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CMS 2 - Neuro Test 2
Nova Orlando
233
Health Care
Graduate
02/02/2011

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Term
typically acute onset, responds to at least some stimuli appropriately, level of consciousness may be impaired. Appear sleepy, disoriented, and inattentive.
Definition
delirium
Term
chronic in onset with worsening over time. Appear normal but confused. Normal level of consciouness
Definition
dementia
Term
Generalized memory loss
Definition
amnesia
Term
inability to learn new material
Definition
acutely confused
Term
problems with recent memory
Definition
demented
Term
Flostein MMSE score less than what required additional testing?
Definition
24
Term
disorder of articulation in which basic language is intact
Definition
dysarthria
Term
impaired production and or comprehension of spoken language
Definition
aphasia
Term
"receptive" aphasia, pt doesn't understand what is said or written.
Definition
Wernicke's
Term
"expressive" aphasia. patients understands what he hears but produces few words with many pauses.
Definition
Broca's
Term
pt is unaware their responses are nonsense
Definition
Wernicke's
Term
incorporates elements of both receptive and expressive aphasia
Definition
global aphasia, middle cerebral artery
Term
center for language use
Definition
Wernicke's area, posterior temporal region
Term
can't remember emotionally charged events but can remember objective facts and events
Definition
psychogenic amnesia
Term
can't remember objective facts
Definition
organic amnesia
Term
loss of memory for events immediately prior to the disorder
Definition
retrograde amnesia
Term
what lobe of teh brain does drawing a clock or intersecting geometric shapes test?
Definition
parietal lobe
Term
historical red flags
Definition
progressively declining LOC/neuro exam, pupillary assymetry, seizures, repeated vomiting, double vision, worsening headache, can't recognize people or places (disorientation), behaves unusually or seems confused or irritable, slurred speech, unsteady on feet, weakness or numbness in arms or legs.
Term
presents with nystagmus, dysarthria, limb and gait ataxia
Definition
alcohol intoxication
Term
presents initially with tremulousness, tachycardia, hypertension
Definition
alcohol withdrawal
Term
tx for alcohol withdrawal
Definition
initial - benzos (diazepam 5-20mg q 4hrs PRN)
day 2 = seizures --> continue benzos
day 3-5 = DT's (agitation, tremulousness, hallucinations, cardiovascular collapse) --> diazepam (10-20 mg IV q 5 min until calm), correct fluids, electrolytes, glucose abnormalities, BB (atenolol 50-100mg PO qd to block adrenergic response)
Term
acutely confused endocrine disorders and treatment
Definition
hypothyroid - levothyroxine
hyperthyroid - antithyroid drugs, BB
hypoglycemia - IV dextrose
hyperglycemia:
DKA - insuline, K+, IVF
HONK - insulin, IVF
Term
acutely confused - elecotrolyte disorders and treatment
Definition
hyponatremia - water restriction and IV hypertonic saline, slowly raise serum Na level to 125-130
hypocalcemia - IV calcium gluconate and seizure precautions
Term
differentiate heat exhaustion and heat stroke
Definition
heat stoke has CNS involvement (ataxia, coma, confusion, irritability, seizures)
Term
caused by thiamine deficiency in chronic alcoholics. Presents with ophthalmoplegia/nystagmus, gait ataxia
Definition
Wernicke's Encephalopathy
Term
Treatment for Wernicke's Encephalopathy
Definition
thiamine replacement (100mg) followed by D50. Ataxia might not be fully reversible. Deficits in learning and memory may follow.
Term
Vitmain B12 deficiency
Definition
usually due to poor intake, presents with mild confusion to dementia to psychosis
Term
accumulation of ammonia in liver failure, presents with asterixis.
