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