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Retired NBME 21 Answers

nbme21/Block 2/Question#5 (reveal difficulty score)
A 2-week-old male newborn has a patent ductus ...
Higher than normal left ventricular cardiac output 🔍 / 📺 / 🌳 / 📖
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 +9  upvote downvote
submitted by d_holles(218)
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rH'ees na leextecln gaiem rmof AMOSSB fi plpeoe aer vighna tlciuffidy nisalizivgu hit:s hoWRrg:us/mpmthtQm/.a/m/iVc

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lovebug  vrey fplulh!e sat!nhk +



 +6  upvote downvote
submitted by jotajota94(14)
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PAD fslwo mrof aoatr to oumyplnra etryra rcignedase faheeleo aedrtrfr.To rdaicac tuuotp reeacnsis

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seagull  ndsteo pedlaro- sola ceardsee cwhih ludwo ordp eth C?..O +
hungrybox  lulae@gs I kitnh ti wdolu ceerisna adlrope cb/ rome olbod is oggin into eth onaruylpm atseeirr >- lsgnu -> npymoular ienvs -> elyutaveln rome dloob in felt m/ieretraucvltni -> nci draopel +63



 +6  upvote downvote
submitted by heavy_neighborhood(6)
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DPA folws mrof eht taorA ;g==t& yamlnorPu e,atsirre by ssnaipg the RV so ether si on ncageh ni 2O ni eth .VR

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felxordigitorum  ehT "elsa"t rmfo the aarot dnrigu asdoleti iuqserre idrecnsae rdaccia uuottp to eoenmt.acps lemtryeEx epermarut tnsnifa hvea timilde iyiltba ot crisaeen ksreto voemul adn utsh seu idcenraes ehtar aert to eaciners raacidc uuott.p gn/./b./i3mhKonwhc5b/04pNikvoo7w:s8swBl.n.tt/ +2



 +2  upvote downvote
submitted by didelphus(70)
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A DAP siylleestan sactere a oigwhf-lh ahert rlfaeiu iunitotsa ni eht by.ab niecS a cafnoitr fo teh VL ouuttp is tenurder itwutho gniheacr eth ,doby in drroe to itniaamn a aonlrm OC ot the obdy eht elft trcevelin mtsu ppum a gihhre uom.lev sThi ouldw sola ecaus iegrhh hatn armnol mlrouanyp aclaylirp lofw.

I kinht meos fo the hotre toiqsenu rae ttiggen ta the adie tath ew ndot' ownk het ircnotide fo lfow rfo seur. fI teh oflw was rn-&a,uagtlt;-osg teh teycsims PO2 lwodu eb rlmano nad VR 2PO h.igh uBt fi ts'i oep,opsti eth esotoipp wdlou be etr.u

Senic ADsP are aiatnnemdi by ,P2GE htta oudwl trenoitcub to a olw rirphpelea ruaavscl eneacit.ssr

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didelphus  renh*tao esur tnode atth iths 'ulwtndo imptac RV xgoney seuebac teh odlob is ddeda ot the uaypomlrn ,reryat ihwch has deixet the VR. +3



 +0  upvote downvote
submitted by moneysacs(3)
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Wyh is dose a PAD rfeta hrbit ltsure ni "ihgehr athn rnlmao lfte rrclvntueia aaicrdc p"outut evro ncesiarde htr"ig nvtraierucl "OP2? Dose teh plum ytraer tg;&-- aaotr tshnu eembco rseveerd aretf hbt,ri so igrehh enygxo aator doblo luwod flwo cbak toin the ihtrg ei?tvcrnel I teg htta eorm bolod oldwu be dumpep ot het tfle ten,eviclr insgleurt ni V/H,LHVR btu n'dot eandnusrtd the 2O t.bi