Definition
Hepatic Encephalopathy
Term
treatment for Hepatic Encephalopathy
Definition
requires lactulose, correct coagulopathy
Term
treatment for uremia (elevated BUN)
Definition
dialysis and renal transplant
Term
classic triad: Fever, nuchal rigidity, mental status change
Definition
Meningitis
Term
CSF = cloudy, high protein, high lactate, low glucose, many WBCs
Definition
Bacterial Meningitis
Term
causes of bacterial meningitis
Definition
strep. pneumoniae, Nesseria meningitidis
Term
Most common cause of meningitis
Definition
viral (enterovirus, HSV, varicella zoster, mumps, HIV)
Term
CSF = low WBC count with lymphocytes not neutrophils, normal protein and glucose
Definition
Viral Meningitis
Term
treatment for meningitis
Definition
Abx ASAP if bacterial is suspected.
IV NS or LR.
Control fever with Tylenol
If viral is suspected give acyclovir 12.5mg/kg/d divided tid x 10 days.
consider steroids (Decadron 0.4mg/kg q 12 hours for 4 doses) with first dose prior to starting antibiotics to reduce inflammation.
Term
MCC of encephalitis
Definition
viral (enterovirus, HSX, VZV, arboviruses)
Term
Herpangina (hand, foot, mouth disease), enterovirus 71 --> rhombencephalitis, mild sxs except enterovirus 71
Definition
encephalitis
Term
MCC of fatal encephalitis in the US
Definition
HSV, VZV
Term
treatment for herpes encephalitis
Definition
antiviral treatment ASAP with acyclovir IV x 14-21 days
Term
transmitted by birds and mosquitos
Definition
West Nile Virus Encephalitis
Term
treatment of West Nile Virus encephalitis
Definition
supportive
Term
presents with encephalitis or paralysis, invariably fatal unless treatment is administered before sxs arise
Definition
Rabies
Term
LP = increased ICP, obstructive hydrocephalus, mass effect. CSF = protein normal-slightly elevated, lymphocytes present, glucose normal.
MRI most likely to show abnormality
Definition
encephalitis
Term
infection with Plasmodium species
Definition
cerebral malaria
Term
CSF = increased pressure, slightly elevated protein, monocytes
Definition
Cerebral Malaria
Term
treatment for hypertensive encephalopathy
Definition
get BP down with nitroprusside or labetalol
Term
no loss of consciousness, transient confusion <15 minutes
Definition
Grade 1 concussion, can return to play if cleared.
Term
no loss of consciousness, transient confusion >15 minutes
Definition
Grade 2 concussion, need head CT/MRI and neuro work up if sxs persist. May return to activities in 1 week if no sxs.
Term
concussion with any loss of consciousness
Definition
Grade 3, needs emergent CT/MRI and thorough neuro exam. Must stay out of competition for 1-2 weeks.
Term
what type of bleed is a subdural hematoma?
Definition
venous, lower pressure, will clot off faster. can cause irritation of the cerebrume which may lead to seizures.
Term
concussion with sxs persisting for > 1 year
Definition
post concussive syndrome.
Term
risk factors for delirium
Definition
advanced age, preexisting cognitive deficit, prior episode of delirium, polypharmacy, alcohol or other drug dependence, use of psychoactive drugs, deficits in vision or hearing, perioperative complications, immobility, severe comorbidity
Term
causes of delirium
Definition
drug induced, depression, hypothyroidism, hyperthyroidism, hypoglycemia, Vit B12/folate deficiency, subdural hematoma, liver failure, nromal pressure hydrocephalus, stroke, CNS infections, cerebral neoplasms, renal failure, ehtanol abuse, hypoxia, hypercalcemia, vasculitis, cadiopulmonary disorders, severe anemia
Term
progressive decline in cognitive function beyond what might be expected from normal aging, severe enough to interfere significantly with work or usual social acitivities or relationships with others.
Definition
dementia
Term
3 microscopic changes indicative of Alzheimer's disease
Definition
B-amyloid plaques, neurofibrillary tangles, cortical atrophy
Term
what disease is associated with the genetic transmission of apolipoprotein E4?
Definition
Alzhemier's
Term
gradual development of forgetfulness, speech halting, mobility, behavior, temperament, and conduct begin to decline
Definition
Alzheimer's
Term
grasping and sucking reflexes
Definition
Alzheimer's
Term
tx for mild-moderate Alzheimer's
Definition
Donepezil and galantamine (reversible ACh inhibitors)
SE: elevated LFT, N/V/D, dizziness.
also consider antipsychotics, antidepressants, anxiolytics.
