CEN Practice Test 100% Solved

CEN Practice Test 100% Solved
PreloadMrefersMto:



a.MTheMvolumeMofMbloodMenteringMtheMleftMsideMofMtheMheart

b.MTheMvolumeMofMbloodMenteringMtheMrightMsideMofMtheMheart

c.MTheMpressureMinMtheMvenousMsystemMthatMtheMheartMmustMovercomeMtoMpumpMth
eMblood

d.MTheMpressureMinMtheMarterialMsystemMthatMtheMheartMmustMovercomeMtoMpumpMt
heMbloodM-MAnswerMb.MTheMvolumeMofMbloodMenteringMtheMrightMsideMofMtheMheart



PreloadMisMtheMvolumeMofMbloodMthatMentersMtheMrightMsideMofMtheMheart.MThisMvol
umeMstretchesMtheMfibersMinMtheMheartMpriorMtoMcontraction.MPreloadMisMcommonlyM
measuredMasMatrialMpressure.



TheMpatientMisMbroughtMtoMtheMEDMwithManManteriorMST-
elevationMmyocardialMinfarctionM(STEMI).MYouMareMassessingMhimMforMpossibleMadministr
ationMofMfibrinolytics.MAnMabsoluteMcontraindicationMforMthisMtreatmentMis:



a.MTheMpatient'sMpainMisMnotMrelievedMbyMmedications.

b.MSymptomsMbeganM36MhoursMbeforeMarrival.

c.MTheMpatientMhasMreceivedMaspirinMinMtheMlastM2Mhours.

d.MTheMpatientMhadMaMpreviousMMIM6MyearsMago.M-
MAnswerMb.MSymptomsMbeganM36MhoursMbeforeMarrival.



FibrinolyticMtherapyMisMgenerallyMNOTMrecommendedMforMpatientsMwhoseMsymptomsMbe
ganMmoreMthanM12MhoursMbeforeMarrival.MFibrinolyticsMshouldMnotMbeMgivenMifMtheMo
nsetMofMsymptomsMwasMmoreMthanM24MhoursMbeforeMarrivalMUNLESSMaMposteriorMMI
MisMdiagnosed.MInMthisMcase,MtheMMIMwasManterior.



TheMteamMisMperformingMCPRMonMaMpatient.MTheMrhythmMthatMwillMrespondMtoManM
electricalMshockMis:



a.MAsystole

b.MPEA

c.MVentricularMfibrillation

,d.MSVTM-MAnswerMc.MVentricularMfibrillation



VentricularMfibrillationMandMpulselessMventricularMtachycardiaMareMtheMtwoMrhythmsMthat
MareMconsideredMtoMbeM"shockable"McardiacMarrestMrhythms.MAlthoughMasystoleMandMP
EAMareMcardiacMarrestMrhythms,MtheyMwillMnotMrespondMtoMelectricalMshock.



WhenMsuctioningMduringMaMcardiacMarrest,MsuctioningMshouldMbeMlimitedMtoMwhichMof
MtheMfollowing?



a.MLessMthanM5Mseconds

b.MLessMthanM10Mseconds

c.MLessMthanM20Mseconds

d.MLessMthanM30MsecondsM-MAnswerMb.MLessMthanM10Mseconds



AccordingMtoMtheM2010MBLSMandMACLSMguidelines,MsuctioningMforMlongerMthanM10Msec
ondsMmayMresultMinMpullingMtooMmuchMoxygenMoutMofMtheMairwaysMresultingMinMhyp
oxemia.



PossibleMcausesMofMcardiacMarrestMincludeMallMofMtheMfollowingMEXCEPT:



a.MHypervolemia

b.MHypoxia

c.MHypokalemia

d.MTensionMPneumothoraxM-MAnswerMa.MHypervolemia



CommonMcausesMofMcardiacMarrestMareMknownMasMtheMH'sMandMT'sMandMinclude:Mhyp
ovolemiaM(NOTMhypervolemia),Mhypoxia,MhydrogenMionMexcessM(acidosis),MhypoMorMhyper
kalemia,Mhypothermia,MtensionMpneumothorax,Mtamponade,Mtoxins,MandMthrombosisM(pul
monaryMorMcoronary).MCorrectionMofMtheseMcausesMcanMoftenMreverseMaMcardiacMarrest
.



YouMareMprovidingMventilationsMusingMaMBag-
maskMdevice.MSuddenly,MyouMdoMnotMseeMtheMpatient'sMchestMriseMwithMtheMventilatio
n.MYouMrepositionMtheMpatientMtoMensureManMopenMairway.MWhenMyouMattemptMtoMv
entilate,MyouMdoMnotMseeMhisMchestMrise.MTheMmostMlikelyMcauseMofMthisMis:

, a.MTheMbag-maskMdeviceMisMfaulty

b.MAirwayMobstruction

c.MTheMpatientMhasMsufferedManMMI

d.MCardiacMtamponadeM-MAnswerMb.MAirwayMobstruction



TheMmostMlikelyMcauseMofMtheMfailureMofMtheMchestMtoMriseMduringMventilationsMisMa
nMairwayMobstruction.MAlthoughMaMfaultyMbag-
maskMdeviceMisMaMpossibility,MitMisMunlikelyMthatMitMwouldMfailMinMtheMmiddleMofMpr
ovidingMventilations.



AccordingMtoMAmericanMHeartMAssociationMACLSMguidelines,McricoidMpressureMduringMint
ubation:



a.MShouldMbeMdoneMinMallMcases.

b.MIsMnoMlongerMrecommended.

c.MShouldMonlyMbeMdoneMonMchildren.

d.MNoneMofMtheMabove.M-MAnswerMb.MIsMnoMlongerMrecommended.



AccordingMtoMtheMmostMcurrentMAHAMguidelines,McricoidMpressureMmayMdelayMorMprev
entMplacementMofManMadvancedMairwayMsoMisMnoMlongerMrecommended.



YouMareMprovidingMpositiveMpressureMventilationMthroughManMETMtubeMtoMaMpatientMi
nMrespiratoryMdistress.MIndicationsMthatMyouMareMventilatingMtooMfastMincludeMallMofMt
heMfollowingMEXCEPT:



a.MIncreasingMwaveformMcapnographyMreadings

b.MStomachMinsufflation

c.MTensionMpneumothorax

d.MAspirationM-MAnswerMa.MIncreasingMwaveformMcapnographyMreadings



LatrogenicMeffectsMofMhyperventilationMthroughManMETMtubeMincludeMaspiration,Mstomach
Minsufflation,MandMtensionMpneumothorax.MIncreasingMwaveformMcapnographyMreadingsMa
reManMindicationMofMefficientMCPR.