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Retired NBME 23 Answers

nbme23/Block 2/Question#32 (reveal difficulty score)
A 2-year-old girl is brought to the physician ...
N-methyl-d-aspartate (NMDA) 🔍 / 📺 / 🌳 / 📖
tags: pharm neuro repeat

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 +19  upvote downvote
submitted by nwinkelmann(366)
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S,o rfo moes en,oras seunoitmsrtatnrre si stoimnghe vI'e LAAWSY esggtudrl tw.ih.. ablorbyp csbueea I awtsn' uagtth it elwl os eevnr aleylr eaenldr i,t jtus erenlad hgneuo ofr veearthw mxae. I ustj udonf thsi obo ugohtrh INCB adn tis FNI!TTAASC 'Ist frmo 2100 os itghm eb lod, ubt ti saw agre.t ouY nac hsacre hugthor the book dna nfdi het hpetacs.r I tyertp cmhu usjt wnte grhhuot lal of hte usorrmeitttnanre ehpatcr. osngi9pc0tvks9.it/n.nw:7mK/BwbNo.o1.///hwlhb

yM amin kyaamtsa-Gtaeewul:a t = rjoam itoeaxytcr nts.inoerreuttamr oTw yspte of tcr1 pseer)o: mreta,ptiocob smot fo wihhc ear racitnpysep iG ciwhh dasel to dderaecse DANM ectpeorr ttaviyic adn skri of cxitioxcyetiio,t ro pconatspsyti qG tesocprre ahtt ldae ot nreecisa +Na, +,K and decsdaeer taeagutml usasce aopdlteroniiaz adn ncasedrei ++gM edmpaslnteci dna MNDA reeocrpt ycvtitai adn rkis of oyiit,xcotetixc nad )2 rtpcionoio chnseanl ingducnil DNMA adn neta/MAiaAkP hnacsenl, wihhc all awlol oniscnficpe atnoci n,xiful but oynl DANM oaslwl ++Ca lxunif dna( olyn ni a ovetalg eedenpntd nrnmea rfate fiecsnutfi aditiaoerznlop has scddeplai eht ibrtionhi g++M oin ni hte cannl.he)

AAGB dan gynlcie = yiibhnoitr rr.setensunromtati 1) BAAA-G nda AAGB-C = ioincrotop ncalehsn thta alde ot lxfeu fo l,C- adn iedetps tihs isnacug rplo,tazidaioen the urnnoe ltsil tssya blweo eigstrn .alnpoteit -AAABG indnbig esti rof btbaetu,irrsa tseods,ir ,GBAA and rocpntxioi = idnies proe fo ncnal.he AAGBA- nndigib esti of ezsipnodizanbee = tdoeius of erpo of hc.nnela )2 ncGlyie chlenan is a revy lsariim C-l xeufl eann.chl )3 AGBA-B is a cpatmoobeitr leannhc thta avitaecst iG gnidale ot aecsrddee cAMP hwcih csaiaettv fluexf +K ncelhsna and isbnthii +a+C ulnfxi nhlesacn iengald ot ipnzi.raoreplahyto

ceoBinig nesami = snacceheoalimt dnampeio ndocr(tnaioio fo oydb v,mteoemn r,daerw oatno,iivmt neetn,roemcrif) erinoehpinpner les,(pe seaflsnk,uew tnoitat,en eidfgen ,aoeribhv penrpnieihe ot(lesw tcaeonrctnoni ni SN,C) sulp nrtoseino ee,s(lp fswnleueak,s dsnesrieo,p xn,eitay auesan) nda ahinimets (l,rouaas toitan,net rlyegal, tusesi d,eaagm nad yma nlneicuef lbood barni .)lwof ovbO,syuil lla of itsh si ni dtnadiio ot rcngaderie oinmrnnrussitaose nad f,hglit thgi,rf dan gfhit .esneorsp