Term
treatment for moderate to severe dementia
Definition
memantine
Term
CAM for Alzheimer's
Definition
Vitamin E, Gingko Biloba
Term
Alzheimer's with Parkinsonian features
Definition
Dementia with Lewy Bodies
Term
what medications should be avoided in Dementia with Lewy Bodies?
Definition
antipsychotics
Term
episodic confusion, hallucinations, and paranoid delusions...
Definition
Lewy Body Dementia
Term
step wise progresson until one event tips the patient over the edge
Definition
Vascular (multi-infarct) Dementia
Term
risk factors for Vascular Dementia
Definition
hypertension, cardiac disease, diabetes, smoking, alcoholism, hyperlipidemia, male gender, African American ethnicity
Term
small subcortical luciencies (Lacunar Infarcts)
Definition
Vascular Dementia
Term
small subcortical luciencies (Lacunar Infarcts)
Definition
Vascular Dementia
Term
treatment of Vascular Dementia
Definition
Manange HTN and CVD risk factors.
CCB, anti-platelet meds, regular exercise, healthy diet, cholinesterase inhibitors (donepizil), glutamate receptor agonsits (memantine)
Term
key factors for depression
Definition
pt is aware of deficits, complains of memory loss, prominant vegitative symptoms, not worse at night, normal neuro exam, normal labs
Term
rhythmic oscillatory movement characterized by its relationship to voluntary motor activity. Enhanced by emotional stress and disappears during sleep.
Definition
Tremor
Term
rapid irregular muscle jerks that occur involuntarily and unpredictably with normal strength.
Definition
chorea
Term
difficulty manintan muscular contraction for strength testing - hand grip may relax intermittently
Definition
milkmaid grasp
Term
unilateral chorea that is especially violent with sudden, wild, flail like movements involving proximal muscle groups.
Definition
Hemibalismus
Term
sustained muscle contractions, frequently causing twisting and reptitive movements or abnormal postures - not present during sleep, enhanced by voluntary activity
Definition
Dystonia
Term
treatment for dystonia
Definition
anticholinergics, dopamine
Term
difficulty or slowness in performing voluntary movements. May develop after long term treatment with antipsychotics (dopamine receptor blockers) or metaclopramide
Definition
Tardive Dyskinesia
Term
sudden, rapid, twitch like muscle contractions.
Definition
Myoclonus
Term
treatment for myoclonus
Definition
anticonvulsants (valproic acid)
benzodiazepine (clonazepam)
Term
sudden, recurrent, quick, coordinated movements. Typical of Tourette's
Definition
Tics
Term
abnormal movement present since infancy is probably due to
Definition
cerebral palsy or kernicterus
Term
abnormal movement developed in childhood, most likely due to
Definition
tics
Term
abnormal movement developed in early adulthood, most likely due to
Definition
benign essential tremor, Huntington's disease
Term
abnormal movement developed in elderly years, most likely due to
Definition
Parkinson's disease
Term
drugs that report "Tardive Dyskinesia" or "Extapyramidal Symptoms"
Definition
Reglan, Phenergan, Haldol
Term
hx of Rheumatic Fever may be indicative of?
Definition
Syndenham's Chorea
Term
treament of a benign/essential tremor
Definition
propranalol 40mg po BID
Term
sudden onset of sustained muscle contractions, frequently causing twisting, repetitive movements or abnormal postures
Definition
acute dystonia
Term
drugs associated with acute dystonic reactions
Definition
antipsychotic/neuroleptic drugs, phenothiazine anti-emetics, cocaine, "street valium" (Haldol), tricyclic antidepressants, lithium, phenytoin, carbemazepine, anticonvulsants
Term
abnormal movements associated with the treatment of schizophrenia
Definition
acute dystonia early, followed by Parkinson like effects weeks later, and Tardive Dyskinesia's have a late onset.
Term
treatment of acute dystonia
Definition
d/c offending drug, administer anticholinergic drug (diphenhydramine 50-100mg IV over 2 minutes).
sxs should resolve in 15-30 minutes, can repeat dose in 15-30 mins if sxs persist.
