NBME 23 Closure of the mitral valve (NBME Answers)

Retired NBME 23 Answers

nbme23/Block 4/Question#14 (reveal difficulty score)
A 61-year-old woman comes to the physician ...
Closure of the mitral valve 🔍 / 📺 / 🌳 / 📖
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+14 upvote downvote
submitted by ∗lfsuarez(160)

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rsFti haetr dousn (S1) si neagdeter by wto atehr as:lvve eth mltira elvva and disputicr .evlav rNalye uoumnsstliae glinsco of sethe svvlea mnroyall segnetrea a lsngei 1S uon.sd tnpSgiitl fo eth 1S sunod is redha nehw rtalmi and uicsrpidt lavves ecols ta yillghst feredntfi i,emst twhi uylsual hte imtlar sclgnoi fboeer srupiicdt

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yotsubato henT ywh eht fuck is ti necsibigrd a mtailr vvale snudo in eth isudciptr aaer +29

dr.xx tis' dbcegsrnii a igntsplit S1 — stinosngic of rlmati nad cupiirdts avvle leucros — atth si estb hdare at teh ptcduriis (ftle wreol arsteln orer)bd dna lamtir cri(daac ap)ex sntniegli .ptsos +40

titanesxvi ityrck qnu,ostei I ghohut wtah nuosd ti is ni eht lfet tasenrl ,odrreb os I hsoec rsipditcu ea,lvv but awth teyh eerhw agsnki sw,a wath is eth fstri moncnopet of the 1S duons +5

titanesxvi ckriyt ,oniqstue I ougthh atwh ousdn it si in eth etlf seatrln d,rrbeo so I hseco drsuiictp vv,ael tub tahw yeth erhwe ngiksa s,aw twah is teh itsfr oetocpmnn of the S1 duson +1

drzed tI lsontudh' etmrat werhe yuo hear a tpsil snoud. orF ,apeexml no etmtar rewhe ouy eulsuttaca no hte atehr, teh snodce rahte snudo in a thhaely ddiinlvuia wlil lasway be A2 ehtn 2P w(hrethe uyo aer ta hte mlaitr lgnnteisi ptos ro hte arcoti gitlnesin tTp)ehos eyk si gczongiirne taht teh grhit eidds vsvela ni yehtahl vdsuliiniad illw awlysa escol trela g(e.. eth aetrh ndsuso are 1S ,S2 ubt emor spycicaflile M1 1T 2A )P.2 hTe neasor for itsh is pme:isl if oyu keta a aetrhb ,in uyo llwi srieacne orlpdea on the gtrhi sied fo eht re,hta nda shtu teh eerrtag olmveu liwl uscea a deealdy roelusc of teh vv.ale Tish si hicsolypoig iitplg,snt and si btetre artapceidpe ni the ryopnlamu dan caitor vsvlae ueceabs hety era nrude gareert rseu,pers dna stuh r,eould tbu ti acn laos eb deahr ni teh sitfr ahetr .odnsu +16

alexxxx30 sey !a!reegd siTh qiotsenu si slmoyt agniks fi ouy rsandundet a efw ibacs ishgnt eiggnardr idaorc iop.hys ehT etfl sied fo eth trahe si hte hrehgi esrurspe isde so etfl sided valsev llwi celso .first eTh higtr dise fo hte ehtra si teh lrewo epserrus se,di ihwhc manes htgir esdid elsvva ilwl oenp .irfts eft[L elcoss t,irfs igRth esonp ]ls.S.fn.dct,iryeo ti rrqseeui uyo ot kwon awth S1 dan S2 soudns mcoe f.omr 1S is eth ptrsamciril/utdi avlve snogilc and 2S si teh ymApnolo/uriacrt velvas oicn.lsg So lryael het niequost kssa wtah is teh itrfs oocmnentp of 1S irtam(l or purcstiid sesclo srft).i dAn encsi we wonk ttah teh lfte ised wlli ysawal ocsle t,isfr ti tmsu eb milatr lavve c.luosre rSyro if ahtt asw a nogl tanaoeix.nlp +16

jesusisking hsnkTa a3lxx@0x,xe oyu eth !nam RPI oebK +

yesa ddez@r snelus tis' cadlaiaopxr inlgistpt Ex] coirat ntose,iss hten it si tcroai evalv lgocsni irsft at S.2 +

This video explains it https://www.youtube.com/watch?v=kvQ2IU3ILRo&list=PL3n8cHP87ijDnqI8_5WQlS4tN37D6P4dH&index=8&t=52s

+/- uasid(68)

I think by 'left sternal border' they're referring to the Erb's point - left 3rd ICS on sternal border.

Even I got it wrnong thinking tricuspid area is being described!

+/- abhishek021196(119)

+4 upvote downvote
submitted by ∗gh889(154)

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Gerta vodei on S1 nad i'ts pst!i!l

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+3 upvote downvote
submitted by ∗rolubui(17)

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heT yaw I rrbeemme ,it S:1 rMtlai pam&; usitrcipd bc olodb geso rmof aatri to evsitlencr hent mofr ilrtevcnse ot eiusodt eht htrae t-;&g- 2.S Now, nweh ouy vhae a tlpSi 1S het ayw I nktih oabut is atht nehw you lanieh oyu heva txear ldoob giomcn itno teh tghri dsie of het rthea os eth idrtpicsu aelvsv essocl treal nad esucas a ipstl 1S noup eioriprnast. opeH ttha .sphel

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+1 upvote downvote
submitted by ∗yogi(19)

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Q: tipSl S1 darhe erov efLt nlretsa ebdror - pirdtsuic .area tFrsi noeotmpnc fo A:? S1 gintyhan (CM in BRBB) ahtt scaesu delaeyd ulesorc fo idsrutpic evval edmrpaco ot mlitra v-aevl ilwl ueacs itpls S1 wiht daeeydl T1 nda lyare M1 dreha at druipcsTi reaa.

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+1 upvote downvote
submitted by usmlehulk(7)

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eePlas eard eht lsta tneceesn fo teh os.euq tin I nihkt eht slipt mhgti eb abeeucs of bR.,b tsih acseus the alirtm and cudtrpsii vaevl ot solce ta ieetrnffd .mesti

o-s ihhwc fo hte wilofgoln tebs pnelasix eht tirfs otpoenmnc of eth ahtre snudo iltps( S).1 h loudS eb teh tralmi leavv oscerul reeobf eth sudiitrpc lev.av

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