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Retired NBME 24 Answers

nbme24/Block 1/Question#15 (reveal difficulty score)
Results of a 5-year screening program for HIV ...
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submitted by youssefa(162)
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So bumren of ceass wtih iosivpte eloyogrs ridugn akeit"n" ptrneersse lrpcveanee and huolds ton be canutdeco for nhew niguactclal ptponoaiul at ki.sr iPtlonopua ta srik = tloTa nlopotipau - nvp.eerelac ignoD t,hat smu up eht nanaul ednnicceis ftel = 400 + 052 + 250 + 300 + 300 = 0105.

lpnigpyA ncinieecd fuoalrm = 01,0-00000514)(00/ = 0.25 rvoe a tlota of 5 .sayer

uAalnn = 5.520/ = .500%

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submitted by karljeon(140)
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I n'otd wonk if ereht si na iuoneqta orf ,siht utb I asbcllayi dpmupe uot eeyrv inodivis osarcs eth ablte ot get ~%5 no .ravaege

Heer ehty a4:e00r / 0,600 = 705620.0 / ,0650 = 05 40300. / 55,30 = 3.065 000 / ,0055 = .050 2095 / 008,4 = 0205.

ehT ereaagv fo heets s% for lal eth aseyr = S5 o5.%8. htat's cleos oguhne to 5%.

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seagull  godo ro.kw I odnuf sith tunqseoi noianygn dna vega up odign hoest niioncedrgs eht onatum fo itme ew rea i.evng +4
vshummy  lWle tusj ntd’o ldcuien eth tneaki ..ryea. eacseub taht mssede em .p.u +17
_yeetmasterflex  oHw dluow we veha ownnk ton ot luecdni het tnkaie ?arye moFr aveager na**n**alu n?niiecdce +
lamhtu  Do nto udnlice nkteai arye beecusa the toqiusne smet si aigsnk vaaeerg nalaun incienc.de The 0400 svoitipes ta nktaie locdu have aidreuqc HVI ,newvereh nto ujst in eth ltsa ye.ra +9
neels11  lilealytr 'dtdni htkin rehte was na lautca ywa ot gufrei siht o.tbtuu ym gtouthh scsrepo w:sa kayo neciecdni mnesa WEN eacss. os het aanunl evagrea ta het den of 5 yersa dwolu be: (# fo WEN oplepe ttah dteset itosievp ta eth den of aeyr )5 #/ ( of leoepp at thta eerw ta isrk at the nbnineggi of eary )5 t&-;-l- aka at eht edn fo eayr 405205 50/ = 4.5%9 ol sa fi ouy olok ta year :5 yll'ou see atth het ta ikrs noutiaplpo si 0804 hnwe 300 ewn asces weer odnuf hte eary rb.eefo 5005 at eth ned of yaer 4 SNMIU the 030 new sseac ta hte edn fo eayr 4 hsudol veig ouy 0457 as het wne inualopotp ta rkis. tbu ictneo atth end of eayr 5 ew ehva 4800. idk if htta smnae 05 epelop erew lsaef stvpieois ebreof ro 50 eolepp ewre addde but in dcnieneci rtcedba/eihs/htt ntod' mtst'eair t knid of elki LUWRDO ID 207.1 umnassig vearage anulna icinncede si the esma as tmvialcueu dieencinc t shi asw sujt a hucbn fo dowr i.vmto sryor fi it swa ualebbnaer ot ollowf +

A related discussion (on a question from NBME 21) is here: https://nbmeanswers.com/exam/nbme21/714

+2/- csalib2(4)

The quickest way to do this is to add all the numerator ... = 1500. Then Divide by both year and susceptible population =1500 / (5*6000) = 5%.

+2/- peqmd(75)

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submitted by jotajota94(14)
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dcieeincn = uebrnm of new saec/s nwe sc+sea aouippltno at ki.sr wne =ceass 052. pPoele at ksir thta eyra 5050 nglnc(uiid enw cs.aes In eno npiot ehyt erwe a lapotnupio at )rksi 50/2 50=50 4%9.

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submitted by felxordigitorum(12)
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Exedclu hte nktaie yra.e Add all het iiotpevs rutelss 02500+5030403++002(+ = 015.0) vediiD 0510 yb het atlot nmrbue fo ntasepti rfmo het rstat of hte nicdnciee dierp,o ryae ,1 so 0060 g--t-&; 5006/050,12=.00 tsih si the veraega ssoarc lla 5 ry.aes rFo annal,u vieidd .052 by het nbmrue fo ,syare 5 -g;-&t 5/.250 = 00.5 -&g-;t 5.%

t'ashT woh I gto t.i

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submitted by sabistonsurgery(5)
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ciendIecn is lyypcitla daecucltla sa a munbre siadeesd per edxopes ptooinalpu rpe tniu ite,m uulslya ayre. For hcea yr,ae dieivd teh plopee d,ofnu by teh eleppo dex.esop uoY arirve at urfgise fr ceha eray ebngi 4%, %5 nad 6,% vareega einbg .%5

:Q Why not tcnuo itekan ayer fro wichh the cieecnnid messe ot be ?%04

A:ns oS th'tsa het ikrct fo eth uo.qestni TI meess to iymlp eht iatekn yrae oasl ash 0400 wne a,csse tbu tsih itns' iiecedcn,n siht is enc!pleavre tWha dnehapep rhee was atht eht nloaippout of 00,010 was tno geibn ensedrec rof DIS.A Tneh you atdsret teh crnnesige rrog.mpa

iyTlypalc ni ayn cerngsien mopr,gar you iwll shseatbli hte anbseeli aceeenvlpr of hte aeisesd by sinttge lal fo eht eleagnr .punootliap uoY idnf 0040 wen ass,ec but etehs erwe tusj tceuteednd sse.ac You ecexuld ethm romf ruyo .mitrngonoi For eth xnte yare, uyo epke a chwta no hte 0060 eft,l of chiwh 400 depvoel IA.SD Yuo lltuaacec iennedcci rof iths eyar sa 6%7. nad cudlxee eesht 400 mrof the enxt ryea nda so .no

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submitted by sweetsummerblowout(0)
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ileo1/e1yshes-lsrats1m1erpisslntetar/oucbthat.de:-d1h.0ttpat-c/t0sops/ms/t

ehT tahrc on siht tsie hsswo re/tappeTwr/oaulhe/ba trci)ocrnateee.(gv Tshi qeotsnui kssa i"hliokeldo of inssmgi na is"tooaasnic - iwhch byaslclia saemn what is eth elasf tpiievos r,tae hihcw is eth niintdeoif of Tyla/peaph I .error Qs oituen emts astste ,=5la0pah0. cihwh is 5.%

tBea is ypeT II ,rrore nad uldwo eb %10 l(esaf )e.vaeignt 9%0 lduwo eb erPow )(eb-ta1

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submitted by guillo12(58)
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I no'dt onwk teh neoatuiq rfo hts,i utb I ddi siht: eTh ums fo ccidnneie pre y/ear eht sum fo breumn eairnmgia ni opianpotul. .. o.S 05,,808/0120 = 05082. ro 52.%

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