NURS 3366 Exam 4 Questions and Answers Updated 2026

NURS 3366 Exam 4
Questions and
Answers Updated
2026
WhatBisBcerebralBperfusionBpressure?B-
BAnswerBtheBpressureBrequiredBtoBgetBoxygenatedBbloodBintoBtheBbrainBtoBrefuseBth
eBcells.



WhatBhappensBifBcerebralBperfusionBpressureBisBtooBhighBorBtooBlow?B-
BAnswerBItBcanBleadBtoBcerebralBedemaBandBincreaseBICPB(pressureBwithinBintracrani
alBcavity)



PathoBofBtooBlow/highBCPRB-BAnswerBineffectiveBperfusionB->BischemiaBtoBbrainB-
>BcellularBhypoxiaB->BcellBinjury/deathB->BlossBofBcellBmembraneBintegrityB-
>BwaterBandBotherBcellsBareBreleasedB-
>BresultsBinBcerebralBedemaBandBincreaseBICPB->BfurtherBlossBofBeffectiveBperfusion



ICPB(intracranialBpressure)B-BAnswerBtheBtotalityBofBpressuresBinBtheBbrainB-
BarterialB&BvenousBpressuresB+BCSFBpressureB+BbrainBtissue

veryBsensitiveBtoBlittleBincreaseBinBpressureBinBbrain



ABpatientBisBexhibitingBsignsBofBincreasedBintracranialBpressureB(IICP).BTheBnurseBund
erstandsBthatBtheBprimaryBculpritBcausingBIICPBandBtheBresultingBimbalanceBbetweenB
intracranialBpressureB(ICP)BandBcerebralBperfusionBpressureB(CPP)Bis:

A.BHypernatremiaBcausingBdehydrationBofBbrainBcells

B.BCerebralBedemaBsecondaryBtoBischemia

C.BExcessBcerebrospinalBfluidBproduction

,D.BSystemicBhypertensionBleadingBtoBincreasedBcardiacBoutputB-
BAnswerBB.BCerebralBedemaBsecondaryBtoBischemia



TheBnurseBisBcaringBforBaBpatientBwithBaBtraumaticBbrainBinjury.BTheBnurseBundersta
ndsBthatBincreasedBintracranialBpressureB(ICP)BcanBleadBtoBdecreasedBcerebralBperfusi
onBpressureB(CPP).BWhatBisBtheBbestBexplanationBforBthisBphenomenon?

A.BIncreasedBICPBreducesBcerebrospinalBfluidBproduction,BlimitingBoxygenBdelivery.

B.BElevatedBICPBcompressesBbrainBarteries,BlimitingBoxygenatedBbloodBflow.

C.BDecreasedBICPBcausesBvasoconstrictionBinBtheBcerebralBvessels.

D.BHighBCPPBcausesBbloodBtoBleakBintoBbrainBtissue,BincreasingBICP.B-
BAnswerBB.BElevatedBICPBcompressesBbrainBarteries,BlimitingBoxygenatedBbloodBflow.

Rationale:IncreasedBICPBcausesBcompressionBofBcerebralBarteries,BwhichBreducesBtheBf
lowBofBoxygenatedBbloodBintoBtheBbrain,BleadingBtoBdecreasedBCPP.BThisBdecreaseBin
BperfusionBpressureBcanBcauseBmalfunctionBofBbrainBtissue.BTheBbodyBtriesBtoBbalanc
eBICPBandBCPP,BbutBcerebralBedemaBfromBtrauma,Bstroke,BorBinfectionBcanBdisruptBth
isBbalanceBandBleadBtoBdiffuseBorBfocalBneurologicalBdysfunction



ABnurseBisBeducatingBaBpatientBaboutBtheBwarningBsignsBofBaBbrainBattack.BWhichBof
BtheBfollowingBstatementsBbyBtheBnurseBindicatesBanBappropriateBunderstandingBofBt
heBcondition?

A.B"ABstroke,BorBCVA,BisBaBslowBlossBofBbrainBfunctionBthatBusuallyBresolvesBonBitsB
own."

B.B"ABbrainBattackBisBanotherBtermBforBaBseizureBthatBaffectsBtheBentireBbrain."

C.B"ABbrainBattackBmeansBthere'sBbeenBaBsuddenBinterruptionBofBbloodBflowBtoBtheB
brainBandBrequiresBimmediateBtreatment."

D.B"BrainBattacksBareBonlyBseriousBifBtheyBaffectBbothBsidesBofBtheBbrain."B-
BAnswerBC.B"ABbrainBattackBmeansBthere'sBbeenBaBsuddenBinterruptionBofBbloodBflo
wBtoBtheBbrainBandBrequiresBimmediateBtreatment."



WhichBofBtheBfollowingBbestBdescribesBtheBpathophysiologyBofBaBthromboticBstroke?

A.BABbloodBclotBformsBinBtheBheartBandBtravelsBtoBtheBbrain,BblockingBaBcerebralBar
tery.

B.BABweakenedBcerebralBbloodBvesselBruptures,BcausingBbleedingBintoBbrainBtissue.

,C.BABclotBorBplaqueBformsBinBaBcerebralBartery,BleadingBtoBlocalBischemiaBandBtissue
Bdamage.

