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 pg .712 Too hmcu noognyetixa cna uceas erfe cadrila dmgaea gdnilea to anrtpieytoh of aerttpmyuir

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mmm21 Okya i ghtim be ,errtaedd but yhw i ca’nt dnendrsuat ahtt htey r ngaiks utoab eht ginth htat is emdadga ? 😂😂 +8

sahusema !syeurloSi heT nsieoqut yssa "eth algo of nttemarte is eth ptoionetrc of whcih of the wofnilogl rtsut?sr"euc If oot chum 2O gedmasa the naiter, ohw si iths eaettntrm puepssod ot be oevrctietp to eth en?tiar +2

ratadecalle I nkhit too uhcm ngeyxo olwdu be ithw eth ittvnarole avinhg a hghi iF2O gstei,nt ichwh hety d'otn mtnneio heer ubt 'Im susgiegn tstah the ghitn heet'ry oloinlcrgnt ot daoiv gynxoe oiyctxit? +2

burak ythe d'tdni vgie hte pateint o2fi 0,0%1 eustinqo ksas eht saorne ofr ti. tub ni a very iuptds awy +31

naught laSnlupteepm 2O yma salo uaecs lunabpmhnorryooc spasdiyla or rvrintarluacitne rgoeahremh rnmelgi(a mtrxa,i coledat in cuvreualnrsbti enzo NOT oihcord slepxu) +1

fkstpashls -5%299 'tisn g,hhi tub it's oguneh to teg hvtgnyieer lese xeyog.denta ceesuBa i'ts otn 010% ghih folw het rntaesi 'tdon orieruvasav-lezc dna adel ot go,rmm/aeaheaerhgd and tihs like a.tht +1

soccerfan23 nI orhet shd.r..weo.t seintouq is illcsabay iangsk yhw ehty evag eht ptneita a oif2 of 9-9%25 dinetas fo 01%0. The oarsne is seacube 01%0 gyenxo odlwu laed to heipotraytn fo imrrt.euapyt heT roewl -2%959 yoxneg sevlle prtceot het nretai fomr .maedag Teh orindwg of eth oqieusnt sscuk tho .iom +3

randi AF 2190 0p21 ndure Fere iarcdla jynuri epaxsmle +

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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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+2 upvote downvote
submitted by ∗mcl(671)

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oh"cincr ihgh gyxoen sriuaatntso anc deareysvl fecfta lung nda eey emcotuos fo eertprm s.afnint "ilkn

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+0 upvote downvote
submitted by ∗divya(75)

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argee iwht 'athkeur .beyr yinrgt ot say tath piarmry aglo fo rtmaenett ihwt tnulmlepspea 2o si ot eakm rseu eterh is on entlair eg.amad

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submitted by ∗ergogenic22(401)

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hyw is ocretniotp of the cdhooir ,lpxuse omfr navltitiencarrur uureprt dryseaonc ot lganrime itxmra reohamrgeh ton a lbipsseo swnrae?

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whoissaad sye meas oei,stuqn obth piotrayhnte nad vitltneiucraranr agermmohe nac ourcc eud to hgih oxyeng lvl.es.e +

cienfuegos I neikstmayl cesho rhodico lpseux ,oot edbsa no wiki mssee siht si tsmo mmocon uesac fo IVH in rtme nnisf:ta VIH ni het reremtp brina uysllua srisea rofm eth agienlmr iraxmt wserahe HVI in the term tainnfs oiagritnes mfro hte hiorocd .uelspx ewr,evHo ti si rciatluapylr comomn ni ptmuraeer nfatnis or ohtes of eyrv wlo tihrb .htwieg.. stoM rrunevlttiniaarc hhoregrmase cocru ni the fitsr 27 oshur afret rihb.t The riks si srnaecide whti use fo xrcaerlepoatro eabnrmem nogxyeitano ni rretmep nfanst .iIeva#hoc:ed_eurg/eate/birpinnwgoirpish/tak.re.takinsltirhirm/wBa +

burak hooridc pusexl si neifedtfr tahn gimearln rxamti +

meryen13 tealrni hergarehom si meor monmoc thta VHI enev if uoy knhit htat it cuold mdgeaa hicodro plesca sonraeycd ot lerngmia atmxri eghrhae rom.nbtip1m.8pd.3uw/:1h/.mnglocs/hv1t6e/w04bniw. +

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-4 upvote downvote
submitted by ∗lilmonkey(63)

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Anyneo aidrgne htsi qitnueso

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SPOILER ALERTTTTTTTT

lollll i got this right because of This is Us.

+/- alexv0815(10)

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