If sxs persist longer than 2 doses consider non-drug induced dystonia
Term
resting tremor, cogwheel rigidity, akinesia/bradykinesia, progressive neurologic disorder.
Definition
Parkinson's
Term
damage to substantia nigra with cell loss in basal ganglia --> disorder in the balance of GABA and ACh
Definition
Parkinson's Disease
Term
Pneumonic for symptoms of Parkinson's
Definition
T - tremor (resting)
R - Rigidity
A - Akinesia/Badykinesia
P - Postural Instability
Term
treatment of Parkinson's
Definition
Dopamine replacement - carbidopa, levodopa
Anticholinergics - benzotropine
Amantadine: augments dopaminergic activity
Neuroprotection: Selegeline (MAOI), Coenzyme Q10
Term
non pharmacologic treatment of Parkinson's
Definition
surgery, deep brain stimulation, physical therapy, speech therapy
Term
genetic mutation causes premature cell death, resulting in atrophy in cerebral cortex and caudate.
Definition
Huntington's Disease
Term
Concentrations of GABA and ACh in basal ganglia are reduced, with increased levels of dopamine
Definition
Huntington's Disease
Term
appears 2-3 months after rheumatic fever or Group A beta-hemalytic strep. Usually subsides in 4-6 months
Definition
Sydenham's Chorea
Term
abnormal choreiform movements mistaken for fidgitiness, irritability, disobedience, obsessive compulsive symptoms, emotional lability
Definition
Sydenham's Chorea
Term
treatment of Sydenham's Chorea
Definition
IM PCN or oral PEN until age 20
Term
treatment of Huntington's Disease
Definition
haldol, reserpine, SSRIs
Term
neurologic movement disorder that is often associated with sleep complaints
Definition
Restless Leg Syndrome
Term
Secondary causes of RLS
Definition
iron deficiency, neurologic lesions, pregnancy, uremia
Term
diagnostic criteria for RLS
Definition
irresistable urge to move legs +/- uncomfortable sensations, urge to move is worse during periods of inactivity, urge to move is relieved by movement, urge to move is worse during evening or night.
Term
RLS treatment
Definition
non pharmacologic - stretching, mental alerting activities, avoid aggravating factors.
Dopaminergic agents (pramipexole), gabapentin, benzodiazpepines, opiods
Term
episode of altered consciousness characterized by excessive or over synchronized discharges of cerebral neurons
Definition
seizure
Term
brief symptoms that may precede the onset of some seizures
Definition
aura
Term
group of disorders characterized by recurrent seizures
Definition
Epilepsy
Term
LOC due to decreased blood supply to the cerebral hemisphere or brainstem
Definition
syncope
Term
syncope in upright or sitting position suggests
Definition
orthostatic hypotension or simple faint
Term
syncope in lying position suggests
Definition
cardiac event or seizure
Term
syncope during exercise suggests
Definition
cardiovascular etiology
Term
prolonged postictal state
Definition
status epilepticus
Term
seizures from systemic disorders
Definition
hyperosmolar states: HONK, hypernatremia
hypocalcemia <9.2
uremia
hypoglycemia <30 or drop quickly
hyponatremia <120 or drop quickly
Term
epilepsy triggers
Definition
extreme stress, lack of sleep, watching flashing or strobe lights, low bood sugar, excessive intake of alcohol, certain medications, hormonal changes, illness
Term
MC trigger of epilepsy
Definition
not taking medication as prescribed
Term
most life threatening conditions having to do with seizures involve
Definition
hemorrhage, brain swelling, or mass effect
Term
indications for emergent non-contrast CT
Definition
few focal deficits, persistant AMS, fever, recent trauma, persistant HA, hx of CA, hx of anticoagulation, suspicion of AIDS, first time seizure in pt > 40
Term
indications for emergency CT in pt with epilepsy
Definition
all non-epileptic indications PLUS new seizure pattern or type, prolonged postictal confusion
Term
when is MRI indicated with seizures?
