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Kaplan Qbank USMLE



Author7 Posts
  #1

a man has an attack of sudden loss of labyrinth funciton for a minute.then he feels normal. recurrency is common afterwards. what is the diagnosis?

A benign positional vertigo
B meniere's diseas
C acoustic neuroma
D vertebrobasilar insufficiency
raised eyebrow

  #2

With limited information, I guess it could be A -bppv.

b - Classic triad of tinnitus,hearing loss
c - only one attack not suggestive + hearing loss should be there
d - other symptoms like blurry vision etc would be expected

This attack could be explained by the otolith present in the labryinth which could be relieved by changing positions.

  #3

thanks!
that is what I thought. then ,i am not sure because that labyrinth includes cochlea and vestibular system. does the loss of labyrinth function mean loss of both hearing and balance? then, A is no hearing loss. so i am confuseddisapproval

  #4

b...it occurs as recurrent attacks.,,,due to increased fluid in endolymphatic duct

  #5

B??


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  #6

My best guess is A. Positional vertigo

Loss of labyrinth function can include both hearing and balance but the attack of only 1 minute is very typical for positional vertigo.

In Meniere disease the attacks last longer (1-8 hour according to Kaplan).

In both, recurrency is common.

  #7

A benign positional vertigo







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