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NBME 21 Answers

nbme21/Block 1/Question#14

A 21-year-old man is brought to the emergency ...

Streptococcus pneumoniae

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submitted by aesalmon(38),

Splenectomy = more susceptible to encapsulated organisms

I put E. coli as its encapsulated but that wasn't the most right answer I guess?

pippylongstock  This question is asking about the ‘S’ of FA Mnemonic for S. Pneumonia “MOPS”. Strep pneumo is the most common cause of sepsis in adults. +1  
emmy2k21  MOPS stands for meningitis, otitis, pneumonia, and SINUSITIS. It doesn't stand for sepsis. My guess as well is which is "more correct". It's about being able to identify encapsulated organisms and the spleen's role in immunity. Ha I chose E coli as well. +1  
et-tu-bromocriptine  emmy2k21 is correct, the S is for sinusitis. I was between E.coli & Strep Pneumo, but then recalled Sketchy putting the sickle on the 'encapsulated' knight in the Strep Pneumo video; Strep Pneumo is more associated with infecting sickle cell "functionally asplenic" patients. +  
aneurysmclip  You could also recall that before splenectomy(ik this is a emergency splenectomy) we would want to give an encapsulated vaccine like the pneumococcal vaccine. this pushed me towards strep over ecoli +  


thereis a ques in uworld ....... splenectomy and vaccinne that needs to b given i back then kept ecoli and bt was confused back then

i came to this conclusion strep> nesseria> hemophilus........ if these arent there in options then go for other options if question stem doesnt point to any specific organism

+/- minion7(0),