recent <48h
prolonged or crescendo events
suspected high grade carotid artery disease
posterior circulation TIA
Term
post-emergency stroke management
Definition
IV heparin or aspirin if recurrent or recent (aspirin has immediate platelet effect and is alternate)

corticosteroids and dehydrating agents for cerebral edema
Term
what percent of stroke pt are independent by 6mo
Definition
60%
Term
why can't you always just give TIA
Definition
could hause hemorrhage
Term
signs of hemorrhagic stroke 5
Definition
severe headache
depression of conciousness
neurological deficits that dont correlate to specific vessel
NAUSEA, VOMITING
Term
causes of hemorrhagic stroke, which is #1 (12)
Definition
#1 HTN
amyloid angiopathy
anti-coagulants
tPA
post-infarction
delayed post trauma
endocarditis
coagulopathy
AVM/aneurysm
tumor
vasculopathy/vasculitis
post-thrombotic
Term
where are the main sites of damage from HTN caused hemorrhage 6, and their prevelance
Definition
putamen 50%
thalamus 15%
lobar 15%
cerebellum 10%
pons 10%
Term
if BP is controlled, what is the rate reoccurrance of a hemorrhagic HTN stroke
Definition
2%
Term
where does amyloid angiopathy hemorrhae usually occur 3
Definition
lobal
multiple bilateral
parieto occipital
Term
causes of amyloid angiopathy hemorrhage 3
Definition
dementia, alzheimers, >70yo
Term
warfarin caused hemorrhage: method, statistic, risk reoccurrance
Definition
causes DVT, PE, AF
doubles mortality from hemorrhage
5-15% of hemorrhage cases
risk reoccurrance 10x
Term
how much does tPA increase the rate of hemorrhage, where
Definition
6%, 18% at different site than stroke
Term
risk factors for tPA hemorrhage 4
Definition
>70yo
glucose >300
NIHSS>20
early ischemic changes on CT
Term
what are the 6 outcome predicotrs for hemorrhagic stroke
Definition
hematoma volume and expansion
intraventricular extension
deep ICH location
GCS
age
cerebral edema: midline shift, herniation
Term
what is the risk of mortality for 0-20cm, 30-60cm, >60cm expansion of hemorrhage
Definition
0-20: 19%
39-60: 30-55%
>60: 90%
Term
what is the statistic for how many people have hemorrhage expansion in 1h, 24h, major expansion in 24h
Definition
1h 26%
>33% in 24h 38%
expansion in 24h at all 72%
Term
how is a hemorrhage diagnosed 2
Definition
CT without contrast: shows hematoma in parenchyma
MRI: shows intraparenchymal blood
Term
supportive care for hemorrhage 6
Definition
ABCs
BP management systolic <140
cerebral edema reduction
surgery to evacuate clot
fever management
DVT prophylaxis
anti-convulsants- NO ROLE
Term
why do you want to avoid agressive reduction of BP in hemorrhage
Definition
could compormise flow to brain
Term
signs of subarachnoid hemorrhage 8
Definition
headache: worst of life
non-focal neuro deficits
vomiting
stiff neck
fever
confusion or stupor
coma
oculomotor nerve palsy due to compression of CN III
Term
cause of subarachnoid hemorrhage 7
Definition
trauma
AVM/aneurysm
arteritis
drug abuse
coarctation of aorta
family hx pregnancy
Term
diagnosis of subarachnoid hemorrhage 4
Definition
CT: confirms, hydrocephalus check
MRI: detects smaller bleeds
LP: if CT/MRI not helpful evaluate opening pressure, RBC, xanthochromic
EEG: Deep T waves, short PR, takk U
Term
tx subarachnoid hemorrhage 7
Definition
bed rest
elevated head
mild sedation
analgesics for headache
NO antiplatelet drugs
reduce BP to 160/100
surgical tx of ruptured vessels as needed
Term
trigeminal neuralgia aka
Definition
tic doloreux
Term
cause of trigeminal neuralgia with decreased facial sensation 5
Definition
intracranial aneurysm
giant cell arteritis
intracranial tumors
dental mandibular malignancy
cranial malignancy
Term
cause of trigeminal neurlagia with normal facial sensation 3
Definition
idiopathic
MS
dental pathology
Term
trigeminal neuralgia: duration, reoccurrance, time of day, between reoccurrance
Definition
2sec - 2 min
jab or clusters
for a few weeks them remits
asymptomatic between attacks
day or night
Term
trigeminal neuralgia symptoms
Definition
intense pain in lips gums, cheek, chin
sudden, intense, sharp, superificial, burning, severe

