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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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FA pg 2.17 oTo much ygiaonxotne cna cseau eref liraadc megdaa eigaldn ot yanotpeithr of tumtiyearpr

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mmm21  kaOy i ghmti eb dedtarre, ubt yhw i nctaโ€™ nreausndtd thta yeth r akgnsi btoua the tnghi tath si edgdaam ? ๐Ÿ˜‚๐Ÿ˜‚ +8
sahusema  elSryis!ou heT tqnsouie ssay "hte glao fo tnateertm si hte oettnropci of hcihw of teh lilgnofow cerr?ssut"tu If oot much O2 dagasem eth it,earn ohw si shti rntmaette uesdppso ot be rtpiveecot ot eht en?atir +2
ratadecalle  I hitkn too hmuc yegnox uowld be wthi teh rtlonvetai gnhavi a ighh F2iO nettigs, hhciw yteh 'ntdo nonmite heer utb Im' nggsiseu ahtst the gtnhi ehe'yrt nocltolnrig to voaid geoxny ttic?yxio +2
burak  yeht dt'din giev eht tpineat f2oi ,0%10 oituqens kssa eth oaresn rof .ti tbu ni a yrev dspitu ywa +31
naught  meneSaltppul O2 yma asol eascu hbconrynroamuplo ydasapsil ro anctvnaeiurrtilr raeehrhgmo meaig(lnr imta,xr ceaoldt in uauvrbltsiecnr zeon NOT ricodoh lx)psue +1
fkstpashls  9%259- snt'i hhgi, tub 'its unoegh to teg gvyihntere lese one.eagtyxd scaeuBe 'tsi tno %100 high folw eth teanris 'ndot ruseeocvzailra-v dna edla ot eeh/amearogmdag,hr dan ihst elki t.tah +1
soccerfan23  nI hroet ..edrsoht.w. isutoneq si bllaicyas sinkga why eyht vage teh pnetiat a 2fio of 9%-952 teiadsn of .%100 The anesor si sebcuae 0%10 egnyxo owldu dale ot typhoenitar fo rtruitmap.ey Teh erwlo 5299%- gxeyno slveel ecotprt hte irtane rofm agmde.a heT odingwr fo hte steouniq kcssu oth oim. +3
randi  AF 1290 21p0 rnued eerF aaclrid nriyuj xsemapel +
umpalumpa  from AETURN i0wtD200t%02atea202noon2ew12ev/xR:vei02usaspnlroahgectO#shteg;tsr%~tnDt%lh02wsaa&anrtscct/xh.0%ps%%02tgrt07eh4i2em%xse=/0s2d=Ie1ayt%a2.%io%ned%u2t,enaS%u%iia.%ag.t,r2e/0nt7ian0ox:ye:t:222mrh0o%wSmahu5O%Ph Sra elve etenrc iuetdss ahev wnsho a htnirolepias wneeteb a nhyigogexh- outatsrina dan O.PR tI sseme ttha a Oa;t2S&9g%3 nareiecss eht irsk for rveees ROP dan eedn fro paetyrh +

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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 +2  upvote downvote
submitted by โˆ—mcl(671)
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ccri"hon hgih xnoyeg saniurtstao anc yreevlasd ffaetc ungl and eye cesooutm of mrtpere n"nfi.satnlik

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 +0  upvote downvote
submitted by โˆ—divya(75)
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greae itwh r.'uekhb yeatr iygntr ot sya atth rmariyp olga of meatttenr ithw ptuleaslpenm o2 is ot eamk ruse eehrt si no natleir agd.mae

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submitted by โˆ—ergogenic22(401)
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hyw is roocnpttie fo hte orhdioc uxeps,l orfm trvaireaurcntnil urrtepu rodacsnye ot nlgiaemr amrxit ehrgmraohe nto a ioesslbp nea?rsw

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whoissaad  esy emsa etosunq,i thob yrteatpnhio nda urrectviritalnna emrgheaom cna urocc edu to hgih goexyn .llves.e +
cienfuegos  I elyantskmi oehsc irdooch uslpex oot, sebad no ikwi esems hist is most mmncoo ascue of IVH ni temr antn:isf HVI in hte rmetpre nrbia ulausly rsaesi form het rmeigaln txiarm aesherw VIH in het mert instafn igirtsnaoe morf teh dircooh uls.xep re,vewHo ti si yltcrriuaalp cnoomm ni tmarerupe siantnf or shteo of veyr wol trhib h.twei.g. oMst itrluevrnrtaainc regsheorahm orccu ni teh sifrt 72 ohrsu efrat r.itbh Teh skir is readicsen tihw use fo lreraaocteoxrp renemmab ieoaontxygn in mtrerep nfa .sntisciipalrutwpnna/.k#boikr/aorre.tit/eg/iterInvadrs_hie:Bwmiegaheh +
burak  ocorihd peslxu si dffenreit ntah egmanril xtrima +
meryen13  neiarlt hhoagemrre si eorm nmomco htat VIH eevn if you kinth that ti udocl aaedmg ciohdor laceps raodscyne to gmlarnei taxirm mghoraehr. ep3i1w/enm.t1dnvs1iww.:./08unl6g./pc/tmboh4bh +


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 -4  upvote downvote
submitted by โˆ—lilmonkey(63)
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neyAon neidarg ihts suionetq

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lollll i got this right because of This is Us.

+/- alexv0815(10)

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