NBME 21 Retina (NBME Answers)

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 .271 Too mhcu xnioyteoang anc uasec rfee dilcaar amaedg landieg ot tnerohiaytp fo yeumprirtat

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mmm21 Oaky i mghit eb aerrde,td ubt hwy i t’anc drntneduas ahtt yhte r gaisnk bouat eth hgnit ahtt is aemdgda ? 😂😂 +8

sahusema esluo!iySr eTh sntqoeiu ysas h"et algo fo nmtrteeta si eht tcoeirtpno of hciwh of het goillnfow s"urteusctr? If oto chmu 2O demagas eth rniaet, woh si tish tntmreaet upedosps to be oevcreptit to hte ie?rnta +2

ratadecalle I tnkih oot hucm egnxyo uwldo be ihwt hte ttileaonrv vhgain a ighh i2OF ,sgietnt hihwc htye otnd' miteonn eerh tbu Im' ngseiugs tshta hte nhigt hryt'ee tnlooclring ot iadvo xgyeno tic?iytox +2

burak hety tdind' gvie the tatienp i2of ,0%10 nuoiqset asks het rseoan for it. btu ni a yrev diupts ywa +31

naught munlaSlpetep 2O yma alos ceasu cpoonnhumrorylab iadylasps ro aancutrrntrveili hhomreareg r(leagmni itr,axm aoedctl in abrvilursncteu zoen TNO ohicrdo lpsxeu) +1

fkstpashls 2599%- sni't gi,hh tbu its' eounhg ot get greihvtyne eels aygondexte. aucBese ist' nto 10%0 hghi lwof eht sairtne tdo'n l-auvsizrvraoece and deal ot ,hagroehrgadeea/mm dan siht ielk tath. +1

soccerfan23 nI rteho or.es.d.w.ht qesniuto si liasalycb gskani why yeht vgae eth pntetia a ofi2 fo 25%-99 eindast fo %0.01 ehT nosera si buaseec %010 oxgyne uldwo adle ot rinthpoyeat of i.urpertamty Teh lreow 9%925- gyexno eslvle rtceotp hte tniera ofrm d.aamge heT nwrdgio fo het qtisoune scsku toh mio. +3

randi FA 0192 2p01 nured rFee acadlir yjurni aelexsmp +

umpalumpa fmor ANTEUR IitsgwhOst%n2:rt:%,P%t%heyng251htR.%2xS0tartaun%x=x0dt%msssaa00/7.ais/tee02xt2e%2%4t2a.ooveyeD2,ttrt0#0i20ed%it2:Dgesa%a2ae~r=ap;:%ncso2act2hhuawu/m02Oi/0%0g2Sn%1welo%amhcevrnh&to%i.p2nanhue0s02oni7ree0lw ear velS etcenr utessdi heva sowhn a ietphroisnal neteebw a eggn-hxiyoh antrosaiut and RO.P tI eessm ttah a ag%;29&3OtS cerenaiss the ksri rof eserev ORP dan deen fro yteharp +

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)

+2 upvote downvote
submitted by ∗mcl(671)

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c"orcinh high xgyneo taitassruon nca rsdeelyva feaftc guln dan yee msecootu fo ptererm snt".i nfaknil

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+0 upvote downvote
submitted by ∗divya(75)

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eegra hwti ar.yetk hrb'eu igytnr ot asy atth mpairry ogla fo tremteatn itwh tpuaslneemlp o2 is to keam user hrtee si no ritlane de.mgaa

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+0 upvote downvote
submitted by ∗ergogenic22(401)

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why si coienptotr fo eht ohrodic xpulse, frmo rltarvaciurtienn utrperu osrdceyan ot gamleirn ixmtar rhhemoareg not a pilbseos aens?rw

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whoissaad esy meas t,oseqniu tohb payheiotntr and utnrralretiancvi mhmogeaer can rcocu eud to ghhi genxoy .selelv. +

cienfuegos I ytsmlkiane ecsho hrioocd puxsel oot, sbaed on wiki seesm htis is mtso oncmmo casue fo VHI ni mter s:tafnin HIV in hte rreetmp anirb ulyslua riesas frmo teh agnielmr mraxti weahers IHV in eht emrt nsntiaf iosrgnaite rmof eth ooihcrd px.sleu we,ovrHe it si urtlaylaircp nmocmo in tramueper antfins ro tohes of yvre owl bhrit w.tehg..i oMst ruirtltiraacvnne ogaresmhrhe occur in teh sfitr 27 osruh treaf hbtr.i Teh ikrs si draeicsne ithw seu fo aeprxcrotrolea maerbenm etgonoainxy ni rmerept .if nstanctwgme#..ediorrkhwarh:neia/anegpo/riiavbsnpaktt//uIlrhistiere_Bi +

burak orohicd uxpesl si ednfrtfei nhat mielarng imrxat +

meryen13 litaenr mareeogrhh is omer mocmon taht VIH enev fi uyo thikn thta it ocdul agdema oorhdic cepals ecnasdyro ot rglnaemi xrtaim grha.heor mew/t/w1.pwul.mino18/hhn4c.06mntg1e3bp/sb:.ivd +

-4 upvote downvote
submitted by ∗lilmonkey(63)

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ynoAne ngreiad hsit tequisno

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lollll i got this right because of This is Us.

+/- alexv0815(10)

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