neuro-stroke

Question 1

most common cause of TIA/CVA

Answer 1

emboli

Question 2

signs and sx of subclavian steal syndrome

Answer 2

sx= vertebrobasila arterial insufficiency (n/v, double vision, vertigo, dysphagia etc)

signs= BP in left are less than right

Question 3

presentation of MCA stroke

Answer 3

contralateral weakness
sensory loss
hyperreflexia

Question 4

name 4 causes of stroke

Answer 4

1. emboli - most common
2. thrombotic - think large vessels like MCA and carotids
3. lacunar- think HTN, cause by thickening of dz vessel wall
4. nonvascular - anoxic brain injury

Question 5

clinical features of lacunar stroke

Answer 5

pure motor or pure sensory

• motor –> internal capsule
• sensory –> thalamus

Question 6

cerebral edema post infarct

Answer 6

appears in 1-2 days, can cause mass effect for up to 10

tx with hyperventilation and mannitol

Question 7

saccular (berry) aneuryms are found…

Answer 7

at the bifurcation of arteries of circle of willis

Question 8

diagnosis of SAH gold standard?

Answer 8

Xanthochromia (yellow CSF) on LP

*blood in CSF is hallmark

Question 9

xanthochromia

Answer 9

yellow CSF seen in SAH is indication of RBC lysis and that blood is NOT from a traumatic spinal tap

Question 10

SAH is diagnosed. next step?

Answer 10

angiogram –> for surgical clipping