three symptoms to differentiate the cause between
cardiac
neurological
vestibular
presentation of dizziness due to a cardiac problem
light-headed
syncope
palpitations
presentation of dizziness due to a neurological problem
blackouts visual disturbance paraesthesia weakness speech swallow
presentation of dizziness due to a vestibular problem
vertigo
sense of motion e.g. spinning, falling, being pushed
examination
otoscopy neurological BP standing/lying balance system audiometry
common causes of dizziness
postural dizziness
side effects of medication
what does a vertical nystagmus or a nystagmus that changes direction indicate?
central lesion on the brain rather than a problem with the vestibular-ocular reflex
describe the vestibular ocular reflex
this stabilises gaze
eye movement opposite direction to head movement