<prompt> Which of the following is true about Wernickes encephalopathyExtrapyramidal symptomsAuditory hallucinationsVagus nerve palsyPresence of horizontal nystagmus  <response>: Answer- D. Presence of horizontal nystagmusWernickes disease is a common and preventable disorder due to deficiency of thiamine.It is commonly seen in alcoholic patients with chronic thiamine deficiency.Wernickes encephalopathy is characterized by clinical triad ofGlobal confusionOphthalmoplegraAtariaIt includes horizontal nystatmus on lateral gaze lateral rectus palsy.Gait AtaxiaIt results from combination of polyneuropathy, cerebellar involvement and vestibular paresis. 