Disturbances of Hearing, Balance, Smell, and Taste Flashcards
where do you localize the lesion with unilateral hearing loss
it has to be conduction or sensorineural if it’s unilateral
hearing is represented bilaterally at the level of the brainstem
acoustic trauma damages what area of the ear and what kind of hearing is diminished
damages the cochlea
high tone sensorineural loss
mechanichal trauma to the ear produces what hearing loss?
high tone conductive loss due to perforation of the ear drum
Cerebellar stroke associated with severe vertigo is likely due to what artery?
PICA
Vertigo that develops with extreme extension of the head is likely due to occlusion of what
vertebrobasilar artery
what tones go first with hearing loss in Meniere disease?
lower tones
what medications may cause toxic labyrinthitis with vertigo?
Salicylates, alcohol, quinine, and aminoglycosides
what medications are used to treat vertigo?
Promethazine, dimenhydrinate, and meclizine
where is the olfactory cortex located?
lateral olfactory gyrus (perpiniform area)
What is Foster-Kennedy syndrome?
Ipsilateral optic atrophy and contralateral papilledema associated with an intracranial tumor
A meningioma of the olfactory groove may produce this syndrome
repeated brief episodes of fullness in the ear, tinnitus, hearing loss, and severe vertigo is indicative of?
Meniere’s disease
what are the names of some aminoglycosides?
streptomycin, gentimicin, kanamycin, tobramycin, and neomycin
progressive vertigo, ataxia, sensory loss, dysphagia, and hiccups = ?
lateral medullary syndrome (usually due to distal vertebral artery occlusion)
