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Retired NBME 23 Answers

nbme23/Block 4/Question#41 (reveal difficulty score)
Electrophysiology of the heart is studied in ...
Ablation of the atrioventricular node 🔍 / 📺 / 🌳 / 📖
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submitted by amirmullick3(76)
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CGE cTsiarng. hTe aedntsci neebtwe QSR oxpsmcele si snnuoiluyoct toabu 6 ,sxoeb so taer si ntd.acTiehuefsf is a dr3 egeerd block ehwre het raati dna erelctvsin are abegint lienednytdepn of htecearho dan hte RR si elneutvqia lal genaT ohl. 2dn QRS xlcmpoe si PRESU wornar, dna terohs era lsoa ,nrowar wihch nmeas ytrhee iegpzailrnod hksant to enblud of isH.

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homersul  tlsil yltslgih dnsfeuco why dt'idn ouy ipck liisaaront e?odn ts'Tah lslyuua dyerosetd in fibA to aolmi''resn teh RH +


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 +5  upvote downvote
submitted by sajaqua1(607)
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tnd'lWou taotl AV danlo nilotaab detyrso to cmtruhthyyaiito of the emakpaecr? athT dowlu eman thta wlboe eth VA neod the mtyhhr luwdo be poridved by a ecvtluranir foi,c adn othse alsuuly eeract edwi RQS mplxeose.c

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haliburton  taht aws ym rnaogisen as lw.le susge o.nt +
yotsubato  yttSih MENB gaarmrm rsstkei g.anai +1
charcot_bouchard  oN. No y.ugs nudeBl of ihs acdoetl olbwe AV deon dan ti nca nteeegar me.uspli it cslal junoctni csepae myrhth dna narorw l.emoxpc eBlwo itsh is e,rniukjp undebl bacrhn a;p&m etuanrcrilv secl.um eosht are iewd ocplmex +20
abhishek021196  m oodghe-ic)kVdetTeeeApelcT(brlh r  raait and scivteelrn atbe dinnnldtepyee fo aech h.troe P waavends QRS peloxsmec ton ctalyhlyirmh soeai.dctsa Atairl erta r;uetlcrtangv& i r.ate sllyUua rteaedt ihwt ap.aemkcer anC be scae ydub Ly3m isdesae +2


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submitted by aladar50(41)
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For het GEC, I yiitnilal tgouhth it was 2nd edeerg pTye 1 beaescu ti medese atth eht RP eaintlvsr eerw gianesricn lntui a bate asw pderpdo, btu fi oyu lkoo at ti l,yeolsc semo of eth P sewav wree dendih ni eht QRS mepeoxc.ls fI ouy otiecn t,aht tehn uoy nac see hatt hetre were lrgurae P svaew nda eagrrul QRS ec,plxmoes but herte saw a mpcolete odcnsoaisiit eetewnb hemt which manes ti aws d3r rgedee rhaet kbolc, so hte sanewr saw bioatnal rane het VA .doen

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yotsubato  rwnsae asw itoabnal erna het VA d.noe oN ti .swnta tI swa tiaoabnl OF HET AV oned tei.fls ihhcW defak me .tuo +9
makinallkindzofgainz  eTh naetntg yb esru t"rb"wahb ayss tath herte si rp" entnnhegigl ygrreessvo"lip but ereht is ohn .stiT si 3rd rdgeee VA lck.bo hTe P aesvw rhacm tou litsnysnctoe ta tihre own trae, dna eth RSQ lecpsemox mhcar tuo at htrei own trea. rheeT si petomcel tsiosnaiicdo etenweb eth P swvea dan SRQ lemcosxp.e Tyeh aveh no lnhestroiipa. iThs si tlceyxa wath uyo lowdu ese if oyu dbaalte teh AV .ndeo Teh AS doen uwldo cnioeutn ot to eercta P .svwae eTh uebndl of His wdulo iuoecntn ot aeeterng njniolacut anr(lom oli)gnok RSQ osxem.elpc +6


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 +3  upvote downvote
submitted by mutteringly(34)
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UW seouitnQ :dI tgen6s T17i9 a rvye msliria eoccntp adn vipsoerd a rateg noxaaietnlp orf hits!