PAT adn oterh upsiern = yxaitercto nmorssasii,tn dresec-aoel whit toerh lclam-luleomes ranntriseout.setrm nenAodesi 'isnt lyacilsalsc srediodecn a runsateeormntrti euacebs it nis't lerssddaeteero/ ni a++C dteepdnne nram,ne utb deiverd ofrm ATP erofbe vgihna na ieroxyttca ip.tatonle

yeohAetilnclc = maorj rnernsmreouiattt oevdlvni ni ssunosanmriioretn vai aminsucr and iicitncno tscrepr.oe

itepdPe strtmnersnouitaer = lcomynmo eeadsrel as eerpippdto gealrr roeprsrcsu atht are leadcev by sicpceif meynzes ttha weer ni eht amse useermaoirttntrn icsleev puno reeel.as viFe ytpse = ugb/train ,pedeistp iipdoo pepdiset, tiirypatu sdi,ppet myhpcalaoiht rlgainees ,rheosnmo and oeths not ifli.cessad elmpasxE = ruprseroc htat visge resi to bscusetan P puapcp(mhiso, cxo,erneto nad GTI adn eaedlser rfom malsl dtmariee SPN C eirbsf atth airtstmn pnai dna rematuetper o,fintinorma weuforpl ,yvihtonesep hietinidb yb opoiid ,dsetpip)e nienkriuon ,A rpeoeitdeunp ,K and odreiptupene a,gamm and oiodip dspeepit gdniulinc nlatp silaadolk ke(il eirmnoh,)p nheistyct ioodip ,deisetivrav nad eh,drniosnp hdsyp,rnnio nda kleapinenh.s In enagerl idpooi eesidptp era nepsdsarest .i.e( alieasang imame,sc)hn dveolvni in mlecxop osihaevbr aexl(su tcnrtoa,ita rs/esgiambesvsguiievs e)va,rhosbi adn clptidimea uohhg(t ont i)ieientdvf ni trishipycac od.rsriesd

erall,vO eetrornsitrsamtun = pyte teysp: l-lmascmeeulol matrstrstein adn edpurnioe,pset hreew olseuaecsl-llmm ramrssntiett rae retafs dan etdeiam driap yapnctis naroisnmsist (e..i enraogdn NSS ftthhi/igglfrhitfg/ ckiuq np,)sreeos eerhw sa drsetepeuoipn onga(l with gioclbio ieamns nad osme mslal umlceelo airnres)mttts ear wesrlo nad eetmdai aarg,udl rpnlgoeod u.nsrmoroisisnneta

emoS tpsiu:erc teeeawtttklri._htnmfeo_bao_pprnte/psdhtci.u.u/nned:wumasdheru/iomswk/preo/ivrv, 2e63isidtrc6hsfp43nwt-4-t--lci/opag/Bpr08ths1/-sgAe2s3sggf/a4dfBArPerrb.ui7.-lfrm1oaune9rTdwgG/rela10eai1ae6prou3e6-at-:/018bdp/tb0ioccben025wheeaR, dna db322/9--e.wet0atUalrp/a;i/ww1/hahf5fsba.e&gcne0t7a-84ib-ge1rui1phtse-g=gx6-rnw/folae1fmil/gtxda-.e6#5b_en:3ldb-s=dd

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sweetmed  ihsT is igaamzn. thank yuo +
sweetmed  hTis si aazmgin. hntka uyo +
paulkarr  aW..o.h +
brotherimodu  thrSo edovi osoenme pdsote from NE2M1-B rswna:se Qbowt?pa4tsh/uc.-=/yowu/ewuhHt:owc.Dmzvtv2w +6
dorischang  iDt'dn fnhsii gnraedi iths, but it oloks weaosem +3
kcyanide101  If uoy nnwaa wtire a etxt kobo ujts ysa so.o..l.l :) +

  • effect of glutamate antagonist on pt with acute cerebral infarction = targets NMDA receptor

  • decreases calcium entry into neurons = decreased excitotoxicity = promotes recovery from acute cerebral infarction.


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 +19  upvote downvote
submitted by sympathetikey(1600)
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Tuhog qoetnius.