Definition
it is the preferred imaging method but takes longer, so it is indicated once the pt is stabilized
Term
why scan the brain of a seizure pt?
Definition
rule out CNS hemorrhage/infarct, mass lesions, AVM, aneurysms, abscess, subdural hematoma
Term
when do you perform a LP in a seizure pt?
Definition
if the CT comes back negative, looking for xanthochromia (yellowing of the CSF, occurs in 4hrs)
Term
causes of secondary epilepsy
Definition
head injury, hypoglycemia, ETOH intoxication, narcotic withdrawal, encephalitis, stroke, hypoxia, hyponatremia, hypocalcemia, neoplasms, fevers
Term
seizure with maintained consciousness
Definition
partial
Term
seizure with motor, sensory, psychic, or autonomic sxs without any LOC and lasts for < 1 min
Definition
simple partial
Term
begin as simple partial seizures but profess to altered consciousness
Definition
complex partial, medial temporal or inferior frontal lobes
Term
sudden, brief lapses of consciousness without a loss of postural control, lasting only a few seconds. "daydreaming"
Definition
Absence Seizures.
Tx = valproic acid 150mg TID
ethosuximide 250mg BID
check serum levels periodically
Term
LOC with or without preceding aura. extension of body (30 secs) and alternating muscle contraction and relaxation (30-60 secs), tongue biting
Definition
generalized tonic-clonic seizures
Term
sudden shocklike contractions localized to a few muscles or a limb, tend to be brief
Definition
myoclonic
Term
sudden loss of muscle tone with loss of body posture (drop attacks)
Definition
atonic seizure
Term
slow single, or multiple sharp, repetitive, jerking movements of arms, legs, or torso
Definition
clonic seizure
Term
sudden increase in muscle tone of face, upper body; flexion of arms and extension of legs
Definition
tonic seizure
Term
tachycardia, elevated BP, hyperglycemia, elevatet temp, leukocytosis...how long did the seizure last?
Definition
less than 15 minutes
Term
hypotension, hypoglycemia, dysrhythmias, pulmonary edema....how long did the seizure last?
Definition
15-30 minutes
Term
hypotension with decreased cerebral blood flow, disruption of BBB leading to cerebral edema... how long did the seizure last?
Definition
longer than 1 hour
Term
treatment of tonic clonic seizures
Definition
recovery position, valproic acid (DOC), phenobarbital (60mg PO bid/tid), phenytoin (100mg PO tid), carbamazepine (200mg PO bid)
Term
partial seizure treatment
Definition
phenytoin 100mg PO tid, carbamazepine 200mg PO bid
Term
treatment of status epilepticus (prolonged seizure activity > 30 minutes)
Definition
airway patency (OPA), position pt to prevent aspiraton, IV, O2.
r/o hypothermia, hypoglycemia, meningitis, trauma, etc
Term
Rx for status epilepticus
Definition
thiamine 100mg IM, diazepam 0.1-0.2 mg/kg (max 20mg) or lorazepam 0.1 mg/kg IV (max 8mg).
seizures should be controlled in 30-40 minutes if not, intubate, move to secondary treatments while searching for etiology
Term
recurrent seizures already on drug therapy
Definition
if partial control is achieved with one med consider adding:
gabapentin, topiramate, oxcarbazepine, zonisamide
Term
what should you monitor in all seizure pts on drug therapy?
Definition
CBC and LFT at 2 weeks, 1 month, 3 months, 6 months, and every 6 months
Term
occur in a child with a fever >102, typically benign and last < 5 minutes
Definition
febrile seizures.
tx = reassurance
Term
irresitable sleep attacks and episodic muscular atonia
Definition
narcolepsy
Term
treatment for narcolepsy
Definition
nap therapy, CNS stimulants: methylphenidate, d-amphetamine
Term
unarousable unresponsiveness
Definition
coma
Term
half way between alertness and coma
Definition
stupor
Term
usually due to an expanding lesion in the temporal lobe or lateral middle fossa cuasing compression of the 3rd nerve --> ipsilateral fixed, dilated pupil
Definition
uncal transtentorial herniation
Term
waxing and waning hyperpnea with brief episodes of apnea
Definition
Cheynes-Stokes respirations
Term
which way do the eyes look in caloric testing?
