Definitions Quiz

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1. What is the definition of a TIA and what is the difference from stroke?

  • An episode of cerebral dysfunction caused by impaired blood supply to the brain vessels. It last 30 minutes and
  • An episode of tempoary cerebral dysfunction caused by impaired blood flow to the head that usually lasts only a few minutes and resolved in less than 24 hours
  • An episode of permanent cerebral dysfunction caused by blood no reaching the head. It lasts only 24 hours
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2. Dysphagia is

  • Difficulty with movement due to disruption in the motor cortex leading to a lack of innervation of the muscle fibers.
  • Difficulty with swallowing due to disruption in the swallowing process.
  • Difficulty with communication. Due to the hypoxic nature of a stroke, broca's (expressive) and weirnicke's (receptive) area are starved of oxygen and damaged.

3. Which are the correct buzz words for the pathophysiology of stroke?

  • Ischaemic cascade, prologned ischaemia = tissue damage, collateral circulation, recovery potential, iscahemic processes
  • Prolonged ischaemia = tissue damage, recovery potential, collateral circulation, ischaemic cascade, ischaemic processes
  • Prolonged ischaemia = tissue damage, recovery potential, contralateral circulation, ischaemic cascade, ischaemic processes

4. Aphasia is

  • Inability to communicate. Wernicke's is affected only
  • Inability to communicate. Either broca's or wernicke's are affected. Understanding and use of correct words in writing or speaking.
  • Lack of communication, has some understanding but not all. Broca's is affected onlly

5. Dyskinesia is

  • Involuntary movement disorder distinguished by the underlying cause e.g myoclonus, dystonia, tremor
  • Voluntary movement disorder caused by heightened spasticity and tremor
  • Involuntary movement disorder distiguished by high tone and cerebral dysfunction

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