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submitted by yotsubato(520),

This question is bullshit. The woman would most likely be vaccinated to Strep pneumo, especially if she had a splenectomy.

E coli is also an encapsulated bacterium that causes pneumonia, so that is more likely IMO.

sugaplum  I agree with you, only possible logic for their answer: the qualifier asplenic makes the "ShIN" pathogens more likely, even though Ecoli can cause gram negative sepsis and DIC. FA 2019 pg 127 Also it says s pneumo causes sepsis specifically in asplenic patients Pg 136 +  
lmfaoayeitslit  To be honest, the only reason I got this right (because I really was thinking E.Coli as well), is that I ended up remembering the MOPS part of the Sketchy, and I couldn't remember if he said that it was the number 1 cause of all of them or not, and ended up clicking it. It's pretty shitty they don't offer explanations for these. +  
merpaperple  I thought this too but it seems like Strep pneumo is just more specifically associated with infection in asplenic/sickle cell patients than E. Coli is. Just one of those classic associations. There's a sickle in the Sketchy Strep pneumo sketch, vs. no sickle in the E.Coli sketch. +  
drzed  E. coli causes pneumonia by aspiration, for which this patient had no risk factors. For USMLE, if they don't say the patient is vaccinated, you can assume they are NOT. Just because she has a history of splenectomy following trauma does NOT mean she had to been vaccinated--don't fill in the history for the patient, only use the information they give you. +