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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AF gp 172. oTo hcmu nanooytgxei nac acseu rfee railcda aegadm iglaned to ntyiheapotr fo apmutrrtyie

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mmm21 akOy i gtmhi eb ,rtdarede but ywh i c’nta drtsaenudn ahtt yhte r anskgi utaob hte nhigt ttah si eadamdg ? 😂😂 +8

sahusema Seyurlois! eTh noiesutq sysa "eht loag fo mnttearet si eth priotntcoe of ichwh of eth ogwllifon ssu"cr?rteut fI oot uhmc O2 aaedgms het ia,ntre hwo si htis eermttnat spodseup ot eb eevorpcitt to eth it?nare +2

ratadecalle I hkitn too hcum xeonyg uwldo eb wtih teh valirentot invagh a hghi OiF2 tet,gnis hcwhi hyet nd'ot miotnne ereh utb I'm snugiseg hastt eth thign eytr'eh tronnloicgl ot ivdao oygxne tcxti?oiy +2

burak yeth dd'itn gvie teh ntatpei if2o 00%1, tqisouen skas hte aernos rfo ti. btu ni a rvey siptud way +31

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fkstpashls %9-925 tnis' ,ighh but 'tis gnueoh to teg vnyithereg else nedxga.yoet sueaBec ist' not 001% ihhg wofl eht seitarn o'tdn rvae-uvilzrocsae dan ldea to dhegem,goaaremrha/ adn stih klei aht.t +1

soccerfan23 In orhte ..re.sw.hodt sieuoqnt si saacbyill sginka ywh tyeh gave the tnetipa a oi2f fo 52-99% idnesta of 0.1%0 hTe ronesa si ueacesb 10%0 yogexn lwoud aeld to intphyoeart fo armre.upytti Teh rwoel 2-599% yxgoen leelvs ecotrtp hte nretai frmo dgem.aa The gnoidwr fo het tnoqeusi ssuck oht .imo +3

randi AF 0921 10p2 nrdue eFre aicdarl nyujir eselmxap +

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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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hcnro"ic hihg exngoy snostuaitar cna elvryased cffate gunl nad yee uoesocmt of tprmree f ."nisantlink

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submitted by ∗divya(75)

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raeeg htwi b 'h.keteyraru ygrnti to sya ahtt irmpayr goal of atteetmnr iwth tlnlauepmpse o2 is ot kema eusr etehr si no rntaile emgad.a

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submitted by ∗ergogenic22(401)

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hyw is octneproti of eth dhrooic lexs,up mfro ravnrrltnceituia ptruure eocadsnyr ot lreanimg matirx ahmheogrer nto a opbiesls rsan?we

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whoissaad esy smae tunoqeis, othb rhnytaoepit and liuertcarinvtarn gehaoemrm nac ucroc due ot gihh nogexy e.sel.lv +

cienfuegos I etminkalys cseoh cdroioh lpusex oo,t sebad no kwii esems tsih is ostm momnoc uaesc of HIV ni etmr it:asnfn VIH ni het emertpr rbnai slluauy isares mofr teh gilermna rtimxa erwehas IHV in het rtem nntfsai atirnsgeio mrof the hrdocio upxe.sl erHeo,vw it is rtrlylaiapcu ncommo ni eertampur saintfn or tseho of vrye lwo hrtib .h.i.ewgt Mtos rltvcraieuantnir ereghamhsor cruco ni het sfrti 72 husro aetrf rbhti. ehT rsik is redasenci ithw ues fo oeotxrrlecapra mbmarnee naoyoxenigt in rmprtee .tn naisfaarBapt.k.env/tse/tiniawerr_cos:ureebgmhthnpkiriIelrai/#ogwhdi/i +

burak hroocdi lpeusx si itfeerndf ahnt imlgrnea mtiaxr +

meryen13 ltenrai mharrgeoeh is moer nommco ahtt VHI nvee if ouy ntkih ttha ti udocl emaagd cooidrh ascple osadcyenr ot nlreigam maixrt .oehhrmearg 1ms3ppm/ti.6h1bwco/:ei.b//unnwt0.g.4w1vdhn8l +

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-4 upvote downvote
submitted by ∗lilmonkey(63)

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enyoAn negrdai tish qnsieout

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SPOILER ALERTTTTTTTT

lollll i got this right because of This is Us.

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