[MCQ] Cerebrovascular Diseases Ischemic stroke- Part 2

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Cerebrovascular Diseases Ischemic stroke- Part 1| Cerebrovascular Diseases Ischemic stroke- Part 2| Cerebrovascular Diseases Ischemic stroke- Part 3|Cerebrovascular Diseases Ischemic stroke- Part 4|Cerebrovascular Diseases Ischemic stroke- Part 5| Cerebrovascular Diseases Ischemic stroke- Part 6| Cerebrovascular Diseases Ischemic stroke- Part 7|Cerebrovascular Diseases Ischemic stroke- Part 8

1 In acute ischemic stroke, cerebral edema peaks on ?
A. Day 1
B. Day 2 – 3
C. Day 4 – 5
D. Day 5 – 6

2 The established dose of rtPA to be administered within 3 hours of
acute ischemic stroke is ?
A. 0.1 mg/kg
B. 0.3 mg/kg
C. 0.9 mg/kg
D. 1.2 mg/kg

3 The time of acute ischemic stroke onset is defined as ?
A. Time the patient’s symptoms began
B. Time the patient was last seen as normal
C. Time to bed in those who awaken with stroke
D. All of the above

4 Which of the following studied the value of thrombolytics via an
intraarterial route in acute ischemic stroke ?
A. PROACT II
B. ECASS
C. ATLANTIS
D. NINDS

5 In Chinese Acute Stroke Trial (CAST), dose of aspirin was ?
A. 75 mg/day
B. 160 mg/day
C. 300 mg/day
D. 625 mg/day

6 TOAST trial investigated which of the following in acute ischemic
stroke ?
A. Low-molecular-weight heparin
B. Unfractionated heparin
C. Aspirin
D. Glycoprotein IIb/IIIa

7 Neuroprotection is the concept related to ?
A. Preventing reinfarction
B. Prolonging brain’s tolerance to ischemia
C. Checking the risk factors
D. All of the above

8 Restraint therapy is best related to ?
A. Checking the risk factors
B. Checking the precipitating factors
C. Recruiting unused neural pathways
D. Avoiding psychological stress

9 Emboli in ‘Hollenhorst plaque’ are composed of ?
A. Cholesterol
B. Calcium
C. Platelet-fibrin debris
D. Bacteria

10 Todd’s paresis is related to ?
A. Seizure
B. Brain tumor
C. Migraine
D. Metabolic encephalopathy

11 Cerebral perfusion pressure (CPP) is defined as ?
A. Systolic blood pressure – intracranial pressure
B. Diastolic blood pressure – intracranial pressure
C. Mean arterial pressure – intracranial pressure
D. Mean arterial pressure (MAP) ÷ intracranial pressure

12 Which of the following is responsible for autoregulation of cerebral
blood flow ?
A. Stems of ACA, MCA, PCA
B. Circle of Willis
C. Microcirculation
D. All of the above

13 Cerebral blood flow is principally influenced by all except ?
A. Systemic blood pressure
B. pH
C. PCO2
D. PO2

14 Volume of CSF within ventricles and surrounding the brain and
spinal cord is about ?
A. 50 mL
B. 100 mL
C. 150 mL
D. 200 mL
15 Cerebral blood volume is about ?
A. 50 mL
B. 100 mL
C. 150 mL
D. 200 mL

16 “Histotoxic hypoxia” is produced by ?
A. Shock
B. Asphyxiation
C. Carbon monoxide poisoning
D. Any of the above

17  Selective persistent memory deficits after brief cardiac arrest is
due to injury to ?
A. Cerebral cortex
B. Basal ganglia
C. Hippocampus
D. Hypothalamus

18 Which of the following convey a poor prognosis after a severe
hypoxic-ischemic insult ?
A. Myoclonic status epilepticus
B. Absence of pupillary light reflex day 3 after injury
C. Bilateral absence of somatosensory evoked response
D. All of the above

19 What proportion of all ischemic strokes are due to cardioembolism ?
A. ~ 10 %
B. ~ 20 %
C. ~ 30 %
D. ~ 40 %

20 What proportion of all ischemic strokes are due to carotid
atherosclerosis ?
A. ~ 10 %
B. ~ 20 %
C. ~ 30 %
D. ~ 40 %

21 What proportion of all strokes are due to small-vessel disease ?
A. ~ 10 %
B. ~ 20 %
C. ~ 30 %
D. ~ 40 %

22 Sudden onset of neurologic dysfunction in embolic stroke is
usually maximum at ?
A. Onset
B. At 12 hours
C. At 24 hours
D. At 48 hours

23 Which of the following vessels is infrequently involved in
embolization from heart ?
A. Anterior cerebral artery (ACA)
B. Middle cerebral artery (MCA)
C. Posterior cerebral artery (PCA)
D. Branches of posterior cerebral artery