The Hallpike maneuver was designed to:
A. Elicit the vestibulo-ocular reflex.
B. Rupture the cupula.
C. Provoke maximal movement of otoconia in the horizontal semicircular canals.
D. Provoke maximal movement of otoconia in the posterior semicircular canals.
E. Treat dizziness associated with central vestibular lesions.
ANS: D
Rationale: The Hallpike maneuver was designed to provoke maximal movement of otoconia in the posterior semicircular canals as a diagnostic test for Benign Paroxysmal Positional Vertigo (BPPV). Normally the otoconia should be confined to the macula and not in the horizontal semicircular canal. If the Hallpike maneuver elicits nystagmus and vertigo after a few seconds latency, this indicates otoconia in the horizontal semicircular canal.
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