…is used in the acute vestibular syndrome — continuous vertigo with spontaneous nystagmus, nausea and difficulty walking that has lasted hours to days — to distinguish vestibular…

…persistent unsteadiness or ataxia without clear spontaneous nystagmus Cerebellar or brainstem infarction, intoxication, Wernicke's encephalopathy, other central disease Neurological examination, gait and truncal stability…