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submitted by famylife(33),

This is strep pneumo, which has alpha hemolysis (green)

breis  How is this differentiated from Strep Virdans which is Optochin Resistant? Because Strep Pneumo would also be inhibited by optochin* +  
mjmejora  its strep viridans. Strep viridans has a "protected chin mask" and strep pneumo is "exposed" in the sketchy. +  


submitted by seagull(354),

https://en.wikipedia.org/wiki/Blastomycosis#/media/File:Blastomyces_dermatitidis_GMS.jpeg

I believe this is actually disseminated Blastomyces due to the "Broad Based Budding" as seen in the picture.

seagull  However, given the stain and some of the features I now see that this is most likely Crypto. THey like similar. my bad +5  
mjmejora  oh what a catch! I also thought this was Blasto until you explained otherwise +  


submitted by neonem(227),

NRTIs are the main HIV therapy drug that can cause bone marrow suppression (not as common with NNRTIs). This class includes zidovudine, didanosine, emtricitabine, lamivudine, stavudine, abacavir. Zidovudine is most known for this side effect.

Nelfinavir = protease inhibitor azithromycin = aminoglycoside (not really used for HIV) pentamidine = another antimicrobial, mostly used for pneumocystis I think? Lamivudine = another NRTI but less known for bone marrow suppression

adisdiadochokinetic  Azithromycin is a macrolide, not an aminoglycoside FYI, and its use in HIV is primarily as prophylaxis at very low CD4 counts for, among other things, the mycobacterium avium complex. +2  
nbmehelp  How would we have known to choose Zidovudine over Lamivudine tho +1  
mjmejora  @nbmehelp the sketchy with Princess Izolde (Zidovudine) eating bone marrow was my only tip off +1  


submitted by doodimoodi(2),

Did no one notice that the Odds ratio on the top left is wrong? Am I missing something? If you calculate it, it's 6 just like the top right one....

mjmejora  thats actually really funny +  
yex  Because I said so, applies here... :-/ +  


submitted by uslme123(7),

This question makes no sense to me. She has an extremely low opening pressure yet has signs of increased intracranial pressure. Did they mean to put 32 cm H20?????????

uslme123  Standard lab values are incorrect, way to go NBME. +1  
wutuwantbruv  I think they mean to put mm Hg. Normal CSF pressure is about 100-180 mm H20 which equates to about 8-15 mm Hg. +  
alexb  I lost a bit of time wondering about that ugh lol +  
mjmejora  I thought there must be an obstruction in the ventricles somewhere preventing csf from getting to the spine. so pressure is low in spinal tap but in the head it must be really high. +  


submitted by mousie(74),

why does treatment of hypothyroid (with levothyroxine I'm assuming) increase risk for myopathy? I chose it simply bc its a common adverse effect of statins but I don't really understand how treating hypothyroidism at the same time would have anything to do with it ??? help please!

yb_26  They are just asking about side effect of statins, not about treatment of hypothyroidism +1  
mjmejora  Hypothyroidism is just a red herring. +  
ususmle  statins cause both hepatotoxic and mypopathy so I want for hepatotoxic:( I thought usmle expects different stuff +