Stroke CC2 Flashcards Preview

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Flashcards in Stroke CC2 Deck (43):
1

most ischemic strokes are of ___ etiology

embolic (33%)

30% are large vessel

20% are small vessel

2

___% of strokes are ischemic

83

3

__% of strokes are intracerebral hemorrhage

10

4

__% of strokes are subarchnoid hemorrhages

7

A image thumb
5

#1 risk factor for strokes is

high bp

6

nonmodifiable risk factors for stroke

age, sex, family history

7

stroke mimics include (5)

1. hypoglycemia

2. mass lesions

3. seizures/postictal states

4. migraine

5. psychogenic hemiparesis

8

contralateral hemiparesis (weakness on one side of the body) suggests ___ stroke

MCA

9

sx of anterior division MCA stroke 

contralateral head & eye deviation

10

sx of posterior division MCA stroke 

hemianopsia (contralateral visual field deficit),

11

is ____ is occluded on the right side, what sx do you get neglect

posterior division MCA

12

leg and foot deficits seen with 

ACA stroke

13

what could cause cortical blindness

bilateral PCA stroke

14

what is hemihypaesthesia? with what artery occlusion do you see it? 

complete loss of sensation of the contralateral face, arm, trunk and leg

 

seen with PCA

15

signs of basialr/brainstem stroke 

altered consciousness & crossed signs:

 

cranial nerve deficit on one
side

hemiparesis or sensation loss of body on other side

16

loss of perfusion to internal capsule by lenticulostriate causes __ sx 

pure motor hemiplegia (whole
side)

17

loss of perfusion to thalamus by lenticulostriate causes __ sx 

pure sensory hypaesthesia (whole side)

18

loss of perfusion to pons by lenticulostriate causes __ sx 

dysarthria, clumsy hand syndrome

19

what do you use to rule out hemorrhage?

ct scan (shows up white)

20

early infarct signs on a ct

1. hypodensity of grey or white matter


2. obliteration of cortical sulci

3. obscured basal ganglia

4. loss of insular ribbon

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21

aphasia indicates ___

L. hemispheric stroke 

22

neglect / hemi-inattention indicates 

R. hemispheric stroke

23

patients usually look ___ the lesion

toward

24

crossed signs --> ___ involvement

brainstem

25

vertigo of central origin usu. means 

other cranial nerve deficits

26

vertical nystagmus is brainstem ____ until proven otherwise

ischemia

27

tPA Indications and Contraindications Inculsion if: age___

less than 80

28

tPA Indications and Contraindications Inculsion if: onset is

less than 3 hours

29

tPA Indications and Contraindications Inculsion if: NIHSS ___

less than 24

30

tPA Indications and Contraindications Inculsion if: ___ consent

informed

31

tPA Indications and Contraindications EXCLUSION if: (danger zone)

- CT signs of hemorrhage or very large infarction


- undetermined time of onset


- uncontrollable hypertension or blood sugar


- recent trauma, major surgery or bleeding

- abnormal coagulation profile


- hemodynamic compromise from MI - rapidly resolving deficit

32

tPA Risks and Benefits: treatment group had ___% more patients rated at “good outcome” after 3 months.

30

33

risk of hemorrhage was __% with tPA treatment (1% without)

6

34

hemorrhage after tpa --> __% mortality rate

50

35

secondary risk prevention includes control of modifiable risk factors like 

HTN, diabetes, CAD, obesity

36

___ new or recurrent strokes each year.

 600,000

37

in terms of RR, which is the #1 risk factor of stroke

a. fib

38

__ stenosis is a risk factor of stroke

carotid

39

most common area affected by hemiparesis with right MCA stroke?

face=hand > arm > leg

40

lacunar syndromes involves

pure motor hemiplegia from damage to the internal cpasule

A image thumb
41

???

Q image thumb

subarahnoid hemorrhage

42

Q image thumb

subdural hematoma

43

what is this??

Q image thumb

hyperdense MCA sign

early dx of stroke?

an appearance of increased attenuation of the proximal middle cerebral artery (MCA) that is often associated with thrombosis of the M1 MCA segment