27c - Stroke Diagnosis and Management

Question 1

How long does it take for an infarct to show up on CT?

Answer 1

6-12 hours so not good for ischemic stroke but brilliant for hemorrhagic so always do it

Question 2

What type of MRI is sensitive to early ischemic changes?

Answer 2

MRI DWI

Question 3

When should you treat with IV tPA?

Answer 3

if you get to them <4.5 hours from onset of symptoms

Question 4

When should you treat with intraarterial tPA?

Answer 4

<6 hours from onset of symptoms

Question 5

When should you physically retrieve the clot?

Answer 5

< 8 hours from onset of symptoms