Deck 21: Vestibular Disorders

Question 1

A patient has a confirmed diagnosis of unilateral vestibular hypofunction.The chief complaint of the patient is dizziness and blurred vision with head movements.What type of exercise would be MOST appropriate to target the patient's chief complaint?

A)Habituation
B)Postural stability
C)Canalith repositioning
D)Vestibular adaptation

Answer 1

D

Question 2

What is the slow component of an acute spontaneous horizontal nystagmus caused by?

A)Asymmetry of firing rates between peripheral vestibular systems
B)Response from the parapontine reticular formation
C)Response of the velocity storage system
D)Inhibitory cutoff of the healthy peripheral vestibular system

Answer 2

A

Question 3

The Dix-Hallpike test with the left ear down elicits a transient up-beating nystagmus with a left torsion.What is the location and mechanism of benign paroxysmal positional vertigo?

A)Left posterior semicircular canal cupulolithiasis
B)Left superior semicircular canal canalithiasis
C)Left superior semicircular canal cupulolithiasis
D)Left posterior semicircular canal canalithiasis

Answer 3

D

Question 4

The Dix-Hallpike test with the right ear down elicits a sustained up-beating nystagmus with a right torsion.Which is the MOST appropriate treatment for this patient?

A)Liberatory (Semont)maneuver for the right posterior semicircular canal
B)Canalith repositioning maneuver for the right posterior semicircular canal
C)Liberatory (Semont)maneuver for the right superior semicircular canal
D)Canalith repositioning maneuver for the right superior semicircular canal

Question 5

A patient reports a sudden onset of vertigo 3 weeks ago that lasted 4 to 5 days.A corrective saccade is noted with the right head impulse test and a left beating nystagmus is elicited with the head-shaking induced nystagmus test.After initiating vestibular rehabilitation,what is the MOST likely recovery time?

A)Two to three sessions
B)Five to six sessions
C)Six to eight weeks
D)10 to 12 weeks

Question 6

A right-beating nystagmus is elicited with the head-shaking induced nystagmus test.What does this response indicate?

A)Bilateral vestibular hypofunction
B)Right unilateral vestibular hypofunction
C)Left unilateral vestibular hypofunction
D)Central vestibular lesion