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Retired NBME 21 Answers

nbme21/Block 4/Question#33 (reveal difficulty score)
A female newborn delivered at 26 weeks' ...
Retina ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
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 +8  upvote downvote
submitted by โˆ—hyoscyamine(59)
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AF gp .127 Too hcum ngxytneoaio anc euasc eerf rldciaa agmaed dieangl ot ipehyntrota fo yrmuiatrtep

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mmm21  kaOy i hgmit be tdeed,rar btu hyw i cnatโ€™ drusenntda ttha htye r sgnika utoab teh tnghi ttha si eamagdd ? ๐Ÿ˜‚๐Ÿ˜‚ +8
sahusema  eioySlrus! heT neiusotq ssay hte" gola of rateetntm is hte otptoceirn fo hhwic of eth iflowolgn s"sre?tuctru fI oot cumh 2O gmadeas eth aetr,in owh is tshi tetrantem psodueps ot eb etrtvoecpi to teh tire?na +2
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naught  aluepSptneml 2O amy also aecsu punhnmrooyaclbro alysdpsai or nunaretriicvlrta eemrgohhra ergl(naim xrtia,m daolcet ni ranbiuvcrtseul oenz NOT chioord eplu)sx +1
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soccerfan23  nI rehot edowt.r.sh.. sieqntou si slaylabci kignas hyw tehy evag eth eatpnit a fio2 fo 925-%9 niesadt of 0.10% eTh rosnea is euescba 001% xnyeog wuldo eald ot enyhtritopa fo m.rieutpyrat hTe rlewo 2%995- xnoyge elsevl rcpeott hte atreni ormf edmag.a The irngodw fo hte osqnuiet uckss hot mio. +3
randi  FA 0912 0p12 rdnue eeFr liaradc jnuryi xeemalps +
umpalumpa  ormf RUAETN 2,vdse7t%itaot..axu0Swpa=r2%ieasha0t0cnhns270OP,u=:ihmnh0t/u%ea05S&ioeal%pmtooga%ngtx#2tterrhaw:2y0~Ote0n1wts0onwi0:tevih%usDema/24rr0eaerga2c%222%%e%/%.tx:Ilit22%2n0/%0x1;%as2ttnRa%.s0gce2htsehns2e2dyD%o lerSav e etnrec iutssed haev nhwso a alpiorthnise eebntwe a h-noexighgy usitoaatnr nda ROP. tI semes ahtt a &g3a%OSt2;9 carsesnei hte irsk rof sveere OPR dan need rof therayp +

Wikipedia pathophysiology section of "retinopathy of prematurity" explains this pretty well. Retinal vessel maturity is incomplete in premature infants--the process of continuing this maturation in these babies is directed towards growth of vessels in O2 deprived areas, but if O2 is being supplemented, this process is hindered. Therefore when O2 supplementation is removed, excessive vessel proliferation going into the vitreous humor (not where it is supposed to be) leads to retinopathy of prematurity (defined as "disorganized growth of retinal blood vessels leading to scarring and retinal detachment")

+7/- beanie368(27)

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submitted by โˆ—mcl(671)
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"riccohn hihg nogyxe austsroatni anc rvysdeeal ftefca ungl nad yee cosmutoe fo emteprr .a"nits nflnik

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submitted by โˆ—divya(75)
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erage thwi yrekt'hrue a.b girtyn ot asy that yprriam laog fo tetmearnt hiwt lenasetlppum 2o si ot ekma srue herte is no eintlar mdgeaa.

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submitted by โˆ—ergogenic22(401)
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hwy si erntocopti fo the chodori ,lxsepu omfr nritrlciuetvrnaa urrpteu ocresdany ot neilmagr maitxr eharheogrm otn a pbilsose rneas?w

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whoissaad  yse msae i,qutoens hbot nithpyrtaoe dna tniaitlurnvracer mgearmhoe acn ccoru edu to ghhi oyengx lesel..v +
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burak  chrodio lxsuep si dfifrntee thna raelmngi raixmt +
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 -4  upvote downvote
submitted by โˆ—lilmonkey(63)
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yenAno edanirg htis euioqstn

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lollll i got this right because of This is Us.

+/- alexv0815(10)

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