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Retired NBME 23 Answers

nbme23/Block 4/Question#16 (reveal difficulty score)
In a study of the use of ultrasonography for ...
80% ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
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 +6  upvote downvote
submitted by โˆ—yb_26(316)
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aoblmran stte slrtue mnsea htat estt dettesc crenca ;=t&g

  • 53 fo 50 men thiw srotetpa ecrnca ahve barlonam tets rteuls &=gt; n of tsp itwh anecrc = 05. tseT shwso nacrce ni 35 emn g&;=t PT5=3 >= ew cna letlcauac FN = -5350 = 15

  • 20 of 001 mne wuhiott toarteps neccar aevh lanramob tste tesusrl =g;t& FP =20 =;> ew nac celcltaua NT = 0208=100-

  • wno we cna cllaeutca cpyeistfici = )/(NNPFT+T = 008/10 = 0.8 i(n % wlil be )%80

hree si ym 44/ bt:lae [ l/pbo.e/3ct/hul/u1t.atdmporiwwqwc_/reid//3msmbounwt2rnesfecotnemott_mcsms/i_s:ste]

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smc213  xtEcaly wath I ddi! +
smc213  I eogoldg the agnnmie of banoralm tset tlsseur juts ot kmae .resu A eiptvios sett is neo ni hhwic the ltures fo the sett is rnobala;m a iavneget tset si neo ni cwhih hte te'sts terlus is .ormnal +4

This guy on youtube does a killer job on explaining all these problems. Just does problem after problem on 2x2 tables and a few other topics. The link to part 1 is added, part two you can find on the side panel I'm sure. Part 1

+1/- paulkarr(73)

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 +1  upvote downvote
submitted by โˆ—meningitis(644)
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eTh snoqutie si niugcsofn eseuabc a TURE PTIEVSOI stte strleu is ingdifn cteietdng naecrc yb SU go(es to sowh ouy ew toatg kloo at wtah hte ttse si olnogki of).r

nA LOABARNM sett intcedteg CrPa eamns ist TNO A ISITP:VOE ie: 53 uot of 05 eerw Faesl eisisPotv

An RONBMLAA sett OITHWTU PaCr measn tsi OTN A AIGVTEEN: 20 tuo of 100 TIHTOWU CrPa erwe LFSEA TEVA.NIEG

NT = 8,0 PF = y Sc:cpifei.i5t1 /FNNT(+;P)T 00+)(1/885 = 8d.4 A%n cnies it assy sbte" e"nstersepr neth %48 si tesocsl ot .%80

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 +0  upvote downvote
submitted by โˆ—lfsuarez(160)
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02 of eth 010 enm htuwito asoettpr carecn ahev anarolbm test slst.ure

ieyitpfScic = NT/+FFPP = /01002 = 80. = 0%8

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seagull  .omlsat 12000 1 / = 8%3 lyruhog 0%8 +
amirmullick3  Not user ahwt flezursa and allgesu ovbea aen.m eHer is ym eacicyniet oitSfn.ippxal = /TP.NNT(+)F siTh ttse aveg 02 lsefa osptiievs otu of 001 olp,eep and olyn 51 true enisavget tou of 50 fcin mp.cytiSiee alos ueqsal 1F-re,atP and eerh eht FP eatr seems 20% so 0%=12-00%%.80 +4
yb_26  namolrab tets rultse masen tp ash reancc ;Tgt =P& = ,53 NF = 51 )(0535,- ,0PF2= TN =08 102()0-0 &tg=; pcieticyfis = TPNTN+F)(/ = /10800 = .80 in( % wlil eb u80 )ter% gieeastnv aer 08 out of 01,0 not 15 tuo of 50 +2
bulgaine  fI you peclaer the slaeuv fmor hte untsqieo in eht beatl fo geap 752 fo FA 290,1 y62_b xinenlptaao is c.ctorer alAnmorb stte = aettpni sha cncaer = estt +ts nouQei ssay 3505/ enm hwti arseptot raencc (so lla 50 hvea rnc)cae olny 53 heva onrlmbaa etts eustrsl, ennimga tath T5P=3 sdaeesi( + ttes )+ adn =NF 51 isd(seae + tset - ecsaube yhet do evha acnecr tbu teh test saw nto lramaonb orf mhet .) 01/2 00 men iutothw rteptaso ncacer heav lobnaarm stte urlsset iaemnng lal 001 NTDO have acrnec btu 20 wohs tath they ehva ccrena hnew its otn treu os P2=0F e(deisas - tets +) dan NT 08= sae(dies - test )- +


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