NBME 21 Retina (NBME Answers)

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Retired NBME 21 Answers

nbme21/Block 4/Question#33 (reveal difficulty score)
A female newborn delivered at 26 weeks' ...
Retina 🔍 / 📺 / 🌳 / 📖
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+8 upvote downvote
submitted by ∗hyoscyamine(59)

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FA gp .127 oTo chum nixyatngooe nca ecusa refe iladcar emaagd ledgian to onehtyaprti fo tutrpemyiar

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mmm21 aykO i htimg be adrdreet, tub hyw i n’atc deadsurnnt that tyeh r akngis uabot hte night atht si aedmadg ? 😂😂 +8

sahusema losy!Sreui ehT iqusneot yass e"ht aolg of rtetnaetm si eht nreotpiotc of whhic of teh filwnoolg tetrusu"c?rs If oot umch 2O asademg eth ri,tnea how si htis antrmette dpsuesop ot eb eertvpcito to the e?inrat +2

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burak htey nddi't give eht tptenia iof2 %00,1 qeotsuin kssa hte serona ofr .it btu ni a vrye tpdius yaw +31

naught mueplneapStl O2 aym asol euasc rhoauorbnncmloyp yipadsals or ntrlaiiavtrrceun egmrahohre n(lemagir a,itxmr cetaold ni uarrbntucvlsie nzeo TON oocrihd upl)sex +1

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soccerfan23 In oehtr wr.dt.hs.eo. esouiqtn is asalyclbi snkgai ywh hyet vgea het ettipan a i2fo of -52%99 einadts of 00%1. The aosenr is ebcaesu 001% ognyxe ldowu dela ot htorpnieyta fo pay.uemrtitr ehT olrew 99%2-5 genyxo elvles octrtpe het einrat from .megdaa Teh rngdiwo fo hte tunqiseo sukcs oht io.m +3

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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 ∗mcl(671)

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nrh"ocic ihhg xneogy artsiatonsu nac vsrleaedy ceaftf glnu dna eey moscetuo fo eerprtm n.a"f ntsinkil

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submitted by ∗divya(75)

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geear htiw khab yeutr.'re ngtyri ot asy hatt ryrmpia ogla of rtetematn tiwh pelstlaumpen 2o is to emka srue ehtre is no etalrin gaade.m

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submitted by ∗ergogenic22(401)

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yhw si ronottpcie fo teh rdhicoo e,psxlu form cntaieurvranirlt rupretu ycsdroena to gmanelir tirmax rheraghmeo otn a espiobsl ?neraws

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submitted by ∗lilmonkey(63)

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neoyAn edrngia hsit snoqiute

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SPOILER ALERTTTTTTTT

lollll i got this right because of This is Us.

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