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Retired NBME 23 Answers

nbme23/Block 4/Question#45 (reveal difficulty score)
A 32-year-old man has a diastolic blood ...
Precapillary resistance 🔍 / 📺 / 🌳 / 📖
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submitted by ferrero(48)
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A evry lairmis oesntiqu I heva nese in nbQkas lwil sak wyh a npaetti ihtw griht erhta rauelif edso ont eepovdl emdae dan teh wraens is siedrcane ptlayhcmi radgne.ai I otg tish otsqeiun rowgn lilairyogn ceaeusb I esdwenar goaln itsh lnei fo ognsrniae tub I htikn ni isht aesc ti all sha ot do tiwh HERWE eht aetxr upesrsre si gcomin o.mrf In hits tesoiqnu eht tp sah adstcioil etneihyorspn os oyu anc khnit aotub teh rsuesper as nmgico f"or"ward os ctrionsnitgc yaclrpiepalr cephisntrs anc pnetrev na nisaeerc ni puersesr in eth arylacpil .ebd eHowevr orf hrgti htrae iufrale ihts eaxtr dliuf is oignmc orfm eth SPEOIPTO tencroiid drkcasw(ab omfr the irthg )rahet nda gtnisnicotrc payriapllerc renischspt nac do gntiohn on( tiopseop isde of yprlalcai bde) - eth yonl way ot rtepven eemad si to aiesnrce htlacimpy aeai.rdgn

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seagull  ehT ouqtsnie yacrlle adel us ot tnhki tuabo mOsoict essurpre by kgltian aobut otinerp dan erniu. I rweond ohw ymna olpepe sedu ttah einl of ngaionrse eil(k ?)sfelym +20
mousie  aGert epal,nxntoia I sheoc clatmpyhi dearangi fro eth seam rngosnaei iisal(mr Q on fdnitfeer )nkab +9
sympathetikey  My arnensigo swa umch roem ciimtlpiss myb(ea oto ep)ilms tbu ni my ,mdni lcioysst PB si deemnierdt yb iaCarcd tpOuut nda cidlsotia BP is ieedtmdenr yb lriat.erose heeroeT,fr twah emsoc eforbe eht ilacyarpl adn gureeslta e?sierstnac il.oAesertr t'Thsa hwy I said ttha pcelyrrpl-aai t.cniesarse +41
cr  het main creidffnee eetwbne eth 2 eacss is htat ni tish saec eht etpitna hsa ihhg PB +1
link981  oS ni nadnertkrgie gleauang teh untsioeq is iytselnales giknsa how hgih surpesre in teh tearrlia ymsste si NOT rnimatdtets to het unsoev mystse (ihcwh is weehr ADMEE devlpo.)es tBu ouy nwok tyeh evha ot add lla isht info to yrt unecosf a sbcia prcipnlei nad emak ouy cosnde suesg .eyflosru Go(t it rgwno by eht )awy ecbesau fo hawt forrree@ said of kanbQ noisut.qse +9
hello  efr@eror hawt ear you tgalink btu?oa ylcpatmih deigaran is the nrowg waer.ns.. +1
hello  ko rvnee .ndim i otg it. arhd ot atsunndder c/b ti aws a big cblko of etx.t +2
asteroides  I thnki hyte aym eb lkitnga tboua het gceymino natcomsepyor msanemci:h nh4?orn/bifncbcwt/sko.ibhpt.i/g=/3lr.gtr5m/elou4ejiy.oo/wse./g1BfpK54:vNntwoIa"esndce r rrtlaeia or sunveo srpeurse slao ndiuesc cinemogy cscnitrtioon fo leasreroti nad liarrleppyac preh,tnsisc whchi rssiae eatroiarlr sireetacns hertey(b iinznmgimi het nearesic ni yaalrlipc er)sseupr nda rsceude eth ismralorccuav casurfe aare avalleiab ofr uldif earFhcxe.ngo lepmae,x eeabucs uacravsl smthoo lsemcu in talairer dna aroerlatir slwla cstonartc enhw expodse to ledtevae rlrunaicvaast ,pssresrue siht cioymgen erepssno anesrseic rrpalcaelyip isstenarec nad scteport arciilplase frmo a ttmoanocnic sier in ithre nuvrrsictalaa es.presr"u +7
stsfyt  skame es.nes tmemsosei we esu (CB)oadatloniiCsv + dlnantieoivo (EICA) boocm ot baanlec the pers,urse adn evnrpet glkaeea dan .edaem +

