Practice questions › MBBS / Medicine › Neurology
Stroke MCQs
Neurology · MBBS / Medicine · 27 practice questions
- Clinical-Anatomic Correlation - Arterial Territories
- Anterior vs Posterior Circulation Syndromes
- Approach to Diagnosis - Key Features of Stroke
- Posterior Circulation - Brainstem/Cerebellar Signs
- Ischemia - Penumbra and Infarct Expansion
- Ischemia - Pathophysiology of Cell Death
- Focal Involvement - Ischemia vs Hemorrhage
- Epidemiology and Risk Factors
1. A 72-year-old woman has three episodes over one week, each producing right arm weakness and word-finding difficulty that resolves completely within 30 minutes. Based on the pattern described, which underlying mechanism is most likely?
- AGlobal cerebral ischemia from cardiac arrest
- BCerebral amyloid angiopathy causing recurrent lobar hemorrhage
- CThrombosis or embolism arising from the same site within the cerebral circulation
- DRecurrent emboli from multiple distant sources
Show answer
C. Thrombosis or embolism arising from the same site within the cerebral circulation The text states that recurrent TIAs with identical clinical features (stereotypic TIAs) are usually caused by thrombosis or embolism arising from the same site, whereas TIAs that differ in character suggest recurrent emboli from distant or multiple sites.
2. A patient has had three TIAs over the past month, each time with different symptoms: once with aphasia and right arm weakness, once with left leg weakness, and once with vertigo and diplopia. Based on this pattern, what is the most likely underlying source?
- ARecurrent emboli from a distant or multiple sites such as the heart
- BA stereotypic lacunar syndrome from small vessel disease
- CThrombosis at a single fixed arterial stenosis
- DVasogenic edema causing fluctuating mass effect
Show answer
A. Recurrent emboli from a distant or multiple sites such as the heart TIAs that differ in character from event to event suggest recurrent emboli from distant (eg, cardiac) or multiple sites, as opposed to stereotypic TIAs from a fixed local lesion.
3. A patient suffers a brief episode of cardiac arrest with prompt return of spontaneous circulation and rapid reperfusion of the brain. Compared to a patient with complete, permanent arterial occlusion without reperfusion, which pattern of neuronal injury would be expected in the cardiac arrest patient?
- ASelective neuronal necrosis affecting most or all neurons while sparing glia and vascular cells
- BVasogenic edema as the sole finding with no neuronal death
- CPannecrosis affecting all cell types with chronic cavitary lesions
- DSelective vulnerability of certain neuronal populations
Show answer
D. Selective vulnerability of certain neuronal populations The text distinguishes mild ischemia with rapid reperfusion (as in cardiac arrest) causing selective vulnerability of certain neuronal populations, from complete permanent ischemia causing pannecrosis.
Practise all 27 questions free
Every answer is marked the moment you tap it, with the reason. Your weak topics come back until you get them right.
Start free, no card needed