The Dizzy Patient Flashcards
what type of dizziness is all ear related dizziness
vertigo (spinning)
what can cause dizziness
- cardiovascular problems
- haematological and metabolic diseases
- anxiety
- neurological conditions
- drug side effects/interactions
- migraine
- otological
- trauma
what questions should you ask in a vertigo history
-duration of episodes
what does v short episodes of vertigo suggest (seconds)
benign paroxysmal positional vertigo
what does hour long episodes of vertigo suggest
Menieres
what do day long episodes of vertigo suggest
vestibular neuritis
what causes variable lengths of vertigo
migraine related vertigo
what are the balance systems
visual
cardiovascular
proprioceptive
vestibular
what are vestibular causes of dizziness
benign paroxysmal positional vertigo
meniere’s disease
vestibular neuronitis
visual causes of dizziness
cataracts
diabetes
proprioceptive causes of dizziness
diabetes
arthritis
neurology
cardiovascular causes of dizziness
arrhythmias
postural hypotension
what are central pathway causes of dizziness
migraine
stress
space occupying lesion
MS
what type of vertigo makes you dizzy rolling over in bed
BPPV
first attack severe, lasting house with nausea and vomiting
vestibular neuritis
light sensitive during dizzy spells
vestibular migraine
one ear feels full or hearing loss before or during the dizzy spells
Meniere’s disease
what examinations are done for dizziness
otoscope neurological blood pressure (lying/standing) balance system audiometry
what is the vestibulo-occular reflex
ears sense the head rotating which causes the eyes to move in the other direction
what happens to the vestibule ocular reflex in right vestibular neuritis
the right side of the ear can’t sense balance so doesn’t cause the eye to move in the opposite direction
which ear does the eye twitch to with a nystagmus
the ear with the problem
if they’re going both ways its a central region (same for vertical nystagmus)
how do you test vestibuloocular reflex
head impulse test
what is benign paroxysmal postural vertigo (BPPV)
very common cause of vertigo caused by otolith material (crystals) from the utricle being displaced into the semi-circular canals (most commonly the posterior SSC)
when do you get vertigo with BPPV
- looking up
- turning in bed
- first lying down in bed at night
- first getting out of bed in the morning
- bending forwards
- rising from bending
- moving head quickly - often in one direction