QuestionSBA
QuestionChoice
Thiamine (vitamin B1) deficiency is often seen in individuals with chronic alcohol exposure. It manifests itself as a triad of confusion (demonstrated by this man not knowing where he is), ataxia (seen in the man's clumsy movements) and ophthalmoplegia (seen in the man's nystagmus). This triad is known as Wernicke's encephalopathy.
10025555
a
Vitamin B1
QuestionChoice
Deficiency in vitamin A leads to problems with sight and visual loss. By contrast, this man demonstrates confusion (not knowing where he is), ataxia (clumsy movements) and ophthalmoplegia (nystagmus). This triad is known as Wernicke's encephalopathy and is due to B1 deficiency, secondary to chronic alcoholism.
10025559
e
Vitamin A
QuestionChoice
Deficiency of vitamin C leads to scurvy, with symptoms of gingival hypertrophy and bleeding. By contrast, this man demonstrates confusion (not knowing where he is), ataxia (clumsy movements) and ophthalmoplegia (nystagmus). This triad is known as Wernicke's encephalopathy and is due to B1 deficiency, secondary to chronic alcoholism.
10025556
b
Vitamin C
QuestionChoice
Deficiency of vitamin B3 leads to the condition pellagra, recognised by the triad of dermatitis, dementia and diarrhoea. By contrast, this man demonstrates confusion (not knowing where he is), ataxia (clumsy movements) and ophthalmoplegia (nystagmus). This triad is known as Wernicke's encephalopathy and is due to B1 deficiency, secondary to chronic alcoholism.
10025557
c
Vitamin B3
QuestionChoice
Deficiency in vitamin D leads to osteomalacia or rickets, where bones are weak due to inadequate mineralisation. By contrast, this man demonstrates confusion (not knowing where he is), ataxia (clumsy movements) and ophthalmoplegia (nystagmus). This triad is known as Wernicke's encephalopathy and is due to B1 deficiency, secondary to chronic alcoholism.
10025558
d
Vitamin D
Concept
Chapter
2693
5850
Wernicke's encephalopathy
Topic
141
Neurology
17509
A 52 year old male presents to the emergency department with his wife. He states that he does not know where he is, and is seen stumbling around the department clumsily. On examination he is found to have bilateral nystagmus. His wife reports that he has been suffering from chronic alcoholism for at least twenty years.

Which of the following vitamins is most likely to be deficient in the condition this man is exhibiting?
a