Neurological Flashcards
symptoms of a cerebral hemisphere infarct?
contralateral hemiplegia, then spasticity
contralateral sensory loss
homonymous hemianopia
dysphasia
symptoms of brainstem/posterior circulation infarct
locked in syndrome
quadriplegia
visual disturbances
symptoms of lacunar infarct?
motor, sensory, mixed effects - ataxia
cognition + consciousness intact
in what situations should CT scan be performed as soon as possible
anticoagulated, known bleeding tendency, GCS <13, papilloedema, neck stiffness, severe headache at onset of symptoms
Management of ischaemic stroke
Alteplase thrombolysis
Aspirin, switch to clopidogrel after 2 weeks
management for haemorrhagic stroke
surgical
maintain oxygen and fluids
monitor but don’t treat BP as may impair cerebral perfusion
management of a TIA?
immediate aspirin /clopidogrel
novel anticoagulant - Rivaroxaban
presentation of a subarachnoid haemorrhage
thunderclap headache, worst they’ve ever had
vomiting, collapse, coma
how is subarachnoid haemorrhage investigated
CT head
lumbar puncture - bilirubin in CSF confirms SAH
difference between focal and generalised seizure?
Focal (partial) - limited to one hemisphere
Generalised - +/- convulsions, with bilateral discharges, patient usually loses consciousness and memory of seizure
different types of focal seizures and their symptoms?
Temporal - tastes, smells, Deja vu
Frontal - twitching, feel a wave going through head
Parietal - numbness, abnormal limb sensation
Occipital - visuals
Complex - multi lobe
types of generalised seizure?
Absence Myoclonic - muscle jerk, pt conscious Clonic - convulsive, pt goes stiff Tonic - muscles stiffen Tonic-clonic - body stiff, convulsive Atonic - muscle relax, go floppy
preferred medication for focal and generalised seizures
Focal - carbamazepine, lamotrigine
Generalised - sodium valproate
common viral causes of meningitis?
enteroviruses, HSV, mumps, varicella zoster
Common bacterial causes of meningitis
Neisseria meningitides, strep pneumonia, staph aureus