I think they are referring to maintenance of GFR and blood pressure relationships. Ergo the mentioning of the renal function. The precapillary resistance is "glomerular" precapillary resistance, so if that increases then GFR remains the same => prevents leakage of proteins and albumin => less edema.

https://www.youtube.com/watch?v=IRZsniaCfVQ

+2/- peqmd(75)

this is the concept of blood flow autuoregulation at the tissue level in response to increasesd arterial pressure via arteiolar remodeling via smooth muscle hyperplasia ....

+/- msw(4)


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submitted by staph_aureusxx(9)
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laepprrcylia atcneisesr = ecbgisrdin teh rrioet.leas 'seh tgo maiimnl reonpti in het i;rnue dna on ami.buln het kye was inpagy ttoantnei to het olbod rsu.peesr rureePss is rdlageetu yb eht sesaniecrt lsessve sa sordba allcs it ichwh si het rrtoeleisa kaa rpeaclypailr e.teascsnri

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submitted by notadoctor(175)
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eIv' bene icshnager for ym secruo ofr this btu ctna' esem ot nidf t.i oveHe,wr eth awy I hgtouht atoub ti was htat eemda ahsnepp aiv teh ar.clsleiaip fI erteh is ceadenris sniesctear avi teh aliparlcrepy rhtsinpecs sa cmhu dolob nowtud'l eb bael to tge ntio eht las.rcaeipil heT bolod doluw deianst teg euhsntd iva assatnoseom ot het .svien hTsi leaitrc rmfo ohlysocgomvicyp. xlseanip it a telilt et:bret CV yoPsygl:hoi iusTse demEa and lGaeern Pniisclepr fo rclsTlnraypiaa dFlui enaxcEhg

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submitted by chagas14(1)
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eMayb eth uitesnqo is agiednl htiw hte oecnpct fo yoeingmc lrroeirata svoctcntiarosnoi hwchi si a rntaoeh imnaeead-t anshei.mcm ehT rep ralpilacy cienthprs ctctrnoa ni sorpnese to a aseir ni B.P I tog eht Q wgorn eebsauc I ckeidp aipmhyctl .wofl yeTh oelv ot og ofr the "hawt eel"s mtneeel fo nya co.tpi I ctonan nfdi nay raesno yhw eth latcihpmy piootn cuodl eb orwng :/

4rnK5.wwt:/p/oboctB4Nigla?w3isshl.=t/emc//oncvn5.rksi.sbpohC ekhc eth iegurf 41. Teh nMirag of ftyaSe natisgA maEed noomFirat – emadE ySatfe casoFrt

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submitted by adong(144)
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In idotnaid to wtah sha lrdeyaa ebne adsi I hkitn na trmopatni ntoip in the noqseiut wsa rotrylageu mesdasjtntu chiwh spinot emro tsorawd rolaireatr rig.autoeln

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submitted by usmleaspirant2020(9)
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/uiad63bd2tcntc/l7esff739d272:90.1d60fdudtdo2e50anyoo/.ee2e090bpe0c7hre1c25f0t9/

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submitted by ninja3232(11)
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hneW" raiatlre eperurss sflal, ycognmei neto si deucrde ni etsrer,alio danceirgse eirth asseirtcne ot ofwl nad gmianntniia lpayiacrl .rserpuse seThe ssovetibroan suegstg thta laarylipc rsrusepe aym eb aueelgdtr evor hte eams ergna of eseprusr ghaecns vroe whchi flow si gttlreuoadeua in a eivng gnr.ao dIn,eed rmof eth n:oaetil"r

h4/stop4gbwN5ol/w/m.nt35bnK..w.si:ovki//Bnch

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submitted by hello(429)
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hwy si mslpaa noitcoc rsrepsue g?wnor

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rainlad  I ntikh si't buacees we uldwo xpceet to ees emos oerm /nimuireratnlpuiriuaboa fi eht maplsa icootnc ueesrspr ahd arnidesec to esnmaepcto +1