Definition
toward the cold water
Term
should the Doll's Eye reflex be present in an alert person?
Definition
No, it should be supressed
Term
initial mangement of the pt with stupor/coma
Definition
ABC, intubate < 8, IV NS with 15g dextose, 100mg thiamine, 0.4-1.2mg naloxone
Term
irreversible loss of function of the brain including te brainstem, often from severe head injury or aneurysmal SAH
Definition
brain death
Term
cardinal features of brain death
Definition
coma/unresponsiveness - no response to painful stimuli
absence of brainstem reflexes - fixed pupils, oculocephalic, gag, grimacing
Apnea - no respiratory attempts even with PCO2 >60 mmHg
Term
medical record documentation of brain death
Definition
etiology and irreversiblity of condition, absence of brainstem reflexes, absence of motor response to pain, absence of respiration with PCO2>60mmHg, confirmatory testing (angriography, EEG, evoked potentials), repated neurologic examination (reasonable to have 2 positive apnea tests 6 hours apart)
Term
worst headache of my life, + kernig's
Definition
subarachnoid hemorrhage
Term
when is contrast needed with CT in SAH?
Definition
to detect AVM
Term
treatment of SAH
Definition
prevent elevated arterial BP(<140/100), prevent elevated ICP, IV fluids NS only if needed, analgesics PRN, AVOID ASA.
surgery - clipping or coil for rupture aneurysm, ligate/emobolize AVM
Term
prognosis of SAH
Definition
very high mortality rate
Term
thorbbing, bilateral, occipital, nuchal pain, worse with sitting upright
Definition
meningitis
Term
HA worse in AM, worse with exertion or valsalva, associated with N/V
Definition
tumor
Term
new onset HA later in life should raise suspicion for....
Definition
tumor
Term
what should you avoid if you suspect a bran tumor?
Definition
LP
Term
inflammation of carotid artery at the superficial temporal artery, MC after age 50. pain over scalp at temporal artery
Definition
temporal arteritis (giant cell arteritis)
Term
treatment of giant cell arteritis
Definition
urgent prednisone to avoid vision loss, burst with taper over several months.
Term
Pseudotumor Cerebri
Definition
often idiopathic, can be caused by certain drugs (TCN), during corticosteroid withdrawal, and as sign of venous sinus thrombosis
Term
diffuse generalized HA made worse with straining, transient visual disturbances, papilledema, CN 6 palsy
Definition
intracranial hypertension
tx = LP with drainage
consider acetazolamide, or lasix
Term
pain in dermatomal distribution, decreased pinprick sensation, deep gnawing pain with superimposed sharp elements exacerbated by contact
Definition
post-herpetic neuralgia
Term
treatment of post herpetic neuralgia
Definition
amitriptyline, gabapentin, lidocaine, capsaicin cream.
prevention = treat shingles with acyclovir at time of outbreak.
Sxs usually resolve in 6-12 months but can persist longer
Term
excrutating, lancinating pain, unilaterally over lower 2/3 of face
Definition
Tic Douloureux aka Trigeminal Neuralgia.
treatment = spontaneous recovery, also carbemazepine, phenytoin, baclofen
Term
pneumonic for sxs of migrain
Definition
P - pulsatile
O - onset 4-72 hours
U - unilateral in location
N - nausea/vomiting
D - disabling in intensity
can occur with/without an aura
Term
migraine treatment
Definition
simple analgesics (acetaminophen, NSAIDs, Midrin, Fioricet)
5-HT agonists - sumatriptan (contraindicated in CVD and pregnancy).
