nursing exam
Questions and
Answers Updated
2026
AscendingBAortaB-BAnswer-
beginsBfromBtheBaorticBvalveBandBextendsBfromBtheBleftBventricleBofBtheBheartBtoBthe
BaorticBarch.
-SuppliesBtheBCoronaryBArteries
AorticBArchB-BAnswerSuppliesBtheBBrachiocephalicBArtery,
LeftBCommonBCarotidBArtery,BandBtheBLeftBSubclavianBArtery
DescendingBAortaB-
BAnswermajorBportionBofBtheBaortaBthatBextendsBfromBtheBaorticBarchBtoBtheBtrunkBo
fBtheBbody.BItBformsBtheBthoracicBaortaBandBabdominalBaorta.
CoronaryBArteriesBandBtheBmyocardiumBareBperfusedBduringB-BAnswerdiastole
P-BwaveBrepresentsB-BAnsweratrialBdepolarization
QBwaveBrepresentsB-BAnswerbeginningBofBventricularBdepolarization
,InferiorBchestBleadsB-BAnswerII,BIII,BaVFB
RCABocclusion
AnteriorBchestBleadsB-BAnswerV3,BV4
LADBocclusion
SeptalBchestBleadsB-BAnswerV1,BV2
LADBocclusion
LateralBchestBleadsB-BAnswerI,BaVL,BV5,V6
CircumflexBocclusion
TBwaveBrepresentsB-BAnswerventricularBrepolarization
SympatheticBnervousBsystemBreleasesB-
BAnswernorepinephrineB(BcausesBpupilBdilation,BincreasedBsweating,BincreasedBheartBra
te,BandBincreasedBbloodBpressure)
ParasympatheticBnervousBsystemBreleasesB-
BAnsweracetylcholineB(decreasesBheartBrate,BdecreasesBbloodBpressure,BpupilsBconstrict,
BincreasesBdigestionBandBurinaryBoutput)
RCABsuppliesB-
BAnswerRightBatrium,BrightBventricle,BSA/AVBnodes,BposteriorBportionBofBrightBbundleB
branch
OcclusionBcausesBAVBblocksBandBbradycardias
CircumflexBarteryBsuppliesB-
BAnswersideBwallBofBtheBleftBventricleBandBposteriorBportionBofBLeftBbundleBbranch
, LADBsuppliesB-
BAnswerAnteriorBportionBofBheart,BportionBofBtheBseptum,BleftBventricle,BleftBbundleBb
ranch
OcclusionBcausesBBBB's,BVtach,BVfib
PeripheralBvascularBresistanceB-
BAnsweraBresistanceBtoBtheBflowBofBbloodBdeterminedBbyBtheBtoneBofBtheBvascularBm
usculatureBandBtheBdiameterBofBtheBbloodBvessels.B
ItBisBresponsibleBforBbloodBpressureBwhenBcoupledBwithBstrokeBvolume.
CardiacBoutputB-BAnswerStrokeBvolumeBxBheartBrate
PreloadB-
BAnswervolumeBreturnedBtoBtheBheart.BTheBforceBexertedBonBtheBwallsBofBventricleBat
BtheBendBofBdiastole
ContractilityB-BAnswerforceBofBmyocardialBcontraction
AfterBloadB-
BAnswerpumpBorBresistanceBagainstBwhichBtheBventriclesBmustBpumpBtoBopenBtheBse
milunarBvalves
normalBstrokeBvolumeB-BAnswer60-130BmL'sBeachBbeat
4-6BLBperBminute
Frank-Starling'sBLawBofBtheBHeartB-
BAnswertoBaBpoint,BtheBgreaterBtheBvolumeBofBbloodBinBtheBventricleBatBtheBendBofB
diastole,BtheBmoreBforcefulBtheBcardiacBcontraction
EstrogenB-
BAnswerdecreasesBLDLBoxidation,BpromotesBendothelialBvasodilationBandBenhancesBgluc
oseBmetabolism