Stroke (week 4) Flashcards
what is stroke and TIA due to
interruption of blood supply to the brain
what percentage of TIAs are resolved in what amount of time
90% resolved in 90 mins
stroke definition
rapid onset focal neurological symptoms and/or signs lasting more than 24 hours or leading to death with no apparent cause other than vascular
conditions that may mimic a stroke? (differential diagnoses)
brain tumour
subdural haematoma
hypoglycaemia
neurological condition eg MS
epileptic seizure
stroke risk factors
hypertension
smoking
hyperlipidaemia
diabetes
excessive alcohol intake
atrial fibrillation (irregular heartbeat)
biggest risk factor
hypertension
anterior circulation stroke features
motor/sensory loss affecting
face, arm, hand, leg
posterior circulation stroke features
facial weakness
disorder of eye movement
contra-lateral motor/sensory loss
co-ordination loss
causes of stroke?
infarction - 85%
haemorrhage - 15%
treatment of stroke?
asparin - reduces stickiness of platelets
heparin - blood thinner, treats clots
what does heparin increase the risk of?
brain haemorrhage
