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Retired NBME 21 Answers

nbme21/Block 4/Question#15 (reveal difficulty score)
A 5-year-old boy is brought to the physician ...
Lack of choroidal pigment deposition in the macula 🔍 / 📺 / 🌳 / 📖
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 +32  upvote downvote
submitted by henoch280(70)
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mt@.mye Thsi tuesinoq sttse rou lkwegodne on lsnimaib hwcih is layomnlr a setairsnoy inedeiyccf sediesa btu teh teitgvne esstta htat eht 'ysob lbinisma si csueda by a ectinge moiauttn in the 1TRYP ngee icwhh is snwho in het iblihoccame watapyh. A gene atth lehsp in eth hisysetns of maeunnEi.l

owN uoy evah to densdanurt thta lla rsoreurpsc erboef tath gnee si teh tyaahpw lwodu ltisl eb allbvaeai if nto areesdicn hwhic emak 2 of the otnpiso in eht oqtuiesn rgnow.

you asol eahv to sunnredadt iEsl()n taheuin:m = minnamro(elon) e.i mnoarl nniealm cwhhi is evetircpot to het is,kn edsreseac itaeevcr enxoyg especis nad segiv hte kdra miptengs to hte ri,si ihrdoc,o k,nsi hira f nilet.i.ecnme.( haew)ol = ealfe(amin)nk ei. peole,aimnnh het one rtepnse ni uor tnitaep erhe whihc is sels ocettervpi iaagn het vu sr,ay cnanot pmtgein nad aotcnn reeceasd SRO rnetgedae in hte si. kni pohe sthi psleh

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 +4  upvote downvote
submitted by cantaloupe5(87)
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sccesoPr of nmlaeioitin rof shit .oen woT uoy can tmeiainle emtiiymdael stju rfom gkoloin ta hte mcealciiohb twpyaah rtah.c The rothe tow equrdeir eelkgnwod htat nlneaeuim si roem ertoivcpte tahn nnhmpeileao itsh( is hyw ehrasdde rnbu mero yl.s)eia esceuBa hplneneimoa is esls trei,teocvp there odwul be eorm tno slse ORS frmo hstinlg.u

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temmy  i ntdo' sareundtnd hsti at .lal i ma clletmyoep apea.lekb..lsn lpeh +3
henoch280  ym.e@mt hiTs qniuoste stets uor elokndwge on imibnals hchwi si lmalrnoy a asnsryeito yecdcfenii iasedse utb hte tvtgenie sattse ttah eth o'syb iilsbamn si sudeca by a iegectn ntioatmu in eht RPYT1 gene hihwc is wsnho in eht hlobicmciae yaahw.tp A egne taht hselp ni the niesshsty fo uEemnniNalow. oyu ehva to nsernutdad htta lal urspecsorr febroe hatt ngee si hte ahtwapy wolud listl be ealailvba fi otn driecasen icwhh maek 2 of eth tinpoos in the qeiotsnu urwg. noyo sola vahe ot snnreutdda mnhiiEstau:(n)el = nmrni)(emalnoo e.i lmroan enamlni ihchw is tietporecv ot teh sikn, esedserca taveecir oexygn peisecs dna ievgs eht rakd gnpemits to eth i,sri ,hoiodcr isn,k rhai nie(..a)mfw.llnt ch oieee = m)nafekln(eia .ei ehol,einpanm teh eno etsnrep in our neitpta rehe hwihc is slse ceptervtio gnaai the vu ,srya nonatc iengtmp adn taonnc ecesadre ROS nedatrege ni eht kiis.n peho ihst slpeh +32
eacv  e0n@82hhco kanht u very uhc!m I ogt ti irhgt yb luck but wno i od dnsaduernt D: +



 +4  upvote downvote
submitted by drfish(4)
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I vbeiele htsi eon saw tjus an rwanse fo ulsxnceoi / ocsesrp fo nalemn.ioiit ouY dah ot nsrtnudade htat the etovtoerohticpp ofrm of nenmial si the alckb neo (uanenmlie) nad naolmpynehit )rde( is sles o.terpcviopoetth mFro hreet ti caasilylb si iagnsy a teeopclm slos fo unftoicn nmuoatit of YRTP.1

  • ecbsenA fo sontsaryie (hceoci A) si dirtmnytesa—oeliansei is ywa tsuaprme fo R1TYP.

  • dDcsaeree tcaontnrinsoec fo 5,6 ecocih( B) si eeiilmantd scnei eterh udlow be idaenecsr sbusetrat of R1Y.PT

  • saerDdcee SRO hceci(o C) nad ianrseecd oeopcttoohritpn icch(oe D) era eineiltdam ebausce tehre si elss cetrtohpotnipoo mfor eht ssol of unalimeen = esndcarei O.SR

nyArptaple doliarcoh mipegtn si maed of ehoiltmnaypn tbu no wya uoy reew decxteep ot nkwo hat.t

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 +1  upvote downvote
submitted by sweetmed(157)
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mnialnueE lsoa lshpe hte cdioorh iitlm tlnuocdrloen oeecftrlni niwith teh eey atth oluwd tayletnpoli uerslt ni eht coteeppnir of gnnuoisfc giema

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 +1  upvote downvote
submitted by sahusema(173)
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I tuc opne an elblyae eocn nad I asw ersuprids owh eedns labck the atlirmea idesin wa.s ahTt ulsp rcopsse of ntmlnoaiiie broguht em to hte trgih saenrw

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