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Stroke
Question | Answer |
---|---|
Describe what happens during a Stroke | Blood Flow to the Brain is obstructed - Longer lasting |
Describe what happens during a TIA | Blood flow to the Brain is temporary obstructed - Short lived - usually resolved in 24hrs |
What is meant by the word 'Transient' | Lasting for a short time |
What is meant by the word 'Ischaemic' | Decrease in blood supply |
What are the types of Stroke | Ischaemic or Haemorrhagic |
What is an Ischaemic Stroke | Occurs when a thrombus or embolus obstructs a blood vessel - reducing blood flow |
What is a Haemorrhagic Stroke | Due to bleeding into the Brain by rupture of blood vessel - Intercerebral Haemorrhage or Subarachnoid Haemorrhage |
What is a Intracerebral Haemorrhage | Blood vessel rupture inside the brain - bleeds into Brain Tissue |
What us a Subarachnoid Haemorrhage | Bleed on surface of Brain - Bleeds in between Pia Mater. + Arachnoid Mater |
Haemorrhagic Stroke + Intracranial Pressure can lead to | Cushing Triad due to ICP causing brain to squeeze toward Foremen Magnum |
Where is the Foremen Magnum | Base of the Skull |
What is Cushing Triad | Bradycardia/Hypertension/Irregular respirations |
What is an LVO | Large Vessel Occlusion - Blood flow to main arteries in the Brain are obstructed |
What is the next step in an ACT FAST assessment when the pt Right arm drops | CHAT - Test speech/Commands |
What is the next step in an ACT FAST assessment when the pt Left arm drops | TAP - tap shoulder + check gaze |
What is the 3rd step in an ACT FAST assessment | History - Living independently/Hx of Stroke/Stroke Mimics |
What is the time frame for ACT FAST positive | 24hrs |
What is the time frame for FAST positive | 4.5hrs |
What are some Stroke Mimics | Hypoglycaemia/Tumours/Infections/Postictal/Hypoxia/Bells Palsy/Intoxication |
What is a thrombectomy | Removal of clot |
What is a Thrombolysis | Clot busting medication |