ECGs MADE EASY
g g
6TH EDITION | AEHLERT
g g g
TEST BANK g
,ECGsgMadegEasyg6thgEditiongbygBarbaragAehlertgTestgBank
TablegofgContents:
Chapterg1.gAnatomyg&gPhysiology
Chapterg2.gBasicgElectrophysiology
Chapterg3.gSinusgMechanisms
Chapterg4.gAtrialgRhythms
Chapterg5.gJunctionalgRhythms
Chapterg6.gVentriculargRhythms
Chapterg7.gAtrioventriculargBlocks
Chapterg8.gPacemakergRhythms
Chapterg9.gIntroductiongtogtheg12-LeadgECG
Chapterg10.gPost-Test
,Chapterg01:gAnatomygandgPhysiologyg
Aehlert:gECGsgMadegEasy,g6thgEdition
MULTIPLEgCHOICE
1. Thegapexgofgthegheartgisgformedgbygthe .
a. tipgofgthegleftgventricle
b. tipgofgthegrightgatrium
c. rightgatriumgandgrightgventricle
d. leftgatriumgandgleftgventricle
ANS:g A
Thegheart’sgapex,gorglowergportion,gisgformedgbygthegtipgofgthegleftgventricle.gThegapexgliesgjust
gabovegthegdiaphragm,gbetweengthegfifthgandgsixthgribs,gingthegmidclaviculargline.
OBJ:g Identifygthegsurfacesgofgthegheart.
2. Thegleftgatriumgreceivesgbloodgfromgthe .
a. pulmonarygveins
b. aorta
c. pulmonarygarteries
d. inferiorgvenagcava
ANS:g A
Thegleftgatriumgreceivesgfreshlygoxygenatedgbloodgfromgtheglungsgviagthegrightgandgleftgpulmo
narygveins.
OBJ:g Identifygandgdescribegthegchambersgofgthegheartgandgthegvesselsgthatgentergorgleavegeach.
3. Theganteriorgsurfacegofgthegheartgconsistsgprimarilygofgthe .
a. leftgatrium
b. rightgatrium
c. leftgventricle
d. rightgventricle
ANS:g D
Thegfrontg(anterior)gsurfacegofgthegheartgliesgbehindgthegsternumgandgcostalgcartilages.gItgisgfor
medgbygportionsgofgthegrightgatriumgandgthegleftgandgrightgventricles.gHowever,gbecausegthegh
eartgisgtiltedgslightlygtowardgthegleftgingthegchest,gthegrightgventriclegisgthegareagofgthegheartgtha
tgliesgmostgdirectlygbehindgthegsternum.
OBJ:g Identifygthegsurfacesgofgthegheart.
4. Bloodgpressuregisgdeterminedgby multipliedgby .
a. strokegvolume;gheartgrate
b. heartgrate;gcardiacgoutput
c. cardiacgoutput;gperipheralgvasculargresistance
d. strokegvolume;gperipheralgvasculargresistance
ANS:g C
Bloodgpressuregisgequalgtogcardiacgoutputgmultipliedgbygperipheralgvasculargresistance.
, OBJ:g Identifygandgexplaingthegcomponentsgofgbloodgpressuregandgcardiacgoutput.
5. Thegrightgatriumgreceivesgvenousgbloodgfromgtheghead,gneck,gandgthoraxgviagthe
,gfromgthegremaindergofgthegbodygviagthe
,gandgfromgthegheartgviagthe .
a. coronarygsinus;gsuperiorgvenagcava;ginferiorgvenagcava
b. superiorgvenagcava;gcoronarygsinus;ginferiorgvenagcava
c. inferiorgvenagcava;gsuperiorgvenagcava;gcoronarygsinus
d. superiorgvenagcava;ginferiorgvenagcava;gcoronarygsinus
ANS:g D
Thegrightgatriumgreceivesgbloodglowgingoxygengfromgthegsuperiorgvenagcava,gwhichgcarriesg
bloodgfromgthegheadgandguppergextremities;gtheginferiorgvenagcava,gwhichgcarriesgbloodgfrom
gtheglowergbody;gandgthegcoronarygsinus,gwhichgisgtheglargestgveingthatgdrainsgthegheart.
OBJ:g Identifygandgdescribegthegchambersgofgthegheartgandgthegvesselsgthatgentergorgleavegeach.
6. Thegheartgisgdividedginto chambersgbutgfunctionsgasga -sidedgpump.
a. two;gfour
b. three;gtwo
c. four;gtwo
d. four;gthree
ANS:g C
Thegheartghasgfourgchambers:gtwogatriagandgtwogventricles.gThegrightgandgleftgsidesgofgtheghear
tgaregseparatedgbyganginternalgwallgofgconnectivegtissuegcalledgagseptum.gTheginteratrialgseptu
mgseparatesgthegrightgandgleftgatria.gTheginterventriculargseptumgseparatesgthegrightgandgleftgv
entricles.gThegseptagseparategthegheartgintogtwogfunctionalgpumps.gThegrightgatriumgandgrightg
ventriclegmakegupgonegpump.gThegleftgatriumgandgleftgventriclegmakegupgthegother.
OBJ:g Identifygandgdescribegthegchambersgofgthegheartgandgthegvesselsgthatgentergorgleavegeach.
7. Stimulationgofgalpha1greceptorsgresultsgin .
a. increasedgheartgrate
b. peripheralgvasoconstriction
c. constrictiongofgbronchialgsmoothgmuscle
d. increasedgforcegofgmyocardialgcontraction
ANS:g B
Alpha1greceptorsgaregfoundgingthegeyes,gbloodgvessels,gbladder,gandgmalegreproductivegorgans.gSti
mulationgofgalpha1greceptorgsitesgresultsgingconstriction.
OBJ:g Comparegandgcontrastgthegeffectsgofgsympatheticgandgparasympatheticgstimulationgofgthegheart.
8. Whichgsidegofgthegheartgisgaglow-pressuregsystemgthatgpumpsgvenousgbloodgtogtheglungs?
a. Left
b. Right
ANS:g B
Thegjobgofgthegrightgsidegofgthegheartgisgtogpumpgunoxygenatedgbloodgtogandgthroughgtheglung
sgtogthegleftgsidegofgthegheart.gThisgisgcalledgthegpulmonarygcirculation.gThegrightgsidegofgthegh
eartgisgaglow-pressuregsystem.