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Retired NBME 22 Answers

nbme22/Block 1/Question#9 (reveal difficulty score)
A 54-year-old man has an aneurysm in the ...
2.4 🔍 / 📺 / 🌳 / 📖
tags: calculation

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 +17  upvote downvote
submitted by ∗keycompany(351)
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lFow aRet = yVlioect x cCtsiensSaolo-r Aera

2 c2^m x 02 cecs/m x 06 mc/iesn x 1 ,1/000L cm3^ = 42. /Linm

,1000 ^cm3 = 1 L

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seagull  ll,We I mdessi shit one. I 'ntod nvee feel ab.d +78
link981  npkam@cyeoy a msall yt,po 001 m^3c = 1 L tno 3c00^.01m 0100 L3m^= 1 L +1
hello  @kocypaeynm who idd ouy eidt uyor aniorigl ntmeocm ot fix oryu pyt?o +1
winelover777  tyPret esru okpme@ynyca asw oerrc.tc 1 L = 1000 ^.3mc teeihwOrs teh neawsr wdolu be 24. +4
drdoom  1 etterienmc is a ta.sciden (A n.el)i +1
drdoom  fI we lmyipltu a nlei yb aeotnhr ln,ie we gte a rfceasu .area A( ecepi of pprea.) +1
drdoom  If ew ulmyplti teh ecpei fo perpa by onhtaer enl,i ew gte .vmlueo (A .buce A )bo.x +1
drdoom  If ew lilf eth bxo htwi a fl,udi we wlil ehva 1 Lm fo hsit f.diul +1
drdoom  fI we veah a stodnauh fo tehse sob,xe ew ahev 1 L of uifld. +1
drdoom  1oo,o Lm = 1 Lreti = ooo,1 m³centteeir +1

if one still doesn't understand to add on .. 1000 cm^3 = 1000 ml 1000ml = 1 Litre

+5/- ribosome01(-3)

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 +6  upvote downvote
submitted by ∗nwinkelmann(366)
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I'ev neevr bnee godo at ocngnrtevi uinst (: llo os hda ot kas ym rhr.boet He dolt me h:tat

caitesnd × enisdcat = eatcsidn2 = eaar

dna,

anitdesc × saedtnic × caidsnte = aicnestd2 × datecnis = dsiceatn3 = uolmev

tGtoa levo pbluci olchos ofr eevnr eneb tutahg htta ... egshe lubioo(syv Ie'v ndeo hte qosaunite nda s,utff tjus vreen ebne oltd it hatt tyaat/hw iplsem e.b)oefr inonKwg atth mseak uggfrnii out eth ioqetuan much aeie:rs

Flwo eart = ievltocy × ASC = 20 ccmse/ × m2c2 = 4m0c3s/ce

oT evtcorn ot imnL/, sujt lltuip:ym

04mc3s/ec × 60 ms/iecn × ,Lm10c/1003 = 2400 1,0L0/0 mni = .24 nLim/

Hpoe htsi dl!hpee

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impostersyndromel1000  ot all my ipulbc ohocsl eppes tou ereth ad(n ont eht iecn cubpli hclooss ni hicr ,arsea eth eral pcblui ocss.h..o)l ew mdea i!t +4
angelaq11  hlkayTunlf I wsa hutagt owh ot voenctr nuts,i utb let em llet oyu ttah I wsa SO sotl on siht .noe I'ts LSUSEES to okwn owh to od it fi yuo (,I I nema I) o'ndt konw the anmd mlufoar Dx. yvuisoOlb tgo hits noe on,rgw but si't oogd ot konw atth fi it reve smceo pu naiga dna( I wnok ti tow')n I aerdlay nkow ti. +2

This is all you need for conversions:

1cm3 = 1 ml ... thus 40 cm3 = 40 ml

So to make it faster I would do it like this

40 ml/sec * 60 sec/1min * 1L/1000ml = 2.4 L/min

+3/- majoav1(2)

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 +2  upvote downvote
submitted by seracen(15)
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Ug,h osr,ry geintgt uesd to het ni,gattomfr nad nldiyaacctle tosdep it in hte gronw aeplc.

w,yasynA to aerretiet, I asywla ustj olok at eht itnus. tI ntswa /nL,mi mI' nveig ^m2c dna e/cscm

oS I uy,mltilp ot teg oveuml tuo of ti mc(3)^, ethn onrtcve necsdos to us.nietm

huT,s st'i aysallibc 62,2xx ni msoe phesa or rofm ertfa nciplga eth smidleac airpo.yletaprp doGo nhigt heyt i'dtdn dad atht itlracapru rl,wnkei Il'l aetk my ridmaele maht siksll nda ubg ,tuo ha.h..a

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 +1  upvote downvote
submitted by googaga(2)
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egtTsni sttneig .132 iTsh is a stte sotp to ees fi htigns nu smrca lbe yb gptyni a e.ntocmm a.snhkT

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drdoom  i ceseptr stih etttmpa tbu i tn'od tinhk ti rsokw taht way +2


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 +0  upvote downvote
submitted by ∗usmleboy(19)
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sThi eitunoqs was on my TCMA nda I guhadle enwh I saw i.t

sghTni ouy vage ot on:kw m3c^ = mL , ehtn who to rvntcoe tiuns.

22m^c x 02 cme/cs = ^4m3c0 / ecs = 04 mL / ces

Fmor rhee stuj otcenrv 04 Lm / esc ot L / mni

40 Lm / esc x 1 L / 0010 Lm x 60 ecs / 1 nemiut = .42 L / imn

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 -1  upvote downvote
submitted by ∗kernicterusthefrog(139)
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Just in sace ttha ollyev elltit uenoaitq vdpdioer by cpyoyk@amen 'antsw tiequ ugohen ofr u,oy 'reshe a inkl to a oemr cmepteol tniapaxolne yb Kahn cyaAe.md Hepled m,e when I oekodl ta the utqeiano and aids, waha?aa

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If, like me, you dislike memorizing formulas, but are okay doing the actual math, I always just look at the units. It wanted L/min, and I had to get it using cm^2 and cm/sec...

Well, I know cm^3 gives volume (L) after bashing out a few conversions, so multiply it is!

Then I know to turn seconds into minutes, so multiply by 60.

Now, at this point, I knew my decimals were off, but still, 4x6 = 24, so it's some version of that. Had they included 24 or .24 as answers, I'd have actually had to pay attention to my conversions.

Anyways, I hope that helps!

+4/- seracen(15)

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