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NBME 22 Answers

nbme22/Block 1/Question#38 (25.8 difficulty score)
A newborn born at 26 weeks' gestation has ...
Dipalmitoyl lecithinπŸ”
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 +16 
submitted by adong(94),

literally know every single name they can possibly call this

djtallahassee  literally a new name every nbme +9  



 +7 
submitted by atstillisafraud(187),
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mierPe sha on trfauncsat

ngonisteinA II - adgeeretn in ooihmaplvey

aytillDomip cinihetl aka lnosyaipdytaiohpmlliphdetiolhc glnu ctunatfsar

nitloPdptaohhosliiys p-eia4sosh,tbph5 aak IP2P qG cpoeertr ywapaht

sPnoeireipyhsahtld vnoe-dlvi in tiicnsirn tsisopoap henw xesdope on axtelacreulrl urecfssa

hgenlminpiSyo - mcsoeosp imynel nad sola has leors in silang tcritdnonas,u isapoo.stp Le:tiichn iSheioypmgnln irota g2;t& sctenidai umaert telfa gslun.

endochondral1  how are we supposed to know that dipalmitoyl lecithin is the same thing as dipalmitorylphosphatidylcholine +6  
qfever  FA 2019 page 647 Pulmonary surfactant is a complex mix of lecithins, the most important of which is dipalmitoylphosphatidylcholine (DPPC). Also: Screening tests for fetal lung maturity: lecithin- sphingomyelin (L/S) ratio in amniotic fluid (β‰₯ 2 is healthy; < 1.5 predictive of NRDS) +16  



 +3 
submitted by paperbackwriter(102),

I think the reason they are being such little turds and calling it dipalmitoyl lecithin instead of DPPC is because there's a thing called the lecithin-sphingomyelin ratio which needs to be high in order to indicate that the fetal lung has matured. Both lecithin (DPPC) and sphingomyelin are present in fetal lungs, but the amount of lecithin shoots way up towards the end of gestation, raising the L:S and indicating lung maturity.

mutteringly  naw they just turd +1