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usmleuser007  1) gerihh tnah armnlo CO c/b boold is udentsh rfmo raato to lypmunroa estraer.i ishT oobdl si aeddd to eth omvleu taht was umedpp tion eth yparulmno rareseit by teh V.R Now nhew hte naexdotegy lodob nsutrre ot eth LA & ,LV teh 2O entnoct dluow eb rareegt t/d rhgehi oobdl uvml.oe olsA ofr tath msea eroasn erom bldoo is irugrentn to the VL /(dt LV emvolu upsl cintfaor fo VR l.)mevou hsiT cnieesdra the OtC .h g-Ri-> Ltef stshun have teal asscoiyn cb/ eht RV si ngpuhis tigsana the xsseec suesrrpe dgeenrtea by the V.L Thsi ldsae ot Egserennime deySomrn as RV rnlgeaes and shspue sngatia eth psrersue rmof teh LV ni eth D.AP hTus inhfsgti eLtf to ihgtr ot igthr to feLt nad htsu hte aetl isnyacos +2
temmy  The tnayoma is nlaaopr-auyormt prrmnu-yoreaaytl s-tlveeinf -rtmuietfal tiernNvletiocce tath het doolb ddi nto meco ocsasr teh ihgtr rthae at lal dna scebuea fo the FLET OT TIHRG nuths of teh PDA, we add reom vuemol ot the LEFT sd.ei Hncee hte seicraned tefl centirvulra uouptt +2



 +0  upvote downvote
submitted by masonkingcobra(408)
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ikLn

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necrotizingfasciitis  iongG off fo eth smcnmeot eelppo haev dpseto boaev & ankid girginnb isgtnh hAog Det: t Pre fslow fomr aroat ot lyoraupnm iaer,rtes whihc eeresrsv artef hbtri. ihTs esanm eotdgax-ndeey odblo fwol morf the pnroulmay atrieser to hte troaa & less vmuole niegb tsen to teh FL sied of teh .trahe T h si lutress in a esedcared etdflraao ceebaus ehret is sels obdol noigflw mrfo the gusln to ilrfel- het FL tel,crnevi & the trhae si stlil gumpipn ithw het mesa cofre sa ereo,bf os het msae oelumv of dolbo si e,vagnil btu esls in ennirgte teh LF ides fo the h mtFro.ear ,ehre oyu esu CO = SV x R VSH = dalrpeo - atrolaefd hch(wi is srcdedeae eud ot the )A i DsThP rlstseu ni SV ebngi garerl nhta na,morl so ewhn uyo gplu that onti OC = SV x HR uoy get a hgeihr mneurb rfo criacda t.utuop +
didelphus  heT dcusut urirstsaeo slwof form AP ->- otara in tuore ot saybps hte ,ugnsl hihcw vhae rmyextlee gihh eaiscsertn to .lfwo hTsi ssreerve fraet tbhri due to a dpro in G2EP w(chhi swa ueldpspi by the n)eltacpa adn enacsrei ni ldetsfie-d csmieyst .istcearens So a DAP iaylpylct lwsof oarat >-- PA sgiu(msan there are on tohre et)sfecd. +



 +0  upvote downvote
submitted by jandj19(0)
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sihT si a veyr looc ccotpne eidexpaln ni hte aidRp iveweR poayloght obk,o geap .527

disetedfL- ot dihtdsgi-er tarhe nssthu sustler in leoumv rvadeolo in eht rhtig deis of eth ah,rte ihwch reensasic VL emvolu )pld(aoer eud ot oerm loodb nnguitrre form eth rghti heart ot teh felt htr.ae nA eeisnrac ni VL lpaedor is laeuq orme cacarid uoutpt adn remo work rfo eth ehrta. ertLa in efli ttah lilw elda to na tnrieccce ypte fo VLH with esecrdae cardaci uttop,u mpuraloyn ehtrnyoneisp and a ntrcciocne HRV deu ot hgih eroafdalt atht eht ihgrt etrah ahs to ppmu sagtina.

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 -1  upvote downvote
submitted by djinn(6)
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Low rfoalteda ;> ghhi OC

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 -2  upvote downvote
submitted by hello(429)
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hsTi is the aatcul trcocer alnp:oetnxia

APD easucs olodb ot lwof rfom isgdnncdee aaort to epantt sduutc rasirsoetu tnoi uomarnlyp rutioclican ("l-t"i)rtthogfe-

eTh "selta" morf teh traoa giurnd eoitlsda sreqruie carndeeis caadrci ouuttp to emtsncepao to eeidrvl udetaaqe aoutnm fo odolb to rtes of ydbo

Se:uorc :/oik.bn/n./i5wK8oolb0.hm/.vwtghw/tsNsB3p74nc

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fkstpashls  stI' L to R +2



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