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6. Neurology (Medical Knowledge) > [TIA] > Flashcards

[TIA] Flashcards

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USMLE® Step 1 flashcards
1
Q
A

<24hrs

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2
Q
A

MI
Stroke

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3
Q
A

critical intracranial stenosis

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4
Q
A

superior division of MCA

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5
Q

[TIA]: progressive vision loss “curtain descending” suggestive of?

A

amaurosis fugax

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6
Q
A

retinal artery embolism

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7
Q
A

stroke in same arterial territory

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8
Q
A

carotid atherothromboembolism

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9
Q
A

carotid bruit

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10
Q
A

prosthetic valve

valve disease

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11
Q
A

AF

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12
Q
A

mural embolism

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13
Q
A

polycythaemia
myeloma
sickle cell anaemia
WCC increased (leucostasis)

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14
Q
A

symptoms spread over seconds
twitching/jerking

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15
Q
A

symptoms spread over minutes
visual scintillations

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16
Q
A

ABCD2

17
Q
A

Age >60
Blood pressure >=140/90
Clinical features
(unilateral weakness =2points
speech disturbance+no weakness=1points)
Duration of symptoms
>1hr = 2 points
10-59mins = 1 point
Diabetes

18
Q
A

> =6

19
Q
A

> =4

20
Q
A

7 days

21
Q
A

1 month

22
Q
A

residual deficit
multiple in short time

23
Q
A

cardioembolism

24
Q
A

Cardiac emboli

25
Q
A

Clopidogrel (75mg/d)
Aspirin (300mg/d)
Dypiridamole (200mg/12hrs)

26
Q
A

aspirin 75mg/d

27
Q
A

inhibits platelet aggregation by modifying platelet ADP-R

28
Q
A

increase cAMP
Decrease Thomboxane A2

29
Q
A

140/85

30
Q
A

> 70% stenosis at origin of internal carotid artery
risk is low

31
Q
A

within 2 weeks of presentation

32
Q
A

no

33
Q
A

transcranial doppler

34
Q
A

Hypoglycaemix attack

35
Q
A

US wave bounce off RBCs.
Shows speed of flow.

36
Q
A

Unilateral weakness = 2pts
No weakness, speech disturbance = 1pt

37
Q
A

> 1hr = 2pts
1-59 mins = 1pt

6. Neurology (Medical Knowledge) (24 decks)

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