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NBME 18 Answers

 +3  upvote downvote
submitted by โˆ—baja_blast(219)
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'Im kieltpsac fo isht gibne oxiTc Scokh yomSd,ern as the hsar in STS si uasylul scedeibrd as gnebi misalri to that fo a eevesr burunsn nd,a ibessde er,vfe eerht ear on ehotr dcasoeitas SST mmyssotp p,o(tynoenhis ohks,c igo,vnitm baormlna s,LTF .tec) ,Meoorevr stiueoqsn aubto SST yasluul nmoneit lnasa apnicgk or a nifel-t moatpn, hbot fo hhwic ear ensatb in htis heetr arey lod b.oy ouY nca dare buato STS in FA 2901 on p. 5.13

I knthi 'tsi ermo yekill ttha tshi is Bllouus igmopeIt, ihcwh is iomnedent yfirble no AF 1290 .p 074 as ebngi dacues by .S uAuser.

rEihte wy,a hobt ear ceauds yb S. sAuuer os vnee if uyo hgutoht siht asw SST uyo odlush llsit tge hte ithgr nrsawe r.hee

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cbreland  I agree with this explanation. Thought that they would make us decide between S aureus and GAS (bullous v. non-bullous impetigo) but seems like they went easy on us +1
jer040512  It sounded more like Scalded Skin Syndrome to me. I saw this in Amboss and thought i'd post it here. "SSSS belongs to the spectrum of diseases mediated by specific staphylococcal toxins, which also includes bullous impetigo, toxic shock syndrome (TSS), and Staphylococcus aureus food poisoning. Unlike TSS, SSSS does not have systemic manifestations (e.g., liver, kidney, bone marrow, and CNS involvement)!" +9
jer040512  It sounded more like Staph Scalded Skin Syndrome to me. Here's what i found on AMBOSS. SSSS belongs to the spectrum of diseases mediated by specific staphylococcal toxins, which also includes bullous impetigo, toxic shock syndrome (TSS), and Staphylococcus aureus food poisoning. Unlike TSS, SSSS does not have systemic manifestations (e.g., liver, kidney, bone marrow, and CNS involvement)! +
jer040512  It sounded more like Scalded Skin Syndrome to me. I saw this in Amboss and thought i'd post it here. "SSSS belongs to the spectrum of diseases mediated by specific staphylococcal toxins, which also includes bullous impetigo, toxic shock syndrome (TSS), and Staphylococcus aureus food poisoning." +
jer040512  I thought this was Scalded Skin Syndrome. Here's what I got from AMBOSS. SSSS belongs to the spectrum of diseases mediated by specific staphylococcal toxins, which also includes bullous impetigo, toxic shock syndrome (TSS), and Staphylococcus aureus food poisoning. Unlike TSS, SSSS does not have systemic manifestations (e.g., liver, kidney, bone marrow, and CNS involvement)! +
plaguedbyspleen  Staphylococcal scalded skin syndrome differs from bullous impetigo. Both are blistering skin diseases caused by staphylococcal exfoliative toxin. However, in bullous impetigo, the exfoliative toxins are restricted to the area of infection, and bacteria can be cultured from the blister contents. In staphylococcal scalded skin syndrome the exfoliative toxins are spread hematogenously from a localized source causing widespread epidermal damage at distant sites. +1



 -4  upvote downvote
submitted by โˆ—motherhen(68)
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Sudedn toesn fo evseer uenicfitso tsspmoym geussstg chxTicoSko- rdnSmoye Toxni of hpatS seur.Au ihTs is otms mmocnoly nsee ni otmansp ltef in orf goln oedpsir fo emit or aansl aigpknc of ln.eesesodb A iivtespo srane tculeru fo TTSS pogcruind S. Aureus owlud ptopsur stih dnis.goias

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jaramaiha  This isn't TSST but rather bullous impetigo infected w/ S. aureus. FA20 pg479 at the top. This question was mentioned in AMBOSS as well. +1
jhoplite  ^^^ Agreed, to add to @jaramaiha, "Bullous impetigo is a superficial skin infection caused by the same toxin-producing strains of S. aureus associated with SSSS. Bullous impetigo most often occurs in young children and presents with vesicles, flaccid bullae..." +1



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