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Welcome to louisville’s page.
Contributor score: 12

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 -2  (nbme24#31)
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ewsAr:n SVR esncie;adr RPV ercdde;ase PCWP das.cereni

 +14  (nbme20#36)
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unleMelyeb-the dseanti fclae raesm eldreve neuomrus rihuotpslne (but otn nya rosamngs)i. aSlglhei is ocsrsleol hewn dtenasi wiht yethneeml l;ube E ilco ntaiss eblu htiw tlenyheem uble asbeceu it sermftne staoc.el

sympathetikey  E. coli stains green (just fyi) otherwise, perfect. +13
chandlerbas  only E coli stains green, all other lactose fermenters stain purple/black (just fyi) otherwise, perfect. ;) FA144 bottom +4
dmotav  I think this is actually a separate concept – E. coli stains "metallic green" on eosin methylene blue agar, which is in the E. coli sketchy and first aid. However this question is referring to the methylene blue test on a fecal smear. From what I can gather, this test will be positive (indicated by presence of neutrophils) in cases of invasive diarrhea (i.e. shigella, salmonella, enterohemorrhagic E. coli). The test will be negative (no neutrophils) in cases of diarrhea caused by toxins (cholera, enterotoxigenic E. coli, giardia, viral diarrhea). So even though E. coli can present with fecal PMNs (if it's the enterohemorrhagic type), I guess that's less likely than shigella? source: +3

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