NCS Vestibular Rehabilitation

Question 1

Which semicircular canal is most commonly affected in benign paroxysmal positional vertigo (BPPV)?

Accepted Answer

Posterior semicircular canal

Answer

Anterior semicircular canal

Answer

Horizontal semicircular canal

Answer

Superior semicircular canal

Question 2

The Dix-Hallpike test is the gold standard for diagnosing BPPV affecting which canal?

Accepted Answer

Posterior semicircular canal

Answer

Horizontal semicircular canal

Answer

Anterior semicircular canal

Answer

Cochlear duct

Question 3

What type of nystagmus is characteristic of posterior canal BPPV when performing the Dix-Hallpike test?

Accepted Answer

Upbeat-torsional nystagmus beating toward the affected ear

Answer

Pure horizontal, direction-changing nystagmus

Answer

Downbeat-torsional nystagmus toward the unaffected ear

Answer

Purely vertical downbeat nystagmus

Question 4

The Epley canalith repositioning maneuver for posterior canal BPPV guides canaliths from the posterior semicircular canal back into the:

Accepted Answer

Utricle

Answer

Endolymphatic sac

Answer

Anterior semicircular canal

Answer

Cochlea

Question 5

The head impulse test (Halmagyi-Curthoys test) assesses the integrity of which reflex?

Accepted Answer

Vestibulo-ocular reflex

Answer

Vestibulo-spinal reflex

Answer

Optokinetic reflex

Answer

Cervico-ocular reflex

Question 6

A patient with acute unilateral vestibular neuritis would most likely demonstrate which finding on examination?

Accepted Answer

Positive head impulse test when the head is thrust toward the affected side

Answer

Bilateral symmetric caloric weakness

Answer

Spontaneous nystagmus beating toward the affected side

Answer

Pure vertical downbeat nystagmus

Question 7

Which characteristic distinguishes peripheral vestibular nystagmus from central vestibular nystagmus?

Accepted Answer

It is direction-fixed and suppressed by visual fixation

Answer

It may be purely vertical

Answer

It is direction-changing with lateral gaze

Answer

It is not associated with any hearing symptoms