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35 Cards in this Set
- Front
- Back
FAST recognition of stroke
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F-face - are both sides equal? is smile equal?
A-arms - can the client raise both arms equally? S-speech - is speech slurred? can the client make a sentence? T-time - get help now. there is a small window of opportunity |
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Affects of a left CVA
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paralyzed right side hemiplegia
impaired speech & language slow performance visual field deficits aware of deficits - depression & anxiety impaired comprehension |
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Affects of a right CVA
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paralyzed left side hemiplegia
spacial-perceptual deficits tends to minimize problems short attention span visual field deficits impaired judgment impulsive impaired time concept |
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2 classifications of stroke
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ischemia
hemorrhagic |
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which occurs more commonly - ischemic or hemorrhagic stroke?
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ischemic - 80-85%
hemorrhagic only 10-15% |
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results from obstruction of blood vessels & decreased brain perfusion
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ischemic stroke
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disruption of blood flow to the brain which results in ischemia
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"brain attack"
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causes of ischemic strokes
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thrombus
embolus |
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which type of stroke accounts for the highest mortality
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hemorrhagic stroke
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2 causes of hemorrhagic stroke
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subarachnoid hemorrhage
intracerebral hemorrhage (more common) |
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important components of algorithm for stroke pts
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similar to that of heart attack but:
O2 given only if needed check glucose level (hypoglycemia mimics stroke) perform neurologic assessment order CT |
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if CT scan shows a hemorrhage what is the plan of tx?
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consult neurosurgeon/transfer
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if CT scan does not show hemorrhage what is the plan of tx?
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probably acute ischemic stroke so consider fibrolytic therapy
if not a candidate, admin aspirin if a candidate, give tPA |
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what is the single most important point in the patient's history according to guidelines for early mgmt of ischemic stroke
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time of symptom onset
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diagnostic studies for early mgmt of ischemic stroke
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CT or MRI
blood glucose electrolytes/renal function tests ECG cardiac markers CBC PT/INR/PTT O2 saturation also may consider: toxicology screen, pregnancy test, ABGs, chest xray |
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treatment of choice for thrombolysis in acute stroke is for early mgmt of ischemic stroke
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rtPA
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when can aspirin therapy of 325 mg be initiated for early mgmt of ischemic stroke
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24-48 hrs after stroke onset (decr risk of intracranial hemorrhage)
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standardized measures for stroke care at stroke centers include
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tPA consideration
Screening for dysphagia DVT prophylaxis Lipid profile smoking cessation education about stroke plan for rehab antithrombotic meds w/in 48 hrs |
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what is the window of opportunity to use tPA to improve recovery of stroke?
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3 hrs
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treatment for TIAs include
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90 day risk for acute stroke is 10% most w/in 2 days
ASA 325 mg loading dose then 81 mg daily plavix for 30 days |
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3 most important acute neurological complications of stroke are:
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swelling of ischemic tissue
hemorrhagic transformation of the infarct seizures |
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what is the leading cause of death after a major ischemic stroke
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cerebral edema
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post discharge complications from stroke include:
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falls
pneumonia (most frequent cause) respiratory illness MI recurrent stroke |
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most important risk w/intracerebral hemorrhage
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hypertension
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which is the most serious form of stroke - 35-52% mortality at 1 month w/half dying in first 48 hrs
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intracerebral hemorrhage
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clinical manifestations of intracerebral hemorrhage
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sudden onset
headache elevated BP (200-250/100-150) decreased LOC N/V |
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medical mgmt of intracerebral hemorrhage
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control hypertension
vasodilators - Nitroprusside maintain ICP <20 mmHg maintain fluid/electrolyte balance prophylactic seizure prevention cooling blanket/tylenol for fevere sedation (propofol) if agitated glucose controle DVT prevention rehab asap |
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best way to prevent stroke
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control BP
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causes of subarachnoid hemorrhage
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rupture of cerebral aneurysm (85%)
arterial-venous malformation |
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clinical manifestations of subarachnoid hemorrhage
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abrupt onset w/worst headache imaginable
brief loss of consciousness N/V |
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collaborative mgmt for stroke
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differentiate cause of stroke (ischemic, subarachnoid, aneurysm, intracerebral bleed)
implement tx based on bleed protect airway frequent neuro assessments assess for complications provide comfort & emotional support design rehab program educate pt & family |
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treatment for ischemic stroke
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thrombolytic therapy
BP control |
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tx for subarachnoid hemorrhage
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surgical aneurysm clipping or AVM excision
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tx for intracerebral bleed
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BP control
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complications to assess for w/stroke
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cerebral edema
cerebral ischemia rebleeding impaired swallowing neurologic deficits |