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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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rHese' an tlcnxeeel gaemi rmof BOMSSA fi lepepo rea nvghia tficyiflud isznuivalig hs:ti ri:h./mtammhpsRQW/ucoVmtg//

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lovebug  veyr hu!lelfp hnta!sk +



 +6  upvote downvote
submitted by jotajota94(14)
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PDA fswlo morf toara ot lrmypaonu rreaty dgiracsene hrtoTaferelaerfdo. e icardca uutpot nseesraic

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seagull  sotned rapld-oe slao raeedcse chhiw lduow rpdo het C?O.. +
hungrybox  elglau@s I ktnih it uodlw eaescnir eldorap /cb rmoe lobdo is ggino otin eht naupyomlr rarieste >- gsunl >- aumrlnopy isevn >- uvenltyael mreo odlob in ltef uveetitairrl/cnm >- cni rloadpe +63



 +6  upvote downvote
submitted by heavy_neighborhood(6)
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PDA fwols rfmo hte Aatro =t;=g& olnParumy rairese,t by aspings eht RV os rehte is no hgneca ni 2O ni het RV.

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felxordigitorum  Teh teal"s" rfmo het taaro drungi dtoilesa qreesiur esradncei dicacra otpuut to soctanmpe.e yeltErmxe urpetmare nistafn vhea dmtleii tyliabi to eirecasn srokte omlveu dan hust esu dsiaeenrc ehrta raet to rnsicaee icdarac uopu.tt ittow.pobibh537ns8swB.//.//ngnv0mc:.hloK/Nwk4 +2



 +2  upvote downvote
submitted by didelphus(70)
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A DAP lesslyneita acetrse a ghh-olwif ertha feuirla usttinaoi ni teh b.aby icSne a faoricnt of het VL upotut si erdetnru wttuoih iragchne eht bdyo, in rdroe ot nanmiait a rnmloa OC ot the boyd hte tfle lcetrvein smut mupp a giherh .veulmo ihTs dluow sola usace hihrge tanh lamorn rpmaunoly ylarpiacl wlof.

I nitkh osem fo teh eorth eqtnuois rea gttgeni at het daei ttha ew tnd'o nokw hte oeirintcd of owfl ofr e.sur If het olwf was nt,ol-au&t-ags;rg eht syistcem P2O odlwu eb roalnm dna RV 2OP hh.gi Btu fi ts'i opsotipe, hte sppotoie luowd be .rteu

nieSc DAPs ear deiiamatnn by E2GP, htat wulod tctrboneiu ot a olw hrearielpp uvsaclar satrseneci.

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didelphus  *naeohrt urse odetn hatt this lonut'dw mptcai RV oenxgy escbeau hte ooldb si daded ot het olnurmayp are,yrt iwhch sah tdiexe hte .RV +3



 +0  upvote downvote
submitted by moneysacs(3)
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Wyh si deso a ADP atefr ithbr sertlu in hehr"ig nhat noarlm ftel nrecuvartil acdairc tp"ouut veor dsenireca gir"th lrnteriuavc "?PO2 Dsoe the lpum tayerr ;-t-&g toara uthns oeebmc dsreerev artef ,hribt so erhgih gxneyo oatra bdool odlwu olfw cabk iont the irtgh er?eictlvn I tge atht eomr odlbo owuld eb pumdep ot eth flte cintreev,l rgeulitsn ni H,VHV/LR tbu tndo' ndudastrne het O2 bit.

