CVA/TIA Flashcards Preview

EM - Exam 1 > CVA/TIA > Flashcards

Flashcards in CVA/TIA Deck (10)
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1
Q

What type of stroke is MC?

A

Ischemic

2
Q

What is an ischemic stroke caused by?

A

Thrombotic or embolic occlusion of a cerebral artery

3
Q

What is required for LOC to occur?

A

Defect in both hemispheres OR reticular formation (brainstem)

4
Q

Where does cognition (including language) reside in the brain?

A

Hemisphere

5
Q

Where do isolated cranial nerve deficits reside in the brain?

A

Brainstem

6
Q

Where does vertigo result from?

A

Below the tentorium

7
Q

Which type of defects are lateralized?

A

Structural defects

8
Q

Which type of defects are NOT lateralized?

A

Metabolic defects

9
Q

Ischemia to the retinal artery may result in what?

A
  • Altitudinal defect

- Comes on suddenly (amarosis fugax)

10
Q

Ischemia to the ophthalmic artery results in what?

A

It comes off the carotid resulting in ipsilateral symptoms (if MCA emboli, then also contralateral symps)