334525
CVA's
- Ischemic Stroke -
loss of fx from
disruption of blood
supply to brain
- large artery
thrombotic
- atherosclerotic
plaques in large
blood vessels in
brain
- atherosclerotic
plaques in large
blood vessels in
brain
- small penetrating
artery thrombotic
- most common,
1+ vessels
affected
- most common,
1+ vessels
affected
- cardiogenic embolic
- cardiac
dysrrhythmias
usually A. fib,
- cardiac
dysrrhythmias
usually A. fib,
- cryptogenic
- cause
unknown
- cause
unknown
- Pathophsyiology
- Ischemic
cascade
- cerebral blood flow decr. to
<25ml/100g/min, anaerobic
resp = lactic acid incr = pH
change
- cerebral blood flow decr. to
<25ml/100g/min, anaerobic
resp = lactic acid incr = pH
change
- Ischemic
cascade
- CM's
- numbness/weakness
of face, arm, leg esp.
unilaterally
- mental
status
change
- dysarthria - difficulty speaking,
dysphasia - impaired speech,
aphasia - loss of speech
(receptive, expressive, mixed),
apraxia - can't perform learned
ability
- Right sided -
distractibility,
impulsive,
spatial/perceptual
dysfx
- Left sided -
cautious, slow,
aphasia, alt
intellect
- dysarthria - difficulty speaking,
dysphasia - impaired speech,
aphasia - loss of speech
(receptive, expressive, mixed),
apraxia - can't perform learned
ability
- numbness/weakness
of face, arm, leg esp.
unilaterally
- large artery
thrombotic
- Hemorrhagic Stroke
- chiefly caused by
uncontrolled HTN
- longer recovery
phase/more
severe deficits
than ischemic
- s/s - decr LOC,
exploding HA
- chiefly caused by
uncontrolled HTN
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