Questions With Verified Multiple Choice and
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1. Approximately how long can the penumbra survive without intervention
before infarction?
A. 2–4 hours
B. 4–6 hours
C. 6–8 hours
D. 10–12 hours
2. What area of ischemic tissue surrounds infarcted tissue yet is salvageable with
timely intervention?
A. Core
B. Infarct zone
C. Penumbra
D. Cortex
3. What is the expected blood flow rate in the infarct core?
A. 0–12 mL/100g/min
B. 20–30 mL/100g/min
C. 35–45 mL/100g/min
D. 50–60 mL/100g/min
, 4. What area is composed of irreversibly damaged tissue without collateral
flow?
A. Penumbra
B. Core
C. Ischemic zone
D. Cortex
5. What cerebral blood flow rate is required for normal brain function?
A. 15 mL/100g/min
B. 25 mL/100g/min
C. 50 mL/100g/min
D. 70 mL/100g/min
6. What is the most common cause of cardioembolic stroke?
A. Endocarditis
B. Atrial fibrillation
C. Myocardial infarction
D. Aortic stenosis
7. What stroke has no single determined cause?
A. Lacunar
B. Cryptogenic
C. Embolic
D. Hemorrhagic
8. Which ischemic stroke type presents with a slow, stuttering onset?
A. Small vessel stroke
B. Large artery atherosclerotic stroke