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 +3  upvote downvote
submitted by fallenistand(27)
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Tshi toeqinsu is giksan awht luwdo cusea tsih! RP vnieltra ssinemg up is an uesis ta eht VA .ndeo So tlaniabg eht AV dnoe dwolu aesuc rtahe l.obkc

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 +2  upvote downvote
submitted by krewfoo99(116)
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nI sdroab adn bndo,ye tI is iasd ahtt irdth gderee terah oblck si eud ot bockl in hte HSI Pjiekneru emstys. So hyw dluwo blatoina fo VA eodn saeuc htis see?aisd

lduonWt nitsutcdero fo trap of eflt reevnltci eb a etebtr wesanr ?

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brbwhat  Hda eht meas ,uotbd eaRd het prat aigna and uodfn ehp stiT.y 2 sI ducase hwen epjunrki si innghga by a dretha dan feeoerrth emso emsispul ,undccetdo emso .b nhtoC is educas by iekprnju nto cdgnucnito mispules ofmr asn, omes rowle rekmaepca ei pjikernu ro shi si aniilsregdop by lesitf hcnee tsnielrvec tabe nndeeeld.itpny eTreh is KOLBC ni peukijrn ofr tdnicocuon mofr .a onsgmnA psotion eht only nitgh ttah ebshailstse htsi kbloc si van bn.toliaa +


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 +1  upvote downvote
submitted by methylased(20)
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Rgauelr hmthry noctu( teh obxs,e tyhee'r ,as)me 1 dcunteoucnd p weva tihw augrerl hhtymr &--t;g airat nad ltercvneis tanbegi ndpedinytlene il(yelk ircsnvleet ctrl by keP)H-sjnriui -&-;tg emltecop ()r3d hraet kocbl &-gt;- NVA aanitblo sih(t is yalultac enod for pts whti Afbi s)iemmsteo

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submitted by endochondral1(24)
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I utogthh aonabtil fo eth av neod asw a xt fro a ibf nto erhat ?lkbco

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underd0g  heT uensoiqt skas rof hte UAESC fo het terah ,lckbo otn rnemt.aett +


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submitted by osgoodschlatter10(41)
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I hitkn the qotuisen reerfs to a coineasr ascdeu by loiaanbt fo a aiuatrplcr rngioe fo eht eraht.

If ouy kool yaclefrul erthe rae emos mr-eaturpe elucnivratr abset ro( thrrea sutj ).1 aeePrrm-tu iatclreuvnr etsba anc be udaces by libanoat of hte AV node nsice eth AV noed si sopielerbsn ofr thrhym clrtono yb tlolicnnrgo eht mbnuer fo AS edno messpuil htat aer indtatrmets ot eth eiulavrtcrn ltcaceeilr kr.toenw

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submitted by kard(52)
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Pteitnas hwo rgdenou na VA endo aaltbnio are aosl eatpinldm wtih a eempkcara ot lhpe tnnaimai a lnrmao erhta ae.tr .xT rof loetecmp kcBol

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 -2  upvote downvote
submitted by goodkarmaonly(2)
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Teh EGC sohsw a iMotzb pyeT 1 clbko noloipg(gnr RP dwoleflo by a eopdrdp .aThveews e kclosb uysalul israe sa a oyudptbcr of a lynduinasfcot VA ,done so oabnltia at hte AV enod is teh mots eoaipatpprr awsren in shit eacs

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kcyanide101  sThi sloko orme leki a izmobt eypt 1. You anc poacrme teh cge aenidsrg to ahtt no A....F Ftisr egereD BH pa;&m otziMb ptey 1 rae llausyu AV .p.omers.b.l lWeih ozitMb teyp 2 adn r3d greede rea SIH uijnprke fbire siusse +


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