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usmleuser007  1) rghieh tanh maolnr OC bc/ odolb si thsednu mfro araot to pnoryulma raiteer.s shiT doblo is dedad to eth uomlev thta wsa dmeupp toni het raumlpoyn rasterei yb teh R.V Now ewnh eth adxetgoeny lodob nteursr to the LA & VL, teh 2O ntnecot olwdu eb gaeerrt t/d hhierg dolob uemov.l Also rof ttah esma aresno mreo bodlo si rinrtunge to teh VL /t(d VL vuolme lups iorftcan of VR lue.o)mv hiTs eradnesci hte C-- >.iO gRh t tLfe thssun ahve tlae scasnoyi b/c hte RV si sihnpgu nasatgi eht sxscee rrssueep aeeerdngt yb eth L.V iTsh sdeal ot gsreiennmEe emSdnryo as VR lsanrgee nad hpsesu tsnagia het rsuspere mrof hte VL ni eth DP.A Thus fhtnisig fteL to hgrti to gtirh ot etfL and uhst eth ltea sncoaisy +2
temmy  The montyaa is ponryltau-aomra ayrpomaeur-ltnyr nvf-eielts -fatteuirml veiltnNecico ter htat eth doblo idd ton omce sorsca het rghti traeh ta lal adn cuaebse of the FLET OT IRTHG tnhus fo teh PD,A we add eomr lmuevo ot eth EFLT d.ise Hcnee het edrsnacei left vncaiulterr uottup +2



 +0  upvote downvote
submitted by masonkingcobra(408)
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kLni

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necrotizingfasciitis  noiGg off fo hte nmotecsm ploepe veah teospd vaobe & kadin nigbirgn hnsgti :ogDPrt et e hA oslwf from oaart to nylopumra ersatrie, ihcwh eserervs eafrt birht. iThs nesam etaed-xydeogn oobdl wlfo fmor eth unlyaomrp raeierts ot eth taora & sels eovmlu egibn ntes to teh LF side of the ha.rte i shT ulertss ni a dsercdeae eodtlfaar eascueb rehte si lses boodl figwnol mrof eht lusng to irf-lel eth FL nteivl,rce & eth htrea is ilslt ingumpp wtih the mase force as frbe,oe os teh asme oleumv of dlobo si eivgnla, utb less ni etnnigre teh FL sied of eht hrmor . at Fe hre,e you eus OC = VS x HRV S = aledrpo - aldreftao (ciwhh is crsaeedde eud ot teh )DsATh i P rleusst ni SV ebgni aelrrg ntah rlmoan, so wneh oyu lgpu hatt iotn OC = VS x RH you teg a hrighe umnrbe orf acrdiac tpu.tuo +
didelphus  eTh uscdut isutrraoes wslof mrof PA ->- ortaa in ruteo ot psbsya eht lnu,gs wihhc aveh eteryxelm ghhi iescrtensa ot f.owl ihsT reseesrv etfar rhitb edu to a ordp ni PG2E c(hiwh was selppdiu yb the enatca)lp dna risecena ni id-eetlsfd etyscmis eica.rtsesn So a DPA cpytyaill olsfw ratoa >-- AP sinsgmua( heret rae no ehtor )dc.eetfs +



 +0  upvote downvote
submitted by jandj19(0)
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Tsih is a rvey oloc copetcn xpdaienel in teh pRiad eevRiw hlogtypao o,bko agpe 275.

fiddsee-Lt ot t-gdsirdhie ethar sthusn resltsu in omvlue voredoal in the gtirh dsei fo eth rath,e which erneacsis LV vmuoel eloa)(dpr eud ot orem oldbo rennriugt from hte girth trhea ot eht ltfe rteha. An neareics ni VL aroelpd si elqua roem draacci tpouut and more orwk ofr the etrh.a tLear in feli thta lliw elad ot an tnericcec pety fo LHV hiwt ceerdaes ccidara uuptot, ulmoynrpa eshnoerynpti dna a nncirotcce VRH edu to high dealtofar thta hte rghti arthe ahs ot mupp ngait.sa

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 -1  upvote downvote
submitted by djinn(6)
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oLw rotaflaed tg;& hgih OC

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 -2  upvote downvote
submitted by hello(429)
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iThs si het ulctaa torrecc :nilnoatpxae

DPA ecsaus lodbo ot lfwo mrfo cnisgddnee aaort ot ntptea udcuts tsurriaoes ntoi rounmpyal catlnuiirco "-f)g"(r-hotlteit

ehT t"sa"el mfor eht oatra rdugin aiestldo qresriue edcrasnei ccdraia tutpuo ot omsnteceap to elrvdie quaetdae mtanuo fo oobdl ot sret of doby

ourSe:c tmhN/owws8//nbp3:vwnhBl.k4o/Ko5t.0c./7bsii.gn

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fkstpashls  st'I L ot R +2



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