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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 rvey raiilms qitnoseu I vahe nsee ni Qsnkba lilw ask ywh a ipanett ihwt tgihr erhat lafreui odes not dopleve admee nda hte sraenw is sadnciree alchipymt g.aenardi I gto sith sutneioq gwonr inraoiygll usbacee I seadrwen lnaog hits nlie of sroaeginn tub I khnti in thsi scea ti lal sah to od iwth HWERE hte eaxrt pereusrs is cniogm rf.mo nI ihst nuqteois the tp ash atcdsioli heiospeyntnr so you nca tkihn atubo the reuepsrs as gnocmi f""rodrwa so ttginorscnic lapcpirrayle sphrinestc acn rtpeven an nereaics in seurrpse in eht yaciaplrl eb.d oervHew fro itrhg tahre eafuirl itsh exrta lifud is ncmoig rofm the PPOESIOT eiionrtcd cd(rkbaasw fmro eth higtr atre)h nda ngitorcsctni aplilapycerr nsspciehtr anc od nnohigt (on opipeots eisd fo carpllayi edb) - eth ylno way to eptvren eaedm is to eirnaces apitcymhl dgaeinra.

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seagull  eTh qtesunoi aylrlec edal us ot kitnh utabo iosmtOc spreesur yb aitglnk btuoa oenrpit dan .runei I wrnedo owh nyam polepe udes tath lein of enogasnri ekl(i ?sfml)ye +20
mousie  reGta ealoaitpn,nx I ehsco tamphcily egidnaar fro hte seam snraoengi (smralii Q on tiefrndfe b)ank +9
sympathetikey  My eaogrinsn saw mcuh omre ptilsmsiic byme(a oto si)mlep but ni ym dinm, otlyscsi PB si tidreemedn yb ciaCdra utpOtu dna ioscdlati BP si intdedeemr by asoeeri.trl eeoTerrfh, awht smeoc refbeo het pciarylal adn lsgeatrue ensetscr?ia etlr.iAoesr Taths' yhw I isda thta aerli-arclpyp eirseansc.t +41
cr  eht mian ieecdfnefr enetbwe teh 2 ecsas is tath in tish caes het nttepai hsa high PB +1
link981  So in idetkerngran gleaunag the utnqiseo is lseylsaeitn signak owh gihh srspruee ni het trrieala smesyt si NOT trmnatistde ot the seuvon etsmys ch(iwh si hewer MAEDE esv.epodl) tuB oyu konw tyhe aevh to dad lal isth onif ot ytr onuscef a acbis pincpreil dna amke uyo doensc sgeus yreolusf. oG(t it grown by the ywa) beuasce fo tawh @eoerrrf siad of kQbna e.oisusntq +9
hello  re@orref whta ear you algiknt ?bouta tmphclayi iargedna is het rngwo .sa..rwen +1
hello  ok rveen .dmin i otg .ti ahrd ot drnedtunas c/b ti wsa a big kblco fo xet.t +2
asteroides  I tnhki hyte mya eb lkantig aoutb the mcgyeino eoptoasmcryn nsi:eahcmm Niu.4gfBo/en..Kct/rt/c4hnioi3sgp=rky.jtsipv/gw//4/1orewoolbtfn?.h55nl:bmobewrc snI"deea rtlearia ro sovneu rsuesrep loas uecdsni ymengoci tcoctiinrosn fo aoteesrirl nad aelplyrpicar rhtpncse,si hciwh esarsi reoltriaar tsicarnsee erybte(h iizgmmnnii het ansereic ni lcayprial )prsesure nda serdcue het oaiccmrsulvar rafecsu aare aabvialel orf iflud ec.xFregoh na eemlpax, eesbuca rvaucals tosomh eluscm in iarleatr dna ateirraorl llsaw sartconct ehnw pdxeoes ot deetlave lrrauicaavnts srues,resp tshi eoicgymn espnrsoe nssceaeri rlacrlpiayep sntaieserc nda scoteprt rcaaisiellp omfr a oanntiomctc rise ni etirh nrticlaasravu re.rsp"esu +7
stsfyt  mkaes nsees. emoestsim we seu B()tsilnoCavaCodi + iantonivdelo E)(ICA mboco to anlbace het resupsre, dan pverent eaelagk adn d.emea +

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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rpclerlaaipy eiecssnrat = rgciedinbs the eilostra.er he's tog nimilam operitn in eth einru; dna on a.ulibnm eth yek was pnaigy tiaonnett ot eht bldoo rspuser.e erPsseur si grauleedt yb teh aerscsteni elsssve as daobsr allcs it iwhch is eht erilsaerto kaa yaeplcrplira case.ritesn

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submitted by notadoctor(175)
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'vIe bene niechsagr rof ym ocerus rof shit utb ctan' esme ot find t.i ,eewrvHo teh wya I htuohtg bauto it aws that aemed hpnaesp avi teh lircpa.aiels fI hreet is iarcendes eiscnerats iav het pplearlraciy snpichster as uchm obldo tond'ulw eb bale ot gte oitn teh cll.eiraaips hTe bodlo dwolu eatdins teg uednths iav atsamnosseo ot het v.nsie Thsi aicertl romf homcloovcsypyig. eaxispnl it a ellitt beetrt: CV ysgilPohyo: uTssei aemEd and eenarGl lecnpsPrii fo lTirarcaypasln iuFdl xaEhnceg

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submitted by chagas14(1)
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yaMbe the utiosqen si edaling hwti hte nctocpe of ecygmnoi eailrarrot sctoniasintcvroo whhic si a taneohr -mentaidea hcmi.saemn Teh erp aclrayilp cpishtrne ntactocr in enrosspe to a earsi in BP. I gto eth Q ngwor ebauces I epdkci hyaicmtlp owl.f eThy veol ot go fro het hw"ta esle" eetlenm fo yna .oictp I oannct ifnd yan oesnar wyh teh lhatpmcyi ioontp coudl be ngrwo /:

cv=4opgNmno/B?n.l5.c45a/t/:tl.tecbrr.s3/sowwiposhknihsibKw/che Ck hte griefu 4.1 hTe gniaMr fo Saeyft ingaAst ademE Ftoaionmr – adeEm tSyfae soFrtac

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submitted by adong(144)
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nI dniitaod ot htaw ahs yardale eenb idsa I tknhi an npioarmtt pinot ni eth tioeuqns asw goreulryat sastnedjutm ichhw tinops moer tosradw rteiraraol o.irelngtua

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submitted by usmleaspirant2020(9)
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2ne2/f62dc:uf95y.f2o7eateplf5s.0/2t6i0b9/dabnhdce177t0cre07392de/edc0oo90t01u3dd

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submitted by ninja3232(11)
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e"nhW iaarltre rpseuser sall,f oingmyec oent si ddrcuee in ertsoe,alri snriagdcee theri sreieacstn ot lwfo and nntnmaiagii capiyrall sres.erup shTee aeonsrobitsv gussegt htat apyliacrl susrreep amy eb aldgerteu rvoe the msea eragn of erssperu ghnscea oerv hcwih lfow si uguatrotaldee ni a ingev go.ran d,deneI ormf the ta:enri"lo

.n4t:N.pivt/iw.o/hw5cnshwo3/B.sbokm54bg/K/ln

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submitted by hello(429)
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why is slamap nictcoo uspsrere nwgr?o

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rainlad  I tnikh 'ist cbeueas we oudwl etpxce to ees eosm omer tieuuoarpiiln/nrrbumaia if eht apamsl ncicoto rsrpesue ahd iecaernsd ot econesptam +1


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submitted by ferrero(48)
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A vrey mlriias neqstuio I haev eens ni bQnaks ilwl ska wyh a peanitt thiw thigr areht eifluar sdoe ont eolpdve aedem and eht sreawn si serendiac aimytcphl .ndgareia I tog sith nqiostue orngw iylaogirln ebuscae I weandsre aglon ihst nlei fo orgnaiens but I nhkit in stih seca it all hsa to od hitw REHWE het xater seuprrse is ncgimo .from In htsi eoqunsit the pt ash dtolsiaic psytnrheoein os yuo anc kitnh btauo hte spueserr sa mngioc "arfo"rdw so cctsgirinont lyiaerlapcrp chsrpteisn can tnpveer na sriceaen in eseprsur ni the allyicpar .bed evroHew for grtih ertha eiualfr itsh xrtea fludi is gmcnoi ofrm het PESTIOOP ioeinrtdc (awsbkcrda fomr the thgri eat)hr dan tgcocsintinr llprrcpaaeyi irchsenspt cna od hgnnoti no( tpsopeio dise of ilacarply )dbe - het only ayw to rnpvtee eamed si ot ncaeires ictpmahly a.ngidaer

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submitted by usmleuser007(464)
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Atiroc Dltaicsoi ePsrr sue

  • iHgh TPR = hhgi DP
  • hiHg RH = ighh PD
  • hHig SV = high DP

ircAot Stcilyos sr sPueer

  • Hhig aionytCirtctl = ghhi PS
  • hiHg VS = ihhg SP
  • wLo Caelmnocpi = gihh SP

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submitted by spow(50)
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I laos nkhit htta teh intop gbine eadm rhee si autbo nmea teailarr uprrsees MP),A( wihch is atwh rotaetraylguuo tmseyss alacltuy cghean dabes o.n Bcesuae he has sdceeiran AMP (ude ot dancersei ),DBP hte pialierlacs lilw ortnicstc to mninaati tatnoscn usfwsrpleoer/ gthruoh hte rclilapya e.db

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submitted by divya(75)
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i otn'd tinhk you need ot kthni lal that .chum olko ta lla eht potsoni dan ntkhi of twha naphpse wneh heyt c.Asainr e,e ,B C, D dan F lal anc cuesa ntiiirtealts Bm eu.tead isncngiera eaypcrriapll esisnratec nlyetdiefi sode'.nt

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drzed  dnacrIees tycahpilm fwol owdlu otn csaue riltiattsein .ameed +1
123ojm  tub it 'estdon asy "ineacres i"n, it jstu sysa ry"gteuoral djtssmueant .ni" +1


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submitted by usmleuser007(464)
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.1 Arotci Dclitsiao Prrseseu 1. hiHg RPT = ihhg P D .2 ghHi RH = ihgh PD 3. Hhgi SV = ihgh DP .2 tAcori soyiSclt ersuePsr 1. ghiH otaytCnlitcri = gihh S P 2. hgHi SV = hhgi SP .3 owL onepilCamc = ihhg SP
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yex  yiiy/hcoc2tar.cru0spil:snmo/p1otoicoM/tMvg/hlc sTih hlpes homwo,se het istrf artp uoabt ycailarpl upr.serse +
usmlelol  tha'st eht pxe :ta:rp h eT vaearge iyllaacrp cathyriodst rpusseer is rtemienedd by iarretla dan uoevns sreesprsu A(P nda )PV, dna by het orait fo -otyarpscalo-ptpirle ercsatnsise .R(/VA)R An escarien ni rthiee terarlai or ovuesn eursrpes wlli nsceriae airpcylal ps;ueresr ,ehwevor a gvnie ncehag in AP si noyl atoub oenfht-fi sa fecetveif in iachgngn CP sa eth eams eutasolb hcgnea ni VP. ucaeesB ousnev cesniaster is evearyllti ol,w csanegh in PV ear radyeil emrdasttnit kbca ot hte irlycal,ap nad soreyvncl,e seaecbu rlitaare escnesairt si yiltrelvae ihhg, hsancge ni PA rae prooly adtrmsenitt enrdastwmo ot the llay.rpcai +1


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