NO NEUROLOGICAL DEFICITS
Term
what part of the trigeminal nerve is trigeminal neuralgia usually in
Definition
maxillary division
Term
what can percipitate a trigeminal neuralgia attack
Definition
spontaneous
motion of mouth
trigger zones: face lips, tongue respond to tactile stimuli
eating, talking, washing fact, cleaning teeth
Term
what is the pathology behind trigeminal neuralgia
Definition
compression where CN 5 enters brainstem causes demyelination of non-pain fibers that become hyperexcited and stimulate poorly/un myelinated pain fibers near by

superior cerebellar artery or tortous vein compresses due to age related brain sagging and increased vascular thickness and tortousity
Term
DDx trigeminal neuralgia 11
Definition
disease/neoplasm of jaw, teeth, sinuses

vascular malformation of brainstem

post-herpatic pan: antecedent rash, scaring (usually when opthalmic division)

sjogerns syndrome and RA: sensory deficits

migraine/cluster headache: associated with neuraliga (cluster tic), more prolonged

MS: BILATERAL due to demyelination of CH5 at nerve root at pons, will have SENSORY LOSS

aneurysm, acoustic schwannoma, meningioma: sensory loss

temporal arteritis: PAIN ISNT SHOCK LIKE, WILL HAVE ELEVATED ESR
Term
labs done for diagnosis of trigeminal neuralgia 2, why
Definition
ESR: RO temporal arteritis
MRI: RO MS
Term
tx trigeminal neuralgia
Definition
carbamazepime 1 mo
oxycarbamazepime
surgical microvascular decompression
gamma knife radiosurgery
radiofrequence theraml rhizotomy
Term
when do you use EEG to diagnose headache
Definition
altered conciousness
encephalopathy
focal neurological signs
atypical auras
Term
when do you use CT/MRI to diagnose headache
Definition
recent change in headache pattern
new onset of seizures
focal neurological signs
Term
what can MRA and MRV helps us diagnose 8
Definition
cerebelvascular: arterial dissection (MRA), cerebral venous sinus thrombosis (MRV), CNS vasculitis

herpes encephalitis

trauma: posterior fossa, pituitary, leptomeninges

high and low ICP syndromes
Term
what do you always have to make sure before a LP
Definition
cranial imaging is normal
Term
when should you do an LP for headache 7
Definition
thunderclap headache

