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Retired NBME 21 Answers

nbme21/Block 2/Question#45 (reveal difficulty score)
A 3-year-old boy is brought to the emergency ...
Synthesis of factor X (Stuart factor) 🔍 / 📺 / 🌳 / 📖
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 +15  upvote downvote
submitted by mcl(671)
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otN uesr if isth is het tirgh ayw to tkinh tabou ,ti tbu fi PT nad PTT rae ohbt ponrelog,d hits somt keliyl enmsa hrtee si a mbeolpr wtih het mocnom aptwyha aa(k afctro ).X

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temmy  ..taeyxc.li utsj gtuohht teh replbom hsa ot eb erhew etyh emte ro somherwee mliiars to bnceheh..ot het cmoonm ap2(ywTta TP1h Hprai)en 7 TP(, ia arf) r11n9W 1 0 5 2 I1 n ym heda, ohbt iseds rea oklnigo rfo eth erpetcf 10 +2



 +2  upvote downvote
submitted by msw(4)
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rthees a wrolud suoqenti klei isth ... ,, raaoxinarbv dan ohrte fcotra aX tnhiribiso poognlr pt dna TaTP tbu they ontd ctfefa rhionbtm mtie ... welih ctride rohnbimt ohirisbnit oprlogn TP TTaP nad mnrbiohT tmie , olsa andnfeirutcaot ieprnha pglsonro TaTP nad nhmTibor iTem at(cilohreleyTl ti hldous prgolon TP oto tbu ni teh estt hte PT enregat tnnoiacs arpnehi lrrusetneiza htat immezini ihst tceffe ) . rrsyo if tihs reeved ffo ouescr a eltlti

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 +1  upvote downvote
submitted by agurl1000(5)
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Cloud meoosne lnaeipx ot ym yhw ti si tFoarc ?X ekiL I aedudnrnts taht PTT nad TP are boht .evdaetle I cdkepi Frcoat X nda hnet hacengd it to yosdihl"rsy "o..f ceauebs I oguhtht wthi a cFtaor X ycdiie,fcne n'towdul uyo heav a dropgloen inthbrmo mt?ie I hitmg eb igmnak hist more ptoe,ccamlid tub esn'dto aFrtoc X paly a oler in iotrnmbh vin,aaottic so clka of ti duwol laed ot a deglonrop mbnohitr ei?tm

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drdoom  a rpneos thiw DFX ftcao(r x icndcf)yeei ilwl haev renod"oplg itnomhbr eim"t siedin rihet oydb ni( o)v,vi e,sy but tireh IITRBM_HNMEOT h(te lab )ttes wlil be lcemoyplte normal +1
drdoom  ehnw ehty nur eht bal ste,t whta yeht do si tjus dad a nchbu fo wrabl-ngo rcm?be)i(ntnao AAVECDITT bhmtoinr to yuro lapasm and nteh tocnu hte cssdoen litnu a otcl sfrm.o tth’as royu NH_TMBEIOTRMI. tcoein how fi uyo veha cdkuef pu rtcaoF ,X ti entso'd tetram beuasce teh bal yug si gaddni AR,LNOM --lfbgesh-efohtlfwan/or tvitaecad rtohibnm to ouyr asmpla msa.epl +1
drdoom  in ethor osr,wd by ganidd eht abl rntho,bim we nc"etrcvmiu" any msopblre iandleg up to DNA NLUCDGINI eht iduoncrpot fo ianntcuofl rtoi.hbmn iecn(s erypeflct onflntciau mhntboir si w’hast egbni epliudps yb hte abl yg)u. SHUT waht ITOMEHNMTRBI_ t(eh tets) is reayll aniskg si, s“I hrete yagtninh sdeiin this eapttni atth si reifinntegr iwth eth svorncineo fo g”tiir-inngie;f&?fborbn +1
drdoom  S,O waht the ttse lsuohd RLALYE eb claled si tno THNTMROIB_MEI chh(wi is cungfoisn sa h)lle tub NOAIIBI_QFGUMITONNREFM_RTOR_E_FI_DIMKER_EBRE +1
agurl1000  NKTAH UYO OS MC!UH THIS MKSEA OS UCHM !SNESE +
drdoom  ☺~☺️️ +
drdoom  s.p. I idd a itletl remo gndreia and ti esmes ielk botrmnih si eevdird form amspal dsrono (not made myeabtocinlnr in a h😁dis ryos!)r +

https://www.google.com/search?q=what+does+thrombin+time+evaluate

The thrombin_time evaluates that part of the hemostatic process where soluble fibrinogen is changed into fibrin threads. It measures the time required for a fibrin clot to form following the addition of a standard amount of thrombin to plasma.

(emphasis mine)

+3/- drdoom(1206)


 +0  upvote downvote
submitted by usmle11a(102)
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i did iths utogrhh lniota:iiemn

,ca nad D tsi;niirnc TPT↑ lnyo

B) hihwc is lauatlcy the ;PP2I vvlindoe ni qG sinniggla

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