NBME 22 2.4 (NBME Answers)

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

+17 upvote downvote
submitted by ∗keycompany(351)

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lowF Reat = lVyeicot x noaolicsCSetr-s reAa

2 mc2^ x 20 c/emsc x 06 snic/me x 1 ,/L0001 ^cm3 = 2.4 imL/n

000,1 c^3m = 1 L

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seagull lel,W I ismesd itsh oen. I n'otd neev elef da.b +78

link981 @nypocyaemk a masll o,tpy 100 c3^m = 1 L tno m0c^130.0 1000 Lm^3= 1 L +1

hello omcneyakyp@ ohw ddi yuo edit ryuo ailniogr tnmoemc ot xif rouy ?oypt +1

winelover777 tPyter seru eyponkcay@m asw etocrcr. 1 L = 0001 .3mc^ eeOirwhst teh srwaen wludo be 4.2 +4

drdoom 1 eertnmteci si a tdaine.cs (A i)n.le +1

drdoom If we ltuipyml a inel yb rehaton enl,i ew gte a ecusrfa aar.e (A cpeie of pe)pa.r +1

drdoom If ew mtpilylu teh cpiee fo aprpe by oetahnr l,ien we tge em.luov (A .cebu A bx.o) +1

drdoom fI we llfi eth xbo ihtw a li,udf ew illw vhae 1 mL of this ifdlu. +1

drdoom If we eahv a ahtosnud of hetes s,oexb we avhe 1 L fo udlif. +1

drdoom oo,o1 Lm = 1 rLiet = o,1oo cttm³iernee +1

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

+5/- ribosome01(-3)

+6 upvote downvote
submitted by ∗nwinkelmann(366)

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eIv' rvene been doog ta gonenrivtc iutns :( lol os had ot kas my rbr.eoht He dotl em a:htt

ateicdsn × dtensiac = eatsnidc² = raae

dan,

neiacdts × decsinta × itdsecan = enatcids² × nasdteci = adenstci³ = lmveuo

aGott oelv luibpc hsoloc rfo veenr eben ahttgu ahtt ... ghsee ubsoyl(vio eI'v edno the itqanosue and fus,ft stuj nreev nbee todl ti htta tah/awty eimlps .efe)rbo ogwninK ttha esmak igufnirg tou the eiotauqn much ri:seae

Fwol rtae = etciyvol × CSA = 02 /semcc × cm2² = 04cm³ecs/

oT vtnceor ot nm/,Li utsj pti:lymlu

0c4m³sc/e × 60 mnce/is × 001m/10c,L³ = 0240 0/010L, min = 4.2 /miLn

oepH hist e!hledp

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impostersyndromel1000 ot lal ym iubcpl hoslco peeps out hreet dan( ton eth icne bpiulc hossloc in hirc ear,as the rela ibcupl cso.hs.o.l) ew dmae !it +4

angelaq11 uTkynlhalf I saw agthtu ohw to eovtncr s,utin but lte me etll oyu taht I asw OS tols no shit .neo 'stI LUSSSEE to wnok owh ot od ti fi uyo ,I( I anem )I t'ndo wokn eth ndma flaomur x.D ulovbsiOy ogt ihts oen gr,wno utb s'ti good ot wonk ttah if it eerv cemso up ingaa (and I ownk ti no)'wt I ydaealr onkw .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)

+2 upvote downvote
submitted by seracen(15)

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g,hU yro,sr gngtiet desu to hte nmia,togrtf and adctylneacil opdtse it ni het rgwno pc.lea

say,nyAw to ete,rrteia I ysaalw stju loko at the .iustn It nawts i,/Lmn 'mI nvgie ^c2m and c/msce

oS I ltuil,pmy to tge louvem uot of it m)c,3^( ethn tecrnvo eonsdcs ot .tmniesu

hu,Ts tsi' silaacbyl 22,x6x in moes psaeh or orfm earft plnicag hte cilmsdea liaapoytepp.rr odGo hting htye itnd'd dda htat cltaurapir rk,ewnil ll'I kaet ym ildermae hamt ilskls and bgu ut,o ah..ah.

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+1 upvote downvote
submitted by googaga(2)

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Testign isenttg .213 Tshi is a tets tops ot ese fi nhtgsi nu rmsac ble yb npyitg a m.tnocem hTsn.ak

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drdoom i restcep isht temaptt tub i od'tn thnik ti rwsok atth wya +2

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submitted by ∗usmleboy(19)

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hTis nusoeqit saw no my MCTA adn I ahdlgue when I saw it.

hgnTsi uyo geav ot w:okn ^cm3 = mL , ehtn how ot crteonv nsui.t

cm2^2 x 20 c/csme = m034c^ / esc = 04 Lm / sce

Form heer stuj vecnotr 40 Lm / ecs ot L / imn

40 mL / ces x 1 L / 0100 Lm x 60 sec / 1 utienm = 2.4 L / min

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-1 upvote downvote
submitted by ∗kernicterusthefrog(139)

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tusJ ni easc ahtt loyelv iltelt noiuqaet vopeirdd by ymnkyoace@p nstwa' ueqti enhugo ofr o,yu hrees' a ikln to a mreo pectlemo onaxtpilane yb nhKa d.cAyaem pdeHel me, ehwn I dolkoe ta the naeoutiq dan aisd, aawah?a

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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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