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submitted by ferrero(48)
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A evyr srailim uiesoqnt I ahev ense ni basQnk lwli ask ywh a petatni wtih trigh aehrt ealiruf deos nto pdeeovl dmeae nad eht waersn is eesncrdia hlctaymip dien.arga I tgo tshi stqeuoin wogrn liygaolrin csaeube I desnrewa algno ihts niel of grseainno tbu I ntkih ni hsti esca ti lla has to od iwth EREHW het texra rresspeu is nogcmi rmof. In sith useqniot eth pt has isltcodai seityenorpnh so yuo cna tkhni ubota eth pseerurs as gmicon "dfr"wroa so ntiornsgcict plliyaceprra nsihtrspec acn nveptre na aresceni ni essuprer ni eht raapllicy db.e wvoreeH ofr hirgt aetrh faireul sith etaxr idluf si mgocni ofrm the PISPOOTE tiedioncr (wcabrasdk mfor hte tgrih re)hta and ncocnstigirt parylpaecilr tinecrshps acn od ninoght (on pipotsoe idse fo yaialrcpl )ebd - hte lyno yaw ot ntvepre emeda is ot caiesern ltipcmhay na.rdigae

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submitted by usmleuser007(464)
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toicrA ciliDsoat susrPree

  • ihHg TRP = ighh DP
  • gHih HR = hghi DP
  • iHgh VS = hhgi DP

itArco ystiSlco rPers esu

  • Hgih ailotitCnrcyt = ighh SP
  • hHgi SV = ihhg PS
  • owL cempliaoCn = ghih SP

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 -1  upvote downvote
submitted by spow(50)
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I laos ihntk atht hte oitpn engbi edam erhe is ubota naem alireatr seuerrps )(APM, hwhic is twah ogruuyorlttaea essytms laatyulc nahcge esbda o.n uesaBec eh ahs esdcrneai MAP due( to ciseaernd B),DP teh aiscilperla lilw citocnsrt to amnniita oancstnt ueprslweros/f ugthroh eth alcalrpyi b.de

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submitted by divya(75)
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i otd'n hiknt ouy ende to ihtkn lla that mu.hc olko at lal teh osopnti dan nhtki fo hwta sapenph hwne htey ,.aeAei cnsr B, ,C D and F all anc auces itietirtlsna .dueBtema anencgirsi lraclpiypare earisctesn edltnyeiif o'ned.st

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drzed  ensadIrec iclaphtym wlof doulw ont acseu saietntiirtl amede. +1
123ojm  btu ti e'stond sya sneirce"a in," ti stju yass rgleytoaur" jtadtnumess i"n. +1



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submitted by usmleuser007(464)
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.1 Artcio loiasticD rsrPeuse 1. higH PRT = ihgh PD .2 hgHi HR = hhig D P 3. ighH VS = hghi PD 2. tAcori oySclsti rreesuPs .1 hgiH rltiiyantCotc = hhig S P .2 ghiH VS = ghih P S 3. wLo pcmlnioaCe = high P S
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yex  2/.aool0Muotshiosicvnpyo/mcp1h/ctlM:ctcyirgri/ This hleps ,wooesmh het sirtf rapt buato irplclaay srerp.sue +
usmlelol  a'tsth het xep at:p:r T he vaeager ryplailac ochtsrtiady repurses si tienrdmede by atrrliae dan ovesnu serurssep PA( and )PV, dan by het rotia of rcppoiyttals-oer-alp scrstnseiae .)R/AR(V nA eesiarcn ni irthee ilaerrta ro esvnou rsreupse will iseenarc aaiyllprc persrue;s hor,vwee a vnige enhagc ni PA si ylon ubaot iheotnff- sa efctfieve ni ingchgan CP as eth aems uesolatb ceganh ni P.V euaescB osvenu eatscsienr is larleiteyv ,wlo nhseacg ni VP rae lriyeda rsettatnimd ackb ot het aalpir,ycl and en,orvsceyl uceesba ieatlarr catsenisre si rlleayievt high, ecsnagh in AP rea oyolrp rnttmsedtia nodeatswmr to eth lrayilc.pa +1



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