Test bank for ECGs Made Easy 7th Edition by Barbara J Aehlert Chapters 1 - 10 

Test bank for ECGs Made Easy
7th Edition by Barbara J Aehlert
Chapters 1 - 10

,ECGs Made Easy 7th Edition by Barbara Aehlert Test Bank
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Table of Contents:
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Chapter 1. Anatomy & Physiology
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Chapter 2. Basic Electrophysiology
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Chapter 3. Sinus Mechanisms
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Chapter 4. Atrial Rhythms
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Chapter 5. Junctional Rhythms
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Chapter 6. Ventricular Rhythms
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Chapter 7. Atrioventricular Blocks
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Chapter 8. Pacemaker Rhythms
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Chapter 9. Introduction to the 12-Lead ECG
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Chapter 10. Post-Test
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,Chaptertr01:trAnatomytrandtrPhysiology
trAehlert:trECGstrMadetrEasy,tr7thtrEditi

on


MULTIPLEtrCHOICE

1. Thetrapextroftrthetrhearttristrformedtrbytrthe .
a. tiptroftrthetrlefttrventricle
b. tiptroftrthetrrighttratrium
c. righttratriumtrandtrrighttrventricle
d. lefttratriumtrandtrlefttrventricle
ANSWER:t r A
Thetrheart’strapex,trortrlowertrportion,tristrformedtrbytrthetrtiptroftrthetrlefttrventricle.trThetrapextrliestrj
ustrtabovetrthetrdiaphragm,trbetweentrthetrfifthtrandtrsixthtrribs,trintrthetrmidclaviculartrline.

OBJ:t r Identifytrthetrsurfacestroftrthetrheart.

2. Thetrlefttratriumtrreceivestrbloodtrfromtrthe .
a. pulmonarytrveins
b. aorta
c. pulmonarytrarteries
d. inferiortrvenatrcava
ANSWER:t r A
Thetrlefttratriumtrreceivestrfreshlytroxygenatedtrbloodtrfromtrthetrlungstrviatrthetrrighttrandtrl
eftrtpulmonarytrveins.

OBJ:t r Identifytrandtrdescribetrthetrchamberstroftrthetrhearttrandtrthetrvesselstrthattrentertrortrleavetreach.

3. Thetranteriortrsurfacetroftrthetrhearttrconsiststrprimarilytroftrthe .
a. lefttratrium
b. righttratrium
c. lefttrventricle
d. righttrventricle
ANSWER:t r D
Thetrfronttr(anterior)trsurfacetroftrthetrhearttrliestrbehindtrthetrsternumtrandtrcostaltrcartilages.trIttristrfo
rmedtrbytrportionstroftrthetrrighttratriumtrandtrthetrlefttrandtrrighttrventricles.trHowever,trbecausetrthetr
hearttristrtiltedtrslightlytrtowardtrthetrlefttrintrthetrchest,trthetrrighttrventricletristrthetrareatroftrthetrhearttrt
hatrtliestrmosttrdirectlytrbehindtrthetrsternum.

OBJ:t r Identifytrthetrsurfacestroftrthetrheart.

4. Bloodtrpressuretristrdeterminedtrby multipliedtrby .
a. stