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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 reyv lmisari qsnueiot I ehva esne ni kaQnsb iwll ksa yhw a etntiap whti rthgi traeh eaufrli soed ton vpeodle maeed dna the wnraes is disercnae alytmichp rn.gidaae I got ihst nquioest rwgon riylonigal caeeusb I weandrse lngoa hits leni fo oairsgnne but I nithk ni tish caes it lal has ot do wtih HWREE eth retax rseeupsr si ncgomi omrf. In hits toiusqen eth pt ahs slidticoa htpeseyroinn os uyo nca ktihn buota eht purrsese as coginm rra"wdo"f os nisnocctgitr leyapirpralc sirtsnhpec nac peentvr na nsceaeir ni esrpusre ni eth prllaicay .bed woHveer fro itgrh eahrt uaerilf siht txare ufidl si cgimon morf eht IOPOETSP niidrotce wars(kdcab omfr hte trghi hera)t adn cnistcitngro pyeaiclaprrl pnrhcsetis nac od oingnht on( tiseopop eids of ycalrlpia )deb - eht yoln yaw ot epvtenr eemad si to criaesen imyclhatp gdiaenar.

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seagull  Teh esointqu arlelyc dael us to ihknt uabto tOimosc urpssree by tkilgan btaou petnior dna einru. I dweron ohw amyn lpeoep duse atht einl of nesiagorn kle(i ey)ms?lf +20
mousie  Grtae entlan,oaixp I cehso imapchylt anedriga rfo eth seam ogninsera (amriils Q on fetdnfrie nb)ak +9
sympathetikey  My ogisnnrae aws ucmh remo micptilsis mb(eay oto )elmisp tbu ni ym ,mind tyilossc PB si needeimrdt yb idacCra tuuptO adn lctsoaiid BP si emiedndter yb ert.sroalei oreT,feehr thwa cmeos eerbfo eht aypillacr adn esaretglu eserasn?cti eAio.sterlr ats'hT hyw I sida htta aplcy-elrrpai itceanss.re +41
cr  eht mina idfeefcren ntbweee het 2 sseca is htat in thsi aesc eht etitpna sah ghhi BP +1
link981  oS in rgieatkrnedn lneugaga het utoeqnsi is tanlesilyse ignska who hhig eersrpus in hte itrelara tmyses is NTO titrtsenadm to eht oeunsv myetss wc(ihh si rwehe AMEDE elpedv)so. But yuo kown eyht vahe to dad all siht fino to rty ufonces a basic npecipilr and akme you cdnose sguse usoe.ylfr G(ot ti rngow by eth )ywa bcsauee fo htwa orrere@f asdi of bnaQk qs.iuesnto +9
hello  rererof@ hwta rea you alitngk tau?bo cimathypl drgienaa si teh wrgno s...wrane +1
hello  ok evenr idnm. i ogt .ti dhar ot enrnduasdt c/b it asw a gib olckb of ttx.e +2
asteroides  I nikth ethy yam eb gnitakl autob eth mgnyeioc rpmoasnyteoc miensamhc: i=o.i1h4gb5Ktoy4/t.ovNfnmp/rho/iewu5wrgop3/b/snl.g/?wtls.eieccjft:o4/nBnkbr.ds"eaIr cne ertlaria ro vesuon surspree salo cnseidu cymonieg oontcisrntci of esrteioalr adn aayirrpeplcl pnsertis,ch ichwh asrsie alaterriro scsaeterni y(hteber niimizmgin het aeriscen in yalpricla e)spuersr dan reduecs the rusmvlrciocaa euarcsf eara blavaeail for lidfu aengcexhFor. eael,mpx eecaubs rlaucvas mshoto eumslc in ralteair nda raorerilat walls rstatccno ewnh soepxde to etlavede sarlctvaiunar r,susserpe hits ceiygmno serpoesn acesniesr alryaecilrpp snsactriee dna eotscprt aaecpsiilrl frmo a cttmoancnio rsei in iehtr anaticlsrravu "rers.pues +7
stsfyt  amesk nees.s etessimom we eus o)CdCtivisaol(anB + dniteolinaov A)IC(E bmcoo ot ebancla the ssrp,eeur dan ernptev gelaeak dna .amede +

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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rreaaclyplpi esaicesntr = cirgeibnds the otiesrrle.a e'sh tgo iammlni ptnerio in hte nue;ir nda on imalbun. teh kye saw aipngy ionatntet to teh doobl p.useserr ePusrrse si agteelurd by eth sceintsrea slsvese sa dbsora lclsa ti whcih si eht teleoairsr aka elpplycarria .casitenser

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submitted by notadoctor(175)
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ve'I nbee eihcnrsag for ym seocru ofr shit tub 'tcna mese ot dnfi ti. re,voewH het ywa I thtuohg uatob it wsa htta eedma saphpne aiv het .ielaricpsal If teher is rndceesai enictsrase via het prpliaryclae sphctirsne as ucmh ldboo ndtuwol' be beal to egt into hte r.eiclisplaa Teh bldoo luwdo ndseiat teg uhednts via otnoemsaass ot eth sev.in shTi lrticea mfro .ohylvsipgyocomc plieansx it a ttleli erteb:t CV g:yoolhPysi uTisse aeEdm nad erGelna psPeinrlci fo alrlTiscypaarn lFuid xnEegahc

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submitted by chagas14(1)
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yaeMb hte ieotunqs is naleidg ihtw het ctonpec of gecmynio airloraetr sonsottiiaocnrcv icwhh si a onrtahe eiea-mantd e.mhcmasni hTe pre lrypclaia cnieptrhs crnatcot in eosseprn to a siaer in B.P I otg teh Q onrgw euscaeb I ceikpd tlmyaphic .ofwl yhTe lveo ot og ofr eth a"thw "seel lnteeem of ayn c.ipto I caonnt nfid ayn aenors hwy het mtliacpyh inptoo odluc eb wgorn :/

hilocohpn/3pbai.:Boc=5srn./g/4l/rcv.swnkwbstK.t/mN45osiwet?Cc ehk teh guerif .41 hTe ngaMir of teyfaS tsganAi Edame motinaorF – Emead taeyfS astcoFr

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submitted by adong(144)
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nI itiodnad ot wtha hsa eylaadr bene aids I kntih na pnmirtota ntopi in eth qenostiu asw olertauryg eatjtndssmu whcih itpson ermo atdowrs aleirtraor tn.egiuroal

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submitted by usmleaspirant2020(9)
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lao2279nr.dea9p072od/c2b1i6t/05/fttut92h.fdd/e0e07c0ucs0cfbf037ye53dondd6e12ee:9

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submitted by ninja3232(11)
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"eWnh iarartel purreses llsa,f einyomcg enot si ecdudre ni ltieorsra,e sceignadre tireh ntaeericss ot wofl adn nainiiatgmn aplaiclyr .eseuprrs eeThs sbivnretosoa ustgesg thta aalclypri reseursp aym be alrutgede rveo eth msea ernga of pesruers hncgsae evor cwhhi flwo si aeretlugoutda in a gvnie .ogran edndI,e fomr teh e"toilra:n

.B4Kv4klwht53b/ph.swonnni.iscm5bN:o/g./o//tw

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submitted by hello(429)
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hwy si saplma cooctin spreuesr ?gwonr

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rainlad  I hktin 'tis escabeu ew ludow tcxepe to ees mose erom batiorraii/mlpinuunaure if het aapmsl ncotioc puresesr dah senarcdei to mtnaepeosc +1


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submitted by ferrero(48)
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A yver isalirm uoqntsei I heva enes in nkabQs iwll kas hyw a ttapien iwht htrig ahetr faureli deos tno lpvdeoe amede adn the aenrws si sceeirnad palmytcih aeridgn.a I got shti uieqonst onwrg iynoliarlg eueacbs I esewdnra gnlao hsit ilen fo esnoigarn utb I ktihn ni htsi scae it all ash to od hwti EEWHR teh taexr ssrrpuee si icmgon mof.r nI tihs oetiusnq eth tp ash clidisaot eyhsnritoepn so yuo cna thkin aoubt teh sueprrse as gocimn "dawr"fro so ciortstgnicn eyappliralcr ihnstcprse nac vpetenr an reancsie in esseurpr ni het aiaplrylc .bed ewHeovr fro itghr ahret ialerfu ihst xarte lufid is ocmngi ormf hte TOPIPSEO ntociredi r(abdcwksa from the itrgh areht) dan ritticncongs rlaepiyalprc itcrspenhs cna do hgitnno n(o tpeospio sedi fo llpaiyrac ed)b - het ynlo wya to tpnreve admee is to rscineea iythmalcp .aadgnrei

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submitted by usmleuser007(464)
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ociAtr cailtsDoi Pr ursese

  • hHgi PTR = gihh DP
  • Hhgi RH = ghih DP
  • ihHg SV = ihhg DP

itcAor ioScsylt ePer srus

  • Hgih rtytiatolnicC = ihgh SP
  • giHh VS = ihgh SP
  • wLo pCenacoiml = hhgi SP

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submitted by spow(50)
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I saol khtin ttha eth nipot nbige dmea ereh si abtou nema etlrarai euersrsp M,)PA( hihcw is ahwt tutelruoaaoygr ystmsse caulyatl aengch edbas o.n sauceBe eh ahs cinesaedr MPA eu(d to arsdeneic ,D)PB eht iaclisarepl iwll ncttrsioc to mntanaii ntosnact uss/pfrweroel hghrotu het lcrlaiapy ebd.

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submitted by divya(75)
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i o'dnt ktinh uyo ende to hntki all taht .chmu kool at all teh tnspioo dna nhitk of whta hpeanps when eyht riA,s ace.en B, C, D dan F lal nac aecsu nrietstiatli e.ematd uB isinragecn epyciaallrpr aietrnsesc eeiylintfd send'to.

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drzed  aedIrcesn clmathypi lfwo wdulo ton sucae telasrntiiit .emaed +1
123ojm  utb ti otesnd' say aeecsir"n "n,i ti utsj sasy "orlgyraute sdtmjnesuat "n.i +1


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submitted by usmleuser007(464)
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1. coAtri ociaitsDl suesrePr 1. hgiH RTP = hgih DP 2. hHgi HR = ghhi DP 3. gHhi VS = high DP .2 Atirco tSioyscl susrrePe 1. hHig lycrotCtiiatn = hgih PS .2 gHhi VS = ihgh SP .3 Lwo laipmoeCcn = hihg PS
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yex  /0olyolhprpicni/io2o1ov:stcc.t/r/iystguacmhMcM shiT elhps e,wsomho eth stifr trap batuo ryaplailc .rpsesrue +
usmlelol  hstt'a eth xpe par:t: e Th egarvae lcipraayl ytaoctdishr prseerus is meeitendrd by ritaelar nda uensvo eserrpssu (PA dan )P,V dna yb hte ratio fo oa-to-ritecyplpprsla ceraeisssnt R/VA)(.R An esnicear ni iereht aeatrlri or nveuos sreserpu lwil aiercsen lcparlyai pruse;ers eh,evwor a vgine gacenh in PA is noly tuoab tfeniof-h sa vetfefeci in nahnggic PC as teh esma ustolaeb haecgn ni .VP eucBaes seonuv rcsnsaeite is lreltvieay ,wlo scghena in VP rae iydlera ttdtmraesin bkca ot het l,cpalraiy adn clyr,vesnoe bcueeas aetliarr irtescanes is evtyrelial gh,hi cgsenha in PA era lpoory nrdmaiesttt smatroenwd to teh lapic.raly +1


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