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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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romF aPmotha hC. 2 gp. 41: MPO nicfieeycd sesrlut ni dtveeefic nconivrsoe of 22HO ot HO.lC anIdrcsee srki ofr anaCidd snfxin hhuaol(tg most taientps asmmpai)ytt.oc ueirtblNo ailuroetzmt tset si lmrnoa casbeeu eht rsriayoprte strbu is clatuyal isltl inac.tt shTi attipen sha icdnaad fcnieiton dan dylae,ed utb slilt anc klil pthsa ,a hhcwi msilyneeg ogse onlag ihtw hte catf ahtt eht spatreiryor bsrtu is lltsi ctnti,a utb wtuhoti OPM it yma be ddnereih a il.ettl

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namesthegame22  cNe!i esY, teh NTB etts si nalrom wthi .PDOM If ti sa,ys "A nebulorti uotteimzrla tset osshw fitedceni euocrntdi yb on"geulsycart = 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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So that is to sya HOBT DNGC(AHDP exdiaso inifdcc)eey NDA oedMpyelaosire iydcceinef pedieopsssr ot asvitscapatloeie- ubg ofnnietic.

F202A0 90P1 lnyo dzihmpsaee on C"DG ptnitae era at ricsadeen skri orf itecnoinf yb lcae+aats ssceiep acblpae of igrnzlniteau hrite won OH22, gnevali pascteohgy uhtotiw OSR orf igghfnti t.c"finneoi uBt apalen,rpyt dncgaoric ot hist nuetsio,q isht ntttmseae lohds retu ot reelodoyiapMes iciynfecde as ellw

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submitted by ilikedmyfirstusername(19)
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Wyh not puoexierds i?stemsuad sIt the estp rtgih ni weetbne NHPDA rcnoi(ch uunogrtsaoalm i)edssea nad PMO

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ilikedmyfirstusername  I gssue tath ocldu nllpityetao taemsifn as na nvee eswor eetopynhp ni SCD?I +1
thekneesofbees  Ist abueecs DOS rmsof O22,H utb O22H is orebkn ownd yb tc.lseaaa Seinc hStpa suAeur si aaealtsc v,tiiospe ti undw'lot be ldkeil yb it .anyywa +7
minion7  @kebenossteheef ,,,,, os fi ptainte sah DOS NEID,CIEYFC eh natc eagetren H20,2, so he is mcuh mroe cubeessptil to gte lidlek yb so??amingr +1
topgunber  Teh istfr ihgtn to kepe hitstg:ra isotrcnae ni sWBC rae entma ot eceinras OR...S elwhi onairctse in rohet sllec are to gte rid fo .S.O.R xieoupsder is muhc otsrregn htna h22o dan( is tawh re'we neitsgt hiwt het rotirsryape rustb etts for C-DDHAGNP desxaOi yeneiicfc)d. Sied eo:nt DSO yeficndcie wluod ifnatems as oul ghsgi'er eaiseds A(LS) suebeac pedorisuex is os xcoti ti aemagds eht cells trmvehssftelAe.e OSD srwok on ,O ti amske 2HO2. oyrpolxseeadMei ektas 2H2O nda surnt ti onit lahbce ClO)H.-( hTe tuoisneq si iiymglnp htta HBTO aacdnid dna aphst oactnn eb lkdeli yb hits ntet.iap yThe ear hotb ctseaaal osiivt-pe shit aemns thta if eht teitpan c'tan unrt H2O2 nito eth rngosetr C-lOH then teh lesataac ieipstov arismsngo cna just runt 2h2o tnio twaer nad nxgeoy. ehop taht skmea eses.n +3


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submitted by mdmofongo(0)
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yripsoaedelMoxe si teh nloy noe uatacyll dvevonli in gankim rfee .adlrscia lasCeata skaem 2H2O itno aer,tw erSuixoped asutmiesd eitnliames nxgyoe asricl,da LHD mseak ateclat n(o olre in ltaicerab ingi),lkl dan ON ayssnhet, amsek N.O

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b1ackcoffee  I thuohgt OSD salo mseco (d)eocns ertfa wahptya mgika(n h2o2) to emak HOl—C +1
mdmofongo  Now atth I tkoo a lkoo ta the whpytaa ngaia yuo era rhtgi. wnngoKi ihts ’dI ays atht feer scriadla fo 2O sltil vahe a cnecha ot caeus semo ,aeagmd sa erehw oryngdHe exiderpo stuj essrev as a eenirtatdmei rfo feer alcdria ormfat.nio sTuh SOD neidiyccfe aesvle eoms aidlceacbirt aotinc ubt PMO esleav enn?o +2
igurl11  So I ismdse tsih oto bc I swa ookglni for PDNHA xO b(c I tenpreritde aedeydl tcnioa iasatng phtSa A sa ON cfteef on teaclaas +). nheT rlbeify reedoscdni OMP tneh deickp DSO and ovemd n.o Btu MOP emkas essen bc sit nedeed to emak Bclhae owh( tpseluinohr lilk) t;&-g efD &;g=t aaCidnd nifnt.ioce atWh hety anme yb laeyd in icviaytt for ahSpt si tlingka batou eth trexa tpse edeedn to ues the beiactsra' onw O22H to hten meak helcaB... utB sjut sa eht aitcbear is kgianm ,2O2H 'sti oasl igornmve it gsniu ca.lseata So it taek a ttleil gnorle to avhe ghueon blhace ot ahve a tarabliceicd ecfe.ft +


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submitted by stunna216(0)
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yhw si terh eepifrlahyrx dan a binsabki nsgi mngaeni hatt hreet is an MNU ?solien

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csalib2  ehasd p,u i itkhn o’yeru in the rwgno qionsute rdtahe +1


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