Stroke Flashcards

1
Q

What is a stroke?

A

cerebrovascular accident- the rapid loss of brain function due to a disturbance in blood supply, lasting more than 24 hours.

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2
Q

What is an ischaemic stroke?

A

due to a blockage

embolism: obstruction of a blood vessel due to a blood clot somewhere else in the body
thrombosis: obstruction of a blood vessel due to a blood clot formed locally

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3
Q

What is a haemorrhage?

A

bleeding from one of the cerebral arteries or a ruptured blood vessel

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4
Q

Intracerebral haemorrhage

A

arterial walls weaken
microaneurysms develop which rupture and bleed
blood leaks directly into the brain tissue, building up a haematoma

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5
Q

Subarachnoid haemorrhage

A

bleeding into the subarachnoid space

due to a rupture of an aneurysm

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6
Q

What is thrombolysis

A

clot busting drug so that the clot disperses the clot and returns the blood supply to your brain.

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7
Q

How long after a stroke can thrombolysis be used?

A

For most people thrombolysis needs to be given within four and a half hours of your stroke symptoms starting. the more time that passes, the less effective thrombolysis will be.

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8
Q

thrombosis

A

A thrombus is a blood clot that forms in a vein

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9
Q

Embolism

A

anything that travels through the blood vessels until it reaches a vessel that is too small to let it pass.

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10
Q

What is an infarct?

A

area of necrotic tissue in the brain resulting from a blockage or narrowing in the arteries supplying blood and oxygen to the brain.

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