Ergots - contraindicated in CVD and pregnancy.
narcotics - Demerol (10mg IV) avoid if at all possible
consider anti-emetic: metoclopramide, prochlorperazine
Term
migraine prophylaxis
Definition
BB (propranalol), TCA (amitriptyline), Valproic Acid
Term
HA due to oversue of analgesics and/or caffeine
Definition
rebound HA
Tx - abrupt withdrawal of meds and caffeine containing sources. Consider sumatriptan or dihydroergotamine IV/IM during transition
Term
unilateral HA starts as burning sensation over lateral aspect of nose or prssure behind the eye. Brief, severe, constant, non throbbing attacks, last a few seconds to less than 2 hours
Definition
cluster HA
Term
treatment of cluster headaches
Definition
100% O2, sumatriptan (4-6mg SC), dihydroergotamine (1mg), prednisone may stop cluster attacks.
Prophylaxis - Verapamil, Triptans, DHE
Term
chronic HA of unapparent cause that lacks the features of migraine or cluster HA. Contraction of neck and scalp muscles is probably a secondary phenomenon.
Definition
tension HA
Term
frequent HA at least 15 days a month for more than 6 months, non throbbing, like a tight band around the head, typically bilateral forehead, temples or occiput
Definition
tension HA
Term
treatment of tension HA
Definition
simple analgesics, ergots, avoid reboudn HA.
Prophylaxis - TCA, SSRI, psychotherapy, lifestyle mods, reassurance
Term
non specific sxs that may follow a closed head injury. syndrome of HA, impaired concentration, and altered mood
Definition
post traumatic HA
Term
HA within 24 hrs of head injury, constant dull ache, worse with head movement, may worsen over several weeks with gradual improvement, N/V common, exam = non focal
Definition
post traumatic HA
Term
when is imaging not necessary with a HA
Definition
classical migraine and normal neuro exam, tension type HA with normal exam
Term
treatment of post traumatic HA
Definition
simple analgesics, amitriptyline, propranalol, ergot derivatives, encouragement
Term
syndrome of acute neurologic deficits that are the result of cerebral infarction
Definition
stroke
Term
death of CNS tissue due to infarction that results from disruption of the blood supply.
Definition
Ischemic (thrombotic or embolic)
Term
rupture of abnormal blood vessel(s) that results in local disrupted tissue structure and toxic effects of blood products that leads to cell death.
Definition
Hemorrhagic
Term
potentially reversible injury to brain tissue resulting from impaired perfusion
Definition
cerebral ischemia
Term
brief episode of neurological dysfunction caused by focal brain or retinal ischemia, with clinical symptoms typically lasting less than one hour, and without evidence of acute infarction.
Definition
TIA - warning sign of impending stroke.
Term
bleeding within the brain tissue
Definition
cerebral hemorrhage
Term
bleeding into the arachnoid space
Definition
subarachnoid hemorrhage
Term
causes a mass lesion
Definition
subdural/epidural hemorrhage
Term
focal ischemia produces a central zone of death, with surrounding damage that is potentially reversible.
Definition
stroke
Term
when does cerebral edem reach is max?
when does most death occur due to stroke?
Definition
5 days post infarct.
within one week due to cerebral edema.
Term
abrupt onset of deficits with gradual improvement suggests.....
Definition
embolic stroke
Term
abrupt onset of deficits with gradual progression to maximum deficit over minutes to hours suggests.....
Definition
thrombotic stroke
Term
onset of deficit during sleep or a stepwise progression usually suggests...
Definition
thrombus
Term
onset of deficit associated with severe headache or alteration in consciousness suggests....
Definition
intracerebellar bleed
Term
where do the atherosclerotic plaques form in an anterior cerebral infarction?
Definition
bifurcation of the carotid artery
Term
storke associated with greater weakness in the legs than arms
Definition
anterior cerebral
Term
stroke with greater weakness of the arms than the legs. Leg typically circumducted outward.
Definition
middle cerebral artery
Term
stroke:
dominant:aphasia, agraphia, acalculia, alexia
non dominant: neglext, apraxia, confusion
Definition
middle cerebral artery
Term
stroke:
dominant: language
non dominant: neglect, confusion
Definition
cartotid atery occlusion
Term
stroke associated with Weber Syndrome (midbrain, CN 3 palsy and contralateral hemiplegia)
Definition
Posterior Cerebral Artery Occlusion
Term
sxs: presyncope, syncope, neurologic deficits, blood pressure differentiation between the arms
Definition
subclavian steal syndrome
Term
arterial HTN is the major risk factor for....
