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NBME 24 Answers

nbme24/Block 3/Question#41 (15.5 difficulty score)
A 30-year-old man develops tingling around ...

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 +8  upvote downvote
submitted by m-ice(272),
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 +4  upvote downvote
submitted by madojo(122),

The main ingested seafood toxins we should know (246 Fa2019)

Histamine, Tetrodotoxin, and Ciguatoxin. Histamine - spoiled dark meat (tuna, mahi mahi) causes like an anaphylactic reaction because the bacterial toxin converts histidine --> histamine. Tetrodoxin - seen in this Q, pufferfish - blocks Na channels NO depolarization Ciguatoxin - reef fish barracuda - opens Na channels so CONTINUAL depolarization

For last 2 no cure, supportive only