subacute progressive headache

headache associated with fever, meningisums, confusion, seizure

high or low ICP
Term
when a headache is exercised induced think
Definition
saggital sinus thrombosis
Term
when a headache causes change in vision think 5
Definition
temporal arteritis
retroorbital aneurysm
mass lesion
glaucoma
pseudotumor cerebri
Term
when an headache includes increased temp think 3
Definition
meningitis
encephalitis
sepsis
Term
when a headache includes high BP think 4
Definition
malignant HTN
pheochromocytoma
intrancranial mass lesion (cushing response)
sepsis
Term
when a leadache includes low BP think
Definition
low pressure headache
Term
when a headache includes high pulse think 2
Definition
arrhythmia
MI
Term
when a headache is in temporal region think
Definition
temporal arteritis
Term
when the headache is associated with trauma behind TM think
Definition
CSF leak
Term
when headache includes horner syndrome think
Definition
carotid dissection
Term
when a headache includes brainstem signs think
Definition
basilar migraine
Term
when a headache includes focal neurological signs think
Definition
hemiplegic migraine
Term
general signs of a migraine 13
Definition
unilateral
pulsatile
nausea
vomiting
photophobia
phonophobia
lassitude
prodrome mood, appetite, cognition. GI, fatigue
>2g but <1d
Term
what are the two types of not-complicated migraine
Definition
with aura - classic
without aura - common
Term
what are visual auras that could precede a classic migraine 3
Definition
hemianopic field deficits
scotomas (blind spots)
scintillations (flickering)
Term
migraine without aura: length if untreated, signs 5
Definition
4-72h untreated
occasionally terminated by vomiting
usually bilateral and periorbital
throbbing
cervical muscle contraction
scalp tenderness
Term
things that can percipitate a migraine 6
Definition
foods: tyramine (cheese, meat, nitrate, chocolate, MSG)
fasting
emotion
menses
drugs: OC, nitro
bright light
Term
tx of migraine 3
Definition
ergots: cause vasoconstriction
amyl nitrate: cause vasodilation
pressing ipsilateral carotid or superificial temporal artery may reduce severity
Term
types of complicated migraine 4
Definition
basilar
hemiplegic
opthalmoplegic
migraine equlivanents
Term
basilar migraine: who, symptoms 7
Definition
young women

bilateral visual
migranous march then spontaneous resolution
dysarthria
vertigo
ataxia
limb parasthesia
even tetraparesis
LOC an ensue or precede
Term
hemiplegic migraine: cause 2, signs 2
Definition
familial: dominant
idiopathic

aura: unilateral paralysis, persists for days affter headache
stroke like, can often cause stroke
Term
signs of opthalamoplegic migraine
Definition
extraocular nerve palsies: usually 3rd, sometimes 4th
due to dilation of internal carotid stretching CN3 or CN6 in cavernous sinus

dysphagia
memory disturbance
vertigo
hemisensory disturbance
focal neurological disrutbance without headache
Term
signs of migraine equivalents
Definition
migraine without headache (esp >50yo)
lasts 15-20 min
visual disturbance
hemiparesis
hemisensory loss
dysarthria
aphasia
Term
cluster headache: who gets it, ehy
Definition
men>women
20-30yo
genetic predisposition
serum histamine raises dring atack
Term
cluster headache signs
Definition
severe unilateral orbital, suborbital, temporal pain
15-180 min
seperated by weeks or months
often wake from sleep
conjunctival infection
lacrimation
congestion
rhinorrhea
swelling and eyelid edema
miosis ptosis
Term
cluster headache percipitation 2
Definition
alcohol
vasodilators
Term
treatment of cluster headache
Definition
antihistammine: not awesome
ergot methysergide: prophylaxis
lithium: useful
prednisone: in refractory cases
Term
tension headache: who, signs
Definition
20yo woman

chronic recurrant headache with unapparent cause
contraction of neck and scalp muscles
non-throbbing
bilateral occipital
no nausea, vomiting, prodrome
Term
tx tension headache
Definition
migraine meds
aspirin
nsaid
tylanol
ergot
dihydroergotamine

prophylaxis: amitriptyline, imipramine, propranolol (selective SSRI not useful)

psychotherapy: relaxation, PT
Term
temporal arteritis aka
Definition
giant cell arteritis
Term
who gets it 2
Definition
women 2x > mne
>50yo
Term
definition of temporal arteritis, location
Definition
systemic vasculitis in medium and large erteries (esp external carotid)
Term
2 pathological findings of temporal arteritis
Definition
subacute granulomatous inflammation: lymphocytes, neutrophils, giant cells
inflammatory of vessl wall
Term
signs of temporal arteritis 9
Definition
headache: inflammation of artery, severe throbbing

ischemia: arterial stenosis

malaise
weight loss
arthralgia
fever

scalp tenderness: laying down, brushing hair

jaw claudication: pain when clenching due to ischemia of muscles of mastication

visual symptoms
Term
disgnosis of temporal arteritis 5
Definition
ESR elevatiom
thrombocytosis
elevated CRP
ALK-P
biopsy of artery: thick, non-pulsatile, dilated, tender
Term
tx temporal arteritis
Definition
prednisone
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