Week Eight Modules Flashcards
stroke is the ___ leading cause of death
what are some common stroke warning signs/symptoms?
5th
sudden numbness or weakness of the face/arm/leg; sudden confusion & trouble speaking; trouble seeing or walking; and sudden severe headache with no known cause
what is BE FAST?
what you can identify in an individual if they are experiencing a stroke
B = balance E = eyes (blurry vision) F = face (drooping) A = arm (weakness) S = speech (difficulty speaking) T = terrible headache
what are some non-modifiable risk factors for stroke?
as you age, your risk for stroke _____ and ____ each decade after the age of 55
strokes tend to be more common in ____, but more women ___ of a stroke
______ have twice the incidence of stroke and higher death rate from stroke than any other ethnic group
age; gender; race; and genetics
increases; doubles
men; die
african americans
what are some modifiable risk factors for stroke?
a history of _____ is another risk factor for having a stroke
HTN; heart disease; diabetes; smoking; obesity; sleep apnea; and metabolic syndrome
TIAs (trans-ischemic attacks)
trans-ischemic attacks are defined as a _____ of _____ dysfunction without ____ of the brain
with trans-ischemic attacks, symptoms usually last ____ than ____
TIAs are considered a warning sign of what?
a TIA is treated as a medical emergency since it can lead to an ______
transient episode; neurological; infarction
less; one hour
progressive cerebrovascular disease
ischemic stroke
what are some s/s of increased intracranial pressure?
above ____ mmHg is considered a “wide pulse pressure”
pulse pressure increases after _____
cushing’s triad (systolic BP increases, diastolic BP decreases, and HR decreases)
irregular respirations (cheyene-stokes) and elevated temperature
the patient is experiencing a widening of pulse pressure
60 mmHg
60 years old
is an ischemic stroke more common or is a hemorrhagic stroke more common?
what is a thrombotic stroke?
what is a hemorrhagic stroke?
ischemic
the process of clot formation that results in narrowing of the lumen which can block blood flow through the artery
a burst blood vessel that allows blood to seep into and damage brain tissues until the clotting cascade is activated
THROMBOTIC ISCHEMIC STROKES:
- occurs from ____ to a blood vessel wall
- develops when ______ have become ____
- s/s develop _____
- thrombotic strokes are more common in patients who have ____, ____, or high _______
injury
atherosclerotic plaques; narrowed
slowly
diabetes mellitus, atherosclerosis, cholesterol
a ______ stroke is the most common cause of stroke
thrombotic
EMBOLIC STROKES:
- occurs when an ______ (traveling clot) lodges in the _____ artery causing infarction and cerebral edema
- most emboli originate from the _______
- symptoms are _____ and occur_____
embolus; cerebral artery
endocardium
severe; suddenly
what is an example of a diagnostic study that is done to check for ischemic stroke/embolic stroke?
a fatal ischemic stroke is usually seen on the ____ side of the brain
CT scan –> it’s the single most important test
right
HEMORRHAGIC STROKE
what is the etiology?
what are some causes of hemorrhagic stroke?
- bleeding within the brain caused by a ruptured blood vessel
- HTN is the most common cause; other causes include aneurysms, trauma, and brain tumors
what are some s/s of hemorrhagic stroke?
neurologic deficits; headache (pt. will say “i had the worst headache of my life”); N/V; decreased level of consciousness; HTN
what are some different types of postures to look out for in possible seizure patients?
an involuntary flexion or extension of the arms and legs which indicates a severe brain injury; body extension indicates a more severe prognosis
SUBARACHNOID HEMORRHAGE
what is the etiology?
what are some causes of subarachnoid hemorrhage?
what are some s/s of subarachnoid hemorrhage?
- occurs when there is bleeding in the cerebral spinal fluid filled space b/w the arachnoid and pia mater
- caused by rupture of an aneurysm; trauma; cocaine drug use
- similar to ICH; may not have any warning signs until the aneurysm ruptures; N/V; seizures; stiff neck; cranial nerve deficits
- do neurologic manifestations differ between ischemic and hemorrhagic strokes?
