ECGs Made Easy, 6th Edition by Barbara Aehlert Test Bank

, ECGsgMadegEasyg6thgEditiongbygBarbaragAehlertgTestgBankg

TablegofgContents:g

Chapterg1.gAnatomyg&gPhysiologyg
g g
Chapter 2.gBasicgElectrophysiology
g g
Chapter 3.gSinusgMechanisms
g g
Chapter 4.gAtrialgRhythms
g g
Chapter 5.gJunctiona lgRhythms
g g
Chapter 6.gVentriculargRhythms
g g
Chapter 7.gAtrioventriculargBlocks
g g
Chapter 8.gPacemakergRhythms
g g
Chapter 9.gIntroductiongtogtheg 12-LeadgECG
g g
Chapter 10.gPost -Test
g




Chapterg01:gAnatomygandgPhysiologyg
Aehlert:gECGsgMadegEasy,g6thgEditiong g


g
MULTIPLEgCHOICEg
g
1. Thegapexgofgthegheartgisgformedgbygtheg .g
a. tipgofgthegleftgventricleg

, b. tipgofgthegrightgatriumg
c. rightgatriumgandgrightgventricleg
d. leftgatriumgandgleftgventricleg
ANS:gAg
Thegheart’sgapex,gorglowergportion,gisgformedgbygthegtipgofgthegleftgventricle.gThegapexgliesgjus
tgabovegthegdiaphragm,gbetweengthegfifthgandgsixthgribs,gingthegmidclaviculargline.g
g
OBJ:gIdentifygthegsurfacesgofgthegheart.g
g
2. Thegleftgatriumgreceivesgbloodgfromgtheg .g
a. pulmonarygveinsg
b. aortag
c. pulmonarygarteriesg
d. inferiorgvenagcavag
ANS:gAg
Thegleftgatriumgreceivesgfreshlygoxygenatedgbloodgfromgtheglungsgviagthegrightgandgleftgpulmo
narygveins.g
g
OBJ:gIdentifygandgdescribegthegchambersgofgthegheartgandgthegvesselsgthatgentergorgleavegeach.g
g
3. Theganteriorgsurfacegofgthegheartgconsistsgprimarilygofgtheg .ga.gleftgatriumg
b. rightgatriumg
c. leftgventricleg
d. rightgventricleg
ANS:gDg
Thegfrontg(anterior)gsurfacegofgthegheartgliesgbehindgthegsternumgandgcostalgcartilages.gItgisgfor
medgbygportionsgofgthegrightgatriumgandgthegleftgandgrightgventricles.gHowever,gbecausegtheghe
artgisgtiltedgslightlygtowardgthegleftgingthegchest,gthegrightgventriclegisgthegareagofgthegheartgthatg
liesgmostgdirectlygbehindgthegsternum.g
g
OBJ:gIdentifygthegsurfacesgofgthegheart.g
g
4. Bloodgpressuregisgdeterminedgbyg multipliedgbyg .g
a. strokegvolume;gheartgrateg
b. heartgrate;gcardiacgoutputg
c. cardiacgoutput;gperipheralgvasculargresistanceg
d. strokegvolume;gperipheralgvasculargresistanceg
ANS:gCg
Bloodgpressuregisgequalgtogcardiacgoutputgmultipliedgbygperipheralgvasculargresistance.g
OBJ:gIdentifygandgexplaingthegcomponentsgofgbloodgpressuregandgcardiacgoutput.g
g
5. Thegrightgatriumgreceivesgvenousgbloodgfromgtheghead,gneck,gandgthoraxgviagtheg
,gfromgthegremaindergofgthegbodygviagtheg ,gandgfromgthegheartgviagtheg .g
a. coronarygsinus;gsuperiorgvenagcava;ginferiorgvenagcavag
b. superiorgvenagcava;gcoronarygsinus;ginferiorgvenagcavag
c. inferiorgvenagcava;gsuperiorgvenagcava;gcoronarygsinusg

, d. superiorgvenagcava;ginferiorgvenagcava;gcoronarygsinusg
ANS:gDg
Thegrightgatriumgreceivesgbloodglowgingoxygengfromgthegsuperiorgvenagcava,gwhichgcarriesgblo
odgfromgthegheadgandguppergextremities;gtheginferiorgvenagcava,gwhichgcarriesgbloodgfromgtheg
lowergbody;gandgthegcoronarygsinus,gwhichgisgtheglargestgveingthatgdrainsgthegheart.g
g
OBJ:gIdentifygandgdescribegthegchambersgofgthegheartgandgthegvesselsgthatgentergorgleavegeach.g
g
6. Thegheartgisgdividedgintog chambersgbutgfunctionsgasgag -sidedgpump.ga.gtwo;gfourg
b. three;gtwog
c. four;gtwog
d. four;gthreeg
ANS:gCg
Thegheartghasgfourgchambers:gtwogatriagandgtwogventricles.gThegrightgandgleftgsidesgofgtheghear
tgaregseparatedgbyganginternalgwallgofgconnectivegtissuegcalledgagseptum.gTheginteratrialgseptu
mgseparatesgthegrightgandgleftgatria.gTheginterventriculargseptumgseparatesgthegrightgandgleftgve
ntricles.gThegseptagseparategthegheartgintogtwogfunctionalgpumps.gThegrightgatriumgandgrightgv
entriclegmakegupgonegpump.gThegleftgatriumgandgleftgventriclegmakegupgthegother.g
g
OBJ:gIdentifygandgdescribegthegchambersgofgthegheartgandgthegvesselsgthatgentergorgleavegeach.g
g
7. Stimulationgofgalpha1greceptorsgresultsging .g
a. increasedgheartgrateg
b. peripheralgvasoconstrictiong
c. constrictiongofgbronchialgsmoothgmuscleg
d. increasedgforcegofgmyocardialgcontractiong
ANS:gBg
Alpha1greceptorsgaregfoundgingthegeyes,gbloodgvessels,gbladder,gandgmalegreproductivegorgans.
gStimulationgofgalpha1greceptorgsitesgresultsgingconstriction.g
g
OBJ:gComparegandgcontrastgthegeffectsgofgsympatheticgandgparasympatheticgstimulationgofgthegheart.
g
g
8. Whichgsidegofgthegheartgisgaglow-
pressuregsystemgthatgpumpsgvenousgbloodgtogtheglungs?ga.gLeftg
b.gRightg
ANS:gBg
Thegjobgofgthegrightgsidegofgthegheartgisgtogpumpgunoxygenatedgbloodgtogandgthroughgtheglungs
gtogthegleftgsidegofgthegheart.gThisgisgcalledgthegpulmonarygcirculation.gThegrightgsidegofgtheghe

artgisgaglow-pressuregsystem.g
OBJ:gIdentifygandgdescribegthegchambersgofgthegheartgandgthegvesselsgthatgentergorgleavegeach.g
g
9. Whichgsidegofgthegheartgisgaghigh-
pressuregsystemgthatgpumpsgarterialgbloodgtogthegsystemicgcirculation?g
a. Leftg
b. Rightg