CVA/TIA

Question 1

What type of stroke is MC?

Answer 1

Ischemic

Question 2

What is an ischemic stroke caused by?

Answer 2

Thrombotic or embolic occlusion of a cerebral artery

Question 3

What is required for LOC to occur?

Answer 3

Defect in both hemispheres OR reticular formation (brainstem)

Question 4

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

Answer 4

Hemisphere

Question 5

Where do isolated cranial nerve deficits reside in the brain?

Answer 5

Brainstem

Question 6

Where does vertigo result from?

Answer 6

Below the tentorium

Question 7

Which type of defects are lateralized?

Answer 7

Structural defects

Question 8

Which type of defects are NOT lateralized?

Answer 8

Metabolic defects

Question 9

Ischemia to the retinal artery may result in what?

Answer 9

• Altitudinal defect

- Comes on suddenly (amarosis fugax)

Question 10

Ischemia to the ophthalmic artery results in what?

Answer 10

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