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Retired NBME 17 Answers

nbme17/Block 1/Question#19 (reveal difficulty score)
A 20-year-old woman comes to the physician ...
Mannose-binding (type I) fimbria ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
tags: micro

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submitted by โˆ—bingcentipede(359)
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The different E. coli strains:

-P pili/fimbriae (specifically, **mannose-binding type I fimbria): cystitis and pyelonephritis (UTIs) -K capsule (composed of sialic acid): pneumonia, neonatal meingitis -LPS endotoxin (O157:H7 strain): septic shock (EHEC specifically) -Heat labile toxin, heat stable toxin: increases cAMP & cGMP, respectively (watery diarrhea; ETEC specifically)

I don't think E. coli has a pyrogenic superantigen toxin; this might just be S. aureus thrown in here.

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