Definition
small vessel disease (lacunar infarcts)
Term
three most predictive finding for acute stroke:
Definition
asymmetric facial weakness, arm drift/weakness, abnormal speech
Term
what should you always do in a young pt who has a stroke?
Definition
hypercoagulable workup
Term
appears dark on CT, may take up to 24 hours to show.....
Definition
ischemic stroke
Term
looks bright/white on CT
Definition
hemorrhagic stroke
Term
which test is better for detecting infarction of the brainstem and cerebellum? CT or MRI
Definition
MRI
Term
good screen for carotid artery aneurysm
Definition
cartoid doppler
Term
ultrasound used in the evaluation of suspected stenosis of the intracranial internal carotid artery, middle cerebral artery, or basilar artery
Definition
transcranial doppler
Term
may detect stenosis of large cerebral arteries, aneurysms, and other vascular lesions
Definition
MRA
Term
gold standard for the detection of AVM or SAH
Definition
angiography
Term
only approved treatment for stroke, what are the guidlines?
Definition
TPA, must be done within 3 hours of event, preferably within 60 minutes of arriving at the ED.
<10 minutes to Dr
<25 minutes to scan
<20 to read of scan
Term
how should pts who are not a candidate for TPA be treated?
Definition
with aspirin once a bleeding stroke has been ruled out
Term
contraindications to TPA
Definition
elevated BP that can't be controlled, bleed disorder with elevated PT/aPTT, decreased platelets, stroke or head trauma x 3 months, prior hx of intracranial hemorrhage, major surgery x 14 days, GI/GU bleeding x 21 days, MI in the prior 3 months, LP within the past 7 days, evidence of hemorrhage on head CT, sxs suggestive of SAH even if the CT is normal, pregnancy or lactation, active bleeding or acute trauma/fracture
Term
blood pressure control in ischemic stroke
Definition
should not be treated acutely unless the BP is greater than 220 and/or 120, then consider labetalol
Term
consider hospitalizatino for a pt with a TIA when.....
Definition
event occured in the past 24-48 hours, sxs that are worsening or last more than one hour, known cartid artery stenosis, afib, or hypercoagulable state.
Term
treatment of TIA
Definition
consider tPA, aspirin (325mg PO qd), ticlopidine (250mg PO bid), Clopidogrel (75mg PO qd), carotid endarterectomy, agnioplasty, stenting
Term
pneumonic for stroke risk x 30 days
Definition
A - age > 60
B - SBP > 140, DBP >90
C - clinical factors (unilateral weakness, speech disturbance without weakness)
D - Duration (sxs > 60 mins, sxs 1-59 minutes).
score <2 no risk. 4 = 8%. 6 = 31%
Term
prevention of stroke and TIA
Definition
aggressive control of HTN, and other cardiac risk factors. aspirin, anticoagulation
Term
statin therapy provides high levels of protection for all cause mortality and ischemic strokes. true or false?
Definition
true
Term
a fib increases the risk of ischemic stroke by how much?
Definition
500%
Term
bleeding sites of hemorrhagic stroke
Definition
deep cereral (putamen, thalamus), lobal (subcortical), pons, cerebella
Term
what is SAH usually due to?
Definition
ruptured cerebral artery aneurysm
Term
how does SAH appear on MRI?
Definition
center of an acute hemorrhage is brighter, with darker periphery which changes as the hematoma ages.
Term
what should you do if non contrast CT is negative?
Definition
perform an LP looking for xanthochromia (yellowing of the CSF in 4 hours)
Term
BP management in ICH
Definition
SBP betweeen 140 and 160, and monitor for signs of cerebral hypoperfusion induced by fall in BP.
Tx = nitroprusside, nicardapine, labetalol
Term
BP management in SAH:
Definition
keep SBP lower than 140.
Tx = labetalol
Term
when is a stroke pt not a surgical candidate?
Definition
Grade 5, coma, decerebrate posturing
Term
how can you prevent increased ICP?
Definition
elevate the head of the bed, consider sedation, consider mannitol, consider hyperventilation
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