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A 6 year old male child is brought into the pediatrics clinic. According to his parents he has been having diarrhea and a red rash. They also report that at times, he is "somewhat uncoordinated in his walking." A thorough evaluation does not reveal any nutritional deficiencies. Which of the following do you expect to see?

A. Elevated neutral amino acid in his urine
B. Reduced levels of tryptophan in his urine
C. Lead poisoning
D. A history of viral infection in the gastrointestinal tract
E. An autosomal dominant condition upon genetic analysis
bb
Its Hartnup's...but I don't know which to pick..A or B, they both refer to the same thing
answer is AAA...B can't be right..coz he is not reabsorbing tryptophan.. so it must be high in urine...but notice he is normally absorbing tryptophan from gut.........Thanks