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Retired NBME Free 120 Answers

free120/Block 2/Question#17 (reveal difficulty score)
A 6-year-old girl is admitted to the hospital ...
Myeloperoxidase 🔍 / 📺 / 🌳 / 📖
tags: biochem repeat

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submitted by itsalwayslupus(48)
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mrFo tmPohaa .Ch 2 .pg :41 OPM icncefiyed erltsus in ceedetivf rcinoosven of 2O2H ot Hl.CO dneaeIscr kisr fro daidCan fisnxn huoahl(tg msot tanipest ip.ytcmastom)a tbuloreiN atilzueotrm tset is lnoram ubcseae het tyseiorarpr sturb si yaaulctl litls i.tcatn Tihs ineptta has addainc ciitenfon and leddeay, utb itsll cna lilk hpats a, hcwhi ynisemlge oges nolga tihw eht acft taht eht roearytpirs rtusb si llsit tcn,ait ubt htuwiot OMP it amy eb nedehrdi a letli.t

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namesthegame22  i!ceN Ye,s the TBN stet si aorlnm hwti DMOP. If ti ,says "A rntelboui imzoaltetur stet whoss dfciiente curitoend yb aleycusnogrt" = !GCD +

  • Myeloperoxidase deficiency (MPOD) is a common inherited immunodeficiency syndrome characterized by the inability to produce hypochlorous acid within phagolysosomes. The disease is typically mild and may present with recurrent Candida albicans infections.

  • CGD is caused by NADPH oxidase deficiency and results in impaired intracellular killing of pathogens. This presents as recurrent pyogenic infections with catalase+ organisms such as S. aureus with normal concentrations of leukocytes and immunoglobulins.


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submitted by amy(4)
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oS thta si to asy TBHO (NADCPDGH daeosix cidneficye) DAN oeodpyreMsaiel ecinedyifc pieerpsssdo ot cloitate-spisavae gub cnnioitfe.

2FA200 90P1 lony zipdeaesmh no CDG" tptanie aer ta ersdciane skri orf netofiicn yb sta+alcea peceiss pbeclaa of grlitaznneui irthe nwo 22H,O aelgvin hcsatyogpe thioutw RSO ofr ihifgtgn "cointf.ine uBt aarnylepp,t gcrncdioa to hist n,oesuiqt tsih etetmanst olhds teru ot esleMoaiyoeprd dneciycefi as wlle

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submitted by ilikedmyfirstusername(19)
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yhW ont esrepdxiou dstasemui? stI eht setp higrt in tnebwee PDAHN ccnioh(r ogrlmtusunaoa aseid)se dan OMP

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ilikedmyfirstusername  I esugs tath lduco eapinytlotl eminatsf sa na vnee swoer yeepoptnh ni ?DCSI +1
thekneesofbees  Ist cuaeseb DSO ormfs 2HO2, tbu 22HO is enobrk wnod by selataa.c nieSc pStah euAurs is casaaetl ie,stoivp it ondt'lwu be dilkle by it .wyyaan +7
minion7  efos@tenbehkese ,,,,, os fi etpinat sah SOD FECCIEN,IYD he tanc arteneeg ,2,0H2 so he si muhc reom stuselbpiec to tge ildlek by in?osamrg? +1
topgunber  Teh tifsr ihtng to kpee isg:ratht scraotnei ni WBsC ear netam ot icesearn .SO.R. ehilw nitacsroe in hetor secll era to teg rid fo .RS.O. eruoeixdsp is mhuc goternrs tahn 22oh nd(a is whta eew'r tgetnis twhi het prsetrorayi busrt estt for HGDCPND-A eOxisda ein.f)yecicd diSe ote:n DSO eycdniecfi oulwd estmnafi sa olu rghe'gis idesaes A)S(L escubea uidoepxser is os ictox it sdegaam hte lscel hA.teeeftmrsvsle SDO swkro no O, it kmeas 22H.O axsMroeopiyedel steak O22H nad rustn it ntoi hbclae (O)ClH-. The qunoesit si giiynplm thta HOTB aadncid nad htasp nncota eb delkil by ihts etni.atp They ear thbo aesatacl pevisoi-t tshi means hatt if the ptnitae cta'n nutr 2HO2 noti eth rgsnetro CHl-O thne eht aseaalct iipvstoe rgmsosina anc juts untr h2o2 into awetr adn .engoyx hpoe tath keasm ss.ene +3


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submitted by mdmofongo(0)
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ylMisexraeodpeo is hte nlyo one taylclau vienodvl in knmaig efer .adrsilac teCasala eskam O22H ntio twer,a xroidpeeuS iusastdem lmaeiisetn oxygen driasla,c LHD semka aaeltct (on role ni iaerbaltc inlk,g)il adn NO yths,esan kaems ON.

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b1ackcoffee  I hohttug ODS losa mocse )onc(des tfaer wayptah m(aignk )oh22 ot meak Hl—CO +1
mdmofongo  wNo ahtt I tkoo a kool ta hte ahpywta aaign ouy are rhtgi. onnKwgi hsti ’Id ays htta eref dciarlsa of 2O itlls hvea a cachen to ecsua osem ad,agem sa hreew gHrndyeo odeerixp sjut sresev as a naieemdrttei rfo efer aadrlic iaooftr.nm Tuhs SDO ynfeiccedi veslea esmo talbiiercdac icntao but OMP saelev n?one +2
igurl11  So I iesmsd htis oto bc I was iknlgoo rof DAPHN xO c(b I reetnrtpdie ddeylea cioatn igtsana ahptS A sa ON ceftfe on alcteasa )+. Tenh bireylf rcnseioded MPO neht kedpic DSO dan oevmd n.o tBu POM smkae neses bc tis ednede to meak lBehac (woh teophusnlir ikl)l ;-t&g fDe =gt;& dCnadai eifot.cinn ahtW yteh mena by eadly ni tiatiycv rfo aShpt si gkantli ubota the rexat spet deened to seu eth ac'betarsi won H2O2 ot then amke la.Bhec.. tBu ujst sa the abecaitr si knaimg 2,2OH si't lsoa evngimor ti ingsu seca.aatl So it take a iletlt onlrge to ahev gnoueh ehlcba to ahve a etdcibliarac t.fcefe +


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submitted by stunna216(0)
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yhw is ehtr efrpeirlahxy nad a aknisbbi ngsi nigenma taht teehr is an UNM sn?olei

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csalib2  sdhea ,pu i nkthi o’yeru in het onwrg niqeotsu tardhe +1


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