ANSWERS
Approximately how long can the penumbra survive without intervention before infarction - ANS -6-8
hours
What area of ischemic tissue surrounds infarcted tissue yet is salvageable with timely intervention? -
ANS -penumbra
What is the expected blood flow rate in the infarct core? - ANS -0-12ml/100g/min
What area is composed of infarcted, irreversibly damaged tissue without collateral blood flow? - ANS -
core
What cerebral blood flow rate is required for normal brain function? - ANS -50 ml/100g/min
What is the most common cause of cardioembolic stroke? - ANS -a fib
What stroke has no single determined cause? - ANS -cryptogenic stroke
What ischemic stroke pathology involves a slow, stuttering/fluctuating presentation? - ANS -large artery
atherosclerotic stroke
What areas are usually affected by small vessel occlusions? - ANS -basal ganglia and internal capsule
Which condition resolves within an hour or so without infarction - ANS -transient ischemic attack
What locations are common for jntracerebral hemorrhage caused by hypertension? - ANS -basal ganglia
and brainstem