Rceall ttah ntMemenai h'ms(eearzli r)dug is a MNAD peRetorc nAotsgtain taht lehsp npvtree icexyoitxottc by Blcnikgo 2+Ca rynte. s'hatT who I rmeeremb sit.h

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veryhungrycaterpillar  t0.1.i/ocwun.hjw3go0rtrnete9o/ho/ps9nwst:/sc/t/raGt er elttli dae,r adn htsi is eth parpe yhet eryptt umhc dsbae isht iutonsqe .no +
veryhungrycaterpillar  knidLe het gwnor re.app tnaeM ot ilkn siht eno: w/.5Mbln.ti/smac:ieiws/pwC6h6.0vtPg7.ohpmn/ncc/l/rt28 +

a picture for better understanding https://2e.mindsmachine.com/asf04.02.html

^ link is dead :( (they published a 3/e) but here is the re-route to the new site if anyone wants to dig in https://learninglink.oup.com/access/watson3e-student-resources

+/- drdoom(1206)

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 +4  upvote downvote
submitted by spow(50)
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  • A) ABAGA- tsoercpre etl -Cl ni
  • B) ceyliGn si edus in het alspni dorc sa na rtnhiyiiob rru;rtennmttoesia also slet -Cl ni
  • C and E) oprMiabtotec attuealmg scetrerop rea reoGipn-t lcduepo
  • fT,orehere the oyln higtn hatt luocd tel 2Ca+ in is DNAM eoctesrrp
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thotcandy  cogdnriac to ihts, 53HT si na ion achnnel iylan(m Na nda K, but omse aC) os thta asw inakd fyfe mio +


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 +3  upvote downvote
submitted by lfsuarez(160)
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MDNA rpeorcste ni tihs ecsa rea bngie duse rof long etmr iotaonptitne hinwit the irban nad otu fo all fo heetr ccoishe onyl htsi eertpocr sesu +aC

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 +1  upvote downvote
submitted by chasingdreams101(4)
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I dkeipc AMND esuaceb s’it umsrtotlaiy, tbu is heetr yan deeper aseonr orf htsi?

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tea-cats-biscuits  The Q si ctlualay ksgani hiwhc fo hte resporcet seu +Ca oi,sn and of teh chcosei negvi ynol MDNA rsecprtoe od o.s +32


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 +1  upvote downvote
submitted by adong(144)
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ouY can arwnse yb ossrepc fo iailm.notnei oittCiemep"v "ctoietinnrsa amesk uyo tkhni ytaolmtsiru NT. rCoss out BAAG and e.cyingl In eth txrcoe so uamagtetl. Mcibrttaoeop ldwuo mena et'rseh sodenc esemsensgr ndoevvil nda eth eotecrpr dluwo ton rmittsna clucam.i nceHe D.AMN

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 +1  upvote downvote
submitted by an1(114)
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sued in gnlo tmer otoitintpena ,lun(agega meymor), aMy salo layp a lreo ni egne tcoarnitrsnpi ni uneonrs

)1 DMAN si a mluatteaG trcepero ey2 utbs)p MPAA si a ueypbts fo MAND atht is niyaillit itaetavdc yb tgaulatem le sear)e3 DMAN rstorpece rae ofdnu rnae AAMP oepcetrrs tbu rae tno vdetaacit yb low sellev fo aeutalgtm salreee due to a Mg oni ‘’olignckb the h)celn 4an rqFuneet nAocti atpolniet —g;t& tnsaiolmitu of PAMA tg;—& lepisodzare ptos icntsypa nouenr ;—tg& eolatvg tdneendep Mg clkob fo NDMA percroet mrodeve ) 5 xnuifl fo aC uhtgohr NAMD —g&;t ucssae vene moer AAPM etrercpso to eb rnedstei toni eth baernmem (ETO:N MAPA si orsneiesvp to Ca nda tg ueam6t)l)a eBaescu rehte ear eorm ercsoeprt ot rsednop ot ti, the clle is rmeo osvnseierp to agtmleuta

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 +0  upvote downvote
submitted by zpatel(36)
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lla eht theros a cinoptmevoetin necsi tehy have fiii(spcptecfcyciesi ,isldna)g MNDA is teh lnoy noc(hneitcelvnseee otcpivetime p),erecotr sha a inlagd esti nad ca , an dan .e.cghme.n tectmeopivi

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hello  the istenuqo ysas tpetecivimo eicnitnts,rao i nhkit hist si fenfdiret orfm cptietvoemi nid.gbin +


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