Which test is most commonly used to diagnose benign paroxysmal positional vertigo?

Which test is most commonly used to diagnose benign paroxysmal positional vertigo?

• A. Romberg test
• B. Fukuda stepping test
• C. Dix-Hallpike test
• D. Head impulse test

Answer: (C)

The Dix-Hallpike maneuver is the test used to diagnose benign paroxysmal positional vertigo. It works by moving the head into positions that move the displaced otoconia within the posterior semicircular canal, which is the canal most commonly involved in BPPV. When performed correctly, this repositioning triggers brief vertigo and a characteristic vertical-torsional nystagmus if the posterior canal is affected. The presence of vertigo with this specific type of nystagmus, along with latency and short duration that fatigues with repeated testing, makes the finding highly diagnostic for BPPV. Other tests you might see—like a Romberg test or Fukuda stepping test—check balance and proprioception rather than provoking the canalith movement that causes BPPV, so they don’t confirm this condition. The head impulse test assesses the vestibulo-ocular reflex during acute vestibular loss and isn’t specific for diagnosing BPPV.

The Dix-Hallpike maneuver is the test used to diagnose benign paroxysmal positional vertigo. It works by moving the head into positions that move the displaced otoconia within the posterior semicircular canal, which is the canal most commonly involved in BPPV. When performed correctly, this repositioning triggers brief vertigo and a characteristic vertical-torsional nystagmus if the posterior canal is affected. The presence of vertigo with this specific type of nystagmus, along with latency and short duration that fatigues with repeated testing, makes the finding highly diagnostic for BPPV.

Other tests you might see—like a Romberg test or Fukuda stepping test—check balance and proprioception rather than provoking the canalith movement that causes BPPV, so they don’t confirm this condition. The head impulse test assesses the vestibulo-ocular reflex during acute vestibular loss and isn’t specific for diagnosing BPPV.