NBME 20 Failure of the Na+–K+ pump (NBME Answers)

Retired NBME 20 Answers

nbme20/Block 4/Question#28 (reveal difficulty score)
A 78-year-old man dies of chronic congestive ...
Failure of the Na+–K+ pump 🔍 / 📺 / 🌳 / 📖
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submitted by ∗nwinkelmann(366)

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sihT alxsipne it eayllr wlel twih a cpuetir: /oeP:.plt.pwa1handdstal/smwmehAitt/.h0l/glitmou.foiy/Asttahl2s/lw.

icHdpoyr cahnge = neo fo hte aryle igssn of acrllleu erodtnginaee ni seposren ot yirjnu tath rssetul ni mucutalnocia of rwtea ni eht c.lel oimsicp/aaihxeHy selad ot ceseead ni irboeca peinrstaori in eth rhtoiomiandc and ddreecsae APT uiptcdroon ude to raefuil of eht +aK/+N AePaTs ndiegla ot a+N nda taerw dioiufnfs otin eht lcle. ldIiandiuv btuuel lcles rapape solnlwe and eyp"tm" hwti moalts cdcudeol ueln,m sumlloruge is ylurel.lerhapc

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dickass s'ti aalycblsi fmor paahomt hcatpre 1: lcaellur nyiujr csasue swieglln +7

md_caffeiner k@dssaic yuo wyh rtaen uyo on ereyv q sme?t +2

mangotango do uoy nmea iusagnc" riufeal of hte aK++/N ATPase" insdaet of e"du to uerfali of +Na/K+ T...eAPsa" ? Teh olw PAT is deu to ced eicroba n,iiertapsro I .eevbeil +2

fatboyslim Motagnnog@a yes aeyxtc.l aN/K AasPTe tsspo kowrngi ude to the alck of PT.A I tihkn nemniwnnalk xemdi ti up +1

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submitted by ∗xxabi(293)

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ihnefSt ol elgw dy,pegrci le.hl.(o c i rnsa:oiis)e→etnehimsgeua dtec sreTdnec doAepiPuadcrto +e/Pn ecre→ddeaadsK aas +NAT 2mCupa+p ufonoic ti→s fayiidftv aNnd +a aewrt o enthti l→el c ilellewnarug slcl

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endochondral1 nca enomeos xielnpa hwo ot srocs tou eht oerht cgehsc;&tio +1

endochondral1 wtha si dirypcoh redtagnonei and hweer do i aenlr auobt it? hy w is ti ont teh lsos of aaplms mbnmerae eirt?igtny +1

shaeking draEnon,codl1h I dha het esma si.qonute I rdeit ugniirgf it uto adn stih is wath I ecam pu i.hwt heT FCH nda oecngtnsio of hte gunls si udcrenig the muanto fo oneyxg tigentg ot hte arlen ecsll. Wtih aoyhxpi tereh is edeescadr raiobec srep in dctarmohoini tiwh rdeeadsec .TAP ouhittW TsaAPe aN blusdi up nad tawre lfw.loso As rfa as the lsos of mneemrba iegt.nrity I itkhn ti luwod ecuas rllaceul idscnueortt ont sjut pcyohdri ahcn.seg hsTi si my btes gsseu. +2

charcot_bouchard beMranem egdama si iebrervrlies sgate fo raullcel jn.iyru fi emraenmb si geddama lcel si dnyig ;ma&p it illw hrsk.ni or ollytat ytesrdode by .mihtnyamli nftaoe are lsliycaepcif niagsk phciodyr sancgeh ie alurellc w.glenils wichh is teh st1 snig fo lsreeebvri clle yjirnu ued to rilefau of /aNK pmpu +2

winelover777 lo@d1ncaoehrnd htrpaeC 1 of at.moPah solA FA 1092 20p7 sedsibcre iorcdhpy trnegeoidane ttuiowh ysniag htoes taxce rdwos in the ftisr luetbl rudne errvsilbee clel uiyr.nj +1

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submitted by ∗qfever(67)

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oamPhat 1820 idoinet eagp pear4hct 1 - aClllure nrIjuy - I.II evslRbreei pam;& ervisbrieerl acrlluel rjiuny - .B.1

I hda dytffliiuc giytrn ot feigur otu waht yicoprdh neagch anems gt.h.o.uh

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bharatpillai i aswer ive' done eht aems unitosqe ebrefo on /wdulor neo of eth voprieus sNMEB dna eht areswn ot tath swa trcriauellaln aC t.canucoiumal +2

mangotango r@itahbaalilp htats' lsao r!etu Dec TAP tg&g;;&t dce vicaytti of aC+2 and aN/+K+ mupsp &;t>g alrleucl sewlgnli eir(altse lopmochigro ntfesaotimani of errsvelbei llec i),jyrnu liaihdncotrmo slilewng --- ,FA pg /7++a0 N2K AaseTP bheidinti &tt;≫ cin llraiantecurl a+N ;gtt&g;& dec ctaiyvti of a2C+N/+3a enaxhecg pmpu g;;tgt&& icn taalnlrulriec +a2C --- hsit is eht aems ywa ignidxo krwso ni hte he!atr +1

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submitted by andremosq(9)

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Qnutieos aubot elarllcu rinuyj:

dpycriHo cnghae amnse ilnwselg. atieP tn sha a pyixoch agchen oo.t

Rrieebvesl clle urjnyi: aeeDresc ATP -g;-t& eDesreac iviatyct fo +2aC dan a+/NK+ upmp ul&;-c-lrtagel inllsweg ltrea(esi olgcmihropo i)imnttsafen,ao dcmonahoilrti sil.lengw

2002A.F apg 270

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