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NBME 24 Answers

nbme24/Block 4/Question#42 (reveal difficulty score)
A 40-year-old man who recently immigrated to ...
Adenine ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
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 +16  upvote downvote
submitted by โˆ—colonelred_(124)
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Heโ€™s presenting with classic signs of vitamin B3 deficiency (niacin); niacin is required to form the cofactor NAD+ (nicotinamide adenine dinucleotide).

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bigjimbo  B3 Niacin deficiency = Pellegra = diarrhea, dermatitis, dementia death. = Niacin combines with adenine to become NAD+ https://www.aocd.org/page/Pellagra +12
cbreland  Noted lack of niacin, not making NAD. Did not think about what NAD stands for, instead went down a rabbit hole +18



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