D.BABtemporaryBlossBofBbloodBflowBtoBtheBbrainBcausesBsymptomsBthatBresolveBwithi
nB24Bhours.B-
BAnswerBC.BABclotBorBplaqueBformsBinBaBcerebralBartery,BleadingBtoBlocalBischemiaB
andBtissueBdamage.



WhichBofBtheBfollowingBbestBdescribesBtheBpathophysiologyBofBanBembolicBstroke?

A.BABclotBformsBinBaBcerebralBartery,BgraduallyBnarrowingBtheBvesselBuntilBitBbecome
sBfullyBoccluded.

B.BABclotBorBplaqueBbreaksBoffBfromBaBlargerBarteryBorBtheBheartBandBtravelsBtoBth
eBbrain,BlodgingBinBaBsmallerBarteryBandBcausingBischemia.

C.BBleedingBfromBaBrupturedBcerebralBvesselBleadsBtoBincreasedBintracranialBpressureB
andBdecreasedBperfusion.

D.BTemporaryBblockageBofBcerebralBbloodBflowBcausesBsymptomsBthatBresolveBinBless
BthanB24Bhours.B-
BAnswerBCorrectBAnswer:B.BABclotBorBplaqueBbreaksBoffBfromBaBlargerBarteryBorBthe
BheartBandBtravelsBtoBtheBbrain,BlodgingBinBaBsmallerBarteryBandBcausingBischemia



ABpatientBpresentsBtoBtheBemergencyBdepartmentBreportingBsuddenBrightBarmBweakn
essBandBslurredBspeechBthatBresolvedBafterB30Bminutes.BTheBnurseBsuspectsBaBtransi
entBischemicBattackB(TIA).BWhichBofBtheBfollowingBisBtheBmostBappropriateBnursingBe
xplanation?

A.B"ThisBwasBaBmildBstrokeBthatBwon'tBrequireBfurtherBtreatment."

B.B"YouBlikelyBhadBaBseizure,BbutBsinceBitBresolvedBquickly,Bthere'sBnoBcauseBforBcon
cern."

C.B"YouBexperiencedBaBtemporaryBblockageBofBbloodBflowBtoBtheBbrain,BandBthisBeve
ntBisBaBwarningBsignBofBaBpossibleBfutureBstroke."

D.B"ThisBepisodeBwasBcausedBbyBaBdropBinBbloodBpressureBandBisBnotBrelatedBtoBbr
ainBfunction."B-
BAnswerBC.B"YouBexperiencedBaBtemporaryBblockageBofBbloodBflowBtoBtheBbrain,Ban
dBthisBeventBisBaBwarningBsignBofBaBpossibleBfutureBstroke."

, ABnurseBisBcaringBforBaBpatientBdiagnosedBwithBaBhemorrhagicBstroke.BWhichBofBthe
BfollowingBbestBdescribesBtheBunderlyingBpathophysiologyBofBthisBcondition?

A.BABclotBformsBwithinBaBcerebralBartery,BblockingBbloodBflowBtoBtheBbrain.

B.BBloodBleaksBdirectlyBontoBbrainBtissue,BtriggeringBinflammation,BcerebralBedema,Ba
ndBincreasedBintracranialBpressure.

C.BABthrombusBfromBaBdistantBsiteBembolizesBandBlodgesBinBaBcerebralBvessel.

D.BTemporaryBlossBofBbloodBflowBcausesBbriefBneurologicBsymptomsBthatBresolveBwit
hinB24Bhours.B-
BAnswerBB.BBloodBleaksBdirectlyBontoBbrainBtissue,BtriggeringBinflammation,BcerebralB
edema,BandBincreasedBintracranialBpressure.



ABnurseBassessesBaBpatientBwithBaBright-
sidedBbrainBlesion.BWhichBsensorimotorBfindingBshouldBtheBnurseBexpect?

A.BLeft-sidedBfacialBdroopingBandBweakness

B.BRight-sidedBweaknessBandBsensoryBloss

C.BBilateralBlossBofBsensationBandBmovement

D.BNormalBsensorimotorBfunctionB-BAnswerBA.BLeft-
sidedBfacialBdroopingBandBweakness



ABpatientBpresentsBwithBweaknessBandBdecreasedBsensationBinBtheBleftBarmBandBleg.
BTheBnurseBsuspectsBaBfocalBbrainBlesion.BWhereBisBtheBmostBlikelyBlocationBofBtheBl
esion?

A.BLeftBcerebralBhemisphere

B.BRightBcerebralBhemisphere

C.BBrainstemBatBtheBlevelBofBtheBmedulla

D.BSpinalBcordBonBtheBleftBsideB-BAnswerBB.BRightBcerebralBhemisphere



ABpatientBisBbroughtBtoBtheBemergencyBdepartmentBafterBcollapsingBatBhome.BUponB
assessment,BtheBnurseBnotesBtheBpatientBisBunresponsive,BhasBirregularBbreathingBwit
hBperiodsBofBapnea,BandBaBfluctuatingBheartBrateBandBbloodBpressure.BWhichBofBthe
BfollowingBmostBlikelyBexplainsBtheseBfindings?

A.BIncreasedBcerebralBperfusionBpressureBfromBaBmildBischemicBstroke