Stroke and Related Topics Quiz
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Questions and Answers

What is the most common type of stroke?

  • Lacunar
  • Transient Ischemic Attack (TIA)
  • Hemorrhagic
  • Ischemic (correct)
  • Which artery is most commonly affected in ischemic strokes?

  • Basilar Artery
  • Middle Cerebral Artery (MCA) (correct)
  • Anterior Cerebral Artery (ACA)
  • Posterior Cerebral Artery (PCA)
  • What is the primary cause of embolic strokes?

  • Atrial fibrillation (correct)
  • Diabetes
  • Hypertension
  • Carotid stenosis
  • Which of the following is NOT a risk factor for stroke?

    <p>Hypoglycemia</p> Signup and view all the answers

    What percentage of strokes are ischemic?

    <p>85%</p> Signup and view all the answers

    What is the clinical hallmark of lacunar stroke?

    <p>Pure motor or sensory symptoms</p> Signup and view all the answers

    Which imaging modality is most commonly used to detect acute hemorrhage in stroke?

    <p>CT without contrast</p> Signup and view all the answers

    Which clinical symptom is associated with MCA stroke in the dominant hemisphere?

    <p>Aphasia</p> Signup and view all the answers

    What is the main difference between TIA and stroke?

    <p>Duration of symptoms</p> Signup and view all the answers

    Which artery supplies the occipital lobe?

    <p>PCA</p> Signup and view all the answers

    How long do symptoms of TIA typically last?

    <p>&lt;24 hours</p> Signup and view all the answers

    Which imaging finding excludes the diagnosis of TIA?

    <p>Normal brain imaging</p> Signup and view all the answers

    What is primary goal of TIA management?

    <p>Prevent future strokes</p> Signup and view all the answers

    What is the most important modifiable risk factor for TIA?

    <p>Hypertension</p> Signup and view all the answers

    Which test is commonly used to detect carotid stenosis in TIA patients?

    <p>Doppler ultrasound</p> Signup and view all the answers

    What is the most common cause of subarachnoid hemorrhage?

    <p>Berry aneurysm rupture</p> Signup and view all the answers

    What is a hallmark symptom of subarachnoid hemorrhage?

    <p>Thunderclap headache</p> Signup and view all the answers

    Which condition is most associated with intracerebral hemorrhage?

    <p>Hypertension</p> Signup and view all the answers

    What is the most common site of hypertensive hemorrhage?

    <p>Basal ganglia</p> Signup and view all the answers

    Which imaging modality is the first-line for diagnosing intracranial hemorrhage?

    <p>CT without contrast</p> Signup and view all the answers

    Which symptom is most likely in a patient with ACA stroke?

    <p>Lower limb weakness</p> Signup and view all the answers

    Which artery is affected in a patient with contralateral homonymous hemianopia?

    <p>MCA</p> Signup and view all the answers

    What is the most likely deficit in a patient with a nondominant hemisphere MCA stroke?

    <p>Hemi neglect</p> Signup and view all the answers

    What is Broca's aphasia associated with?

    <p>Motor impairment of speech</p> Signup and view all the answers

    Which symptom is most specific for a cerebellar stroke?

    <p>Vertigo</p> Signup and view all the answers

    What is the first imaging test for suspected stroke?

    <p>CT without contrast</p> Signup and view all the answers

    Which lab test is essential to rule out a mimicking condition in suspected stroke?

    <p>D-dimer</p> Signup and view all the answers

    What is the purpose of a diffusion-weighted MRI in stroke?

    <p>Confirm ischemia</p> Signup and view all the answers

    Which test evaluates for atrial fibrillation as a cause of stroke?

    <p>ECG</p> Signup and view all the answers

    What is the gold standard for diagnosing carotid artery stenosis?

    <p>Angiography</p> Signup and view all the answers

    What is the time window for administering IV thrombolysis in ischemic stroke?

    <p>3-4.5 hours</p> Signup and view all the answers

    What is the contraindication for using thrombolytics in stroke?

    <p>Hypertension &gt;185/110 mmHg</p> Signup and view all the answers

    Which medication is first-line in preventing recurrent ischemic strokes?

    <p>Aspirin</p> Signup and view all the answers

    What is the main goal of blood pressure management in hemorrhagic stroke?

    <p>Control intracranial pressure</p> Signup and view all the answers

    Which procedure is recommended for severe carotid stenosis?

    <p>Endarterectomy</p> Signup and view all the answers

    What is the mechanism of action of alteplase (tPA)?

    <p>Activates plasminogen to plasmin</p> Signup and view all the answers

    What is the threshold blood pressure for initiating antihypertensive therapy in acute ischemic stroke?

    <blockquote> <p>160/90 mmHg</p> </blockquote> Signup and view all the answers

    Which condition increases the risk of embolic stroke the most?

    <p>Atrial fibrillation</p> Signup and view all the answers

    What is the most common complication of subarachnoid hemorrhage?

    <p>Vasospasm</p> Signup and view all the answers

    Which imaging modality is preferred for diagnosing small vessel lacunar infarcts?

