MCQ – 88794

Question

A 52-year-old alcoholic notices a skin rash on his chest, and also has symptoms of diarrhea and abdominal pain. On examination, he has a scaly and pigmented rash on the sun-exposed areas of his skin, the abdomen is soft, and his short-term memory is impaired. He has dermatitis, diarrhea, and dementia syndrome. Which vitamin deficiency causes the effects

A.

niacin

B.

thiamine

C.

pyridoxine

D.

vitamin C

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