- manifestations of a stroke are related to the _____ of the stroke
no, they don’t differ significantly
location
when it comes to ED point of care how long should a stroke patient wait to get from the door to the physician?
how long should it take to reach the stroke care team?
how long should it take for the stroke patient to get to their CT scan?
less than or equal to 10 minutes
less than or equal to 15 minutes
less than or equal to 25 minutes
VOCAB WE NEED TO KNOW:
_____ = weakness
_____ = paralysis
_____ = unsteady gait
_____ = inability to form words
_____ = difficulty related to comprehension or use of language
_____ = inability to perform simple tasks or use objects
_____ = loss of ability to read
hemiparesis;
hemiplegia;
ataxia;
dysarthria;
dysphasia;
apraxia;
alexia
SYMPTOMS AFTER A STROKE (right sided)
- patient is paralyzed on the ____ side (hemiplegia)
- ____ sided neglect
- spatial-perceptual ____
- patient will ___ or ____ problems
- ____ performance with ____ attention span
- ______ judgment
left;
left
deficits
deny; minimize
rapid; short
impaired
SYMPTOMS AFTER A STROKE (left-sided)
- patient is paralyzed on the ____ side
- ____ speech/language aphasias
- impaired __/___ discrimination
- _____ performance/cautious
- patient is ____ of their deficits which causes things like _____ or ____
right;
impaired;
right/left;
slow;
aware; depression or anxiety
what is homonymous hemianopsia?
a condition which the person is only able to see from one side of the visual world after a stroke
what are the goals of nursing care for a stroke patient?
during the acute phase: preserve life and limit further brain damage
during the rehabilitative phase:
lessen disability; obtain optimum function
ACUTE PHASE NURSING CARE:
- we are focusing on ____ and making sure there is a ____
- our other goal is also working on _____ because the patient might need to be _____
circulation; pulse
breathing; intubated
what are some nursing problems we might identify in a stroke patient?
altered cerebral tissue perfusion; self-care deficit; impaired physical mobility; impaired verbal communication; impaired urinary/bowel elimination; altered body image
NURSING PROBLEM: ALTERED CEREBRAL TISSUE PERFUSION
- with an ischemic stroke, how can we manage altered cerebral tissue perfusion?
- with a hemorrhagic stroke how can we manage altered cerebral tissue perfusion?
- through BP management; hypertension is a protective mechanism (our goal is to have the BP > 160/100)
- control the cerebral edema and decrease intracranial pressure through the use of medications like mannitol; hypertonic saline; sedation/pain management; avoiding extreme head and neck flexion
what consists of the inclusion criteria for altered cerebral tissue perfusion with a tPA stroke?
- patient is ___ years or older
- ischemic stroke with _____ deficits
- time of onset less than _____ hours
- 18
- neurological
- 3 - 4.5 hours
what are some examples of medications used for stroke?
- ____ is used for an embolic stroke (needs to be given within a ___ to ___ hour time window)
- anticoagulants: ____ and _____
- antiplatelet agents like ____
seizure control drugs like _____, _____, and neurontin
tPA; 3 - 4.5
controversial heparin; lovenox
aspirin
gabapentin; carbamazepine
____ is another medication used for stroke, specifically to control ____ in a hemorrhagic stroke
nimodipine; vascular spasm
GLASCOW COMA SCALE
15 maximum = _____
13 - 14 = ____ depressed and ____
9 - 12 = ______ and conscious
3 - 8 = ______ depressed and conscious
perfect score
mildly; consciousness
moderately depressed
severely depressed
NIH STROKE SCALE
if the patient has a score of _____ = _____
___ - ____ = minor stroke
____ - _____ = moderate stroke
____ - _____ = moderate to severe stroke
0; no stroke
1 - 4
5 - 15
16 - 20
BRAIN STENT
usually, a ____ is used to treat blockages in cerebral blood flow
a balloon catheter is used to ____ the stent into an artery of the brain
the balloon catheter is moved to the _____ of the artery and then inflated. the stent then expands due to ____ of the balloon
brain stent
implant
blocked area; inflation