The Dizzy Patient Flashcards
how will a patient explain vertigo?
room is spinning
they are spinning
most common form of vertigo?
benign positional paroxysmal vertigo
meniere’s disease is uncommon T or F
T
what part of the semicircular canals is classed as a vestibular end organ
their ampullae
what parts of the utricle and saccule are considered to be vestibular end organs?
maculae
what parts of the brain control movement?
cerebellum
brainstem
what brain conditions/symptoms can affect balance?
MS
SOL
stress
migraine
how is a patient with dizziness examined?
otoscopy neurological exam blood pressure balance system eg hallpike's test audiometry
common causes of dizziness?
medication
postural hypotension
specific causes of dizziness?
meniere's disease benign positional paroxysmal vertigo vestibular neuronitis labrynthitis migrainous vertigo
causes of benign positional paroxysmal vertigo?
head trauma
ear surgery
idiopathic
pathophysiology of BPPV
otolith displaced into the semicircular canals, particularly the posterior SCC
most common area for otoliths to deposit and why?
posterior semicircular canal
is the lowest so gravity causes it
what should otoliths be attached to?
otolithic membrane of the utricle and saccule
another name for otoliths?
calcium carbonate crystals