    <p>MRI with diffusion-weighted imaging (DWI)</p> Signup and view all the answers

    What is the first-line treatment for preventing secondary stroke in patients with atrial fibrillation?

    <p>Warfarin</p> Signup and view all the answers

    Which symptom is most characteristic of a posterior cerebral artery (PCA) stroke?

    <p>Contralateral homonymous hemianopia</p> Signup and view all the answers

    What is the most common cause of global cerebral ischemia?

    <p>Cardiac arrest</p> Signup and view all the answers

    Which test is most commonly used to confirm ischemic penumbra in stroke patients?

    <p>CT perfusion</p> Signup and view all the answers

    Which neurological condition mimics a stroke but resolves within hours?

    <p>TIA</p> Signup and view all the answers

    What is the most sensitive imaging modality for early ischemic stroke?

    <p>MRI diffusion-weighted imaging (DWI)</p> Signup and view all the answers

    What is the preferred intervention for acute ischemic stroke within 6 hours of symptom onset?

    <p>Intravenous thrombolysis</p> Signup and view all the answers

    Which artery is affected in Wallenberg syndrome?

    <p>Posterior inferior cerebellar artery</p> Signup and view all the answers

    What is the most common cause of stroke in young adults?

    <p>Drug use (e.g., cocaine)</p> Signup and view all the answers

    Which medication is commonly prescribed for long-term prevention of stroke in patients with high LDL cholesterol?

    <p>Statins</p> Signup and view all the answers

    Study Notes

    • Most common stroke type: Ischemic
    • Artery most commonly affected in ischemic stroke: Middle Cerebral Artery (MCA)
    • Primary cause of embolic stroke: Atrial fibrillation
    • Risk factors for stroke (not a risk factor): Hypoglycemia
    • Percentage of ischemic strokes: 85%
    • Clinical hallmark of lacunar stroke: Pure motor or sensory symptoms
    • Imaging modality for acute hemorrhage: CT without contrast
    • Symptom associated with MCA stroke (dominant hemisphere): Aphasia
    • Difference between TIA and stroke: Duration of symptoms
    • Artery supplying occipital lobe: Posterior Cerebral Artery (PCA)
    • Typical TIA symptom duration: < 1 hour
    • Imaging finding excluding TIA diagnosis: Hyperdensity on CT
    • Primary goal of TIA management: Prevent future strokes
    • Most important modifiable risk factor for TIA: Hypertension
    • Test for carotid stenosis: Doppler ultrasound
    • Cause of subarachnoid hemorrhage: Berry aneurysm rupture
    • Hallmark symptom of subarachnoid hemorrhage: Thunderclap headache
    • Condition most associated with intracerebral hemorrhage: Hypertension
    • Common site of hypertensive hemorrhage: Basal ganglia
    • First-line imaging for intracranial hemorrhage: CT without contrast
    • Symptom associated with ACA stroke: Lower limb weakness
    • Artery affected in contralateral homonymous hemianopia: MCA
    • Likely deficit in nondominant hemisphere MCA stroke: Hemineglect
    • Broca's aphasia association: Motor impairment of speech
    • Symptom most specific for cerebellar stroke: Vertigo
    • First imaging test for suspected stroke: CT without contrast
    • Essential lab rule out mimicking stroke condition: D-dimer
    • Purpose of diffusion-weighted MRI in stroke: Detect ischemia
    • Test evaluating for atrial fibrillation: ECG
    • Gold standard for carotid artery stenosis diagnosis: Angiography
    • Time window for IV thrombolysis in ischemic stroke: 3-4.5 hours
    • Contraindication for thrombolytics in stroke: Hypertension >185/110 mmHg
    • First line medication for recurrent ischemic strokes: Aspirin
    • Goal of blood pressure management in hemorrhagic stroke: Control intracranial pressure
    • Procedure for severe carotid stenosis: Endarterectomy
    • Mechanism of action of alteplase (tPA): Activates plasminogen to plasmin
    • Threshold blood pressure for antihypertensive therapy: >180/110 mmHg
    • Condition increasing embolic stroke risk: Atrial fibrillation
    • Most common complication of subarachnoid hemorrhage: Vasospasm
    • Imaging modality for small vessel lacunar infarcts: MRI with diffusion-weighted imaging (DWI)
    • First-line treatment for secondary stroke prevention in atrial fibrillation: Warfarin
    • Symptom characteristic of PCA stroke: Contralateral homonymous hemianopia
    • Most common cause of global cerebral ischemia: Cardiac arrest
    • Test confirming ischemic penumbra: CT perfusion
    • Neurological condition mimicking stroke: Migraine aura
    • Most sensitive imaging modality for early ischemic stroke: MRI diffusion-weighted imaging (DWI)
    • Preferred intervention for acute ischemic stroke (within 6 hours): Intravenous thrombolysis
    • Artery affected in Wallenberg syndrome: Posterior inferior cerebellar artery
    • Most common cause of stroke in young adults: Carotid artery dissection
    • Medication for long-term stroke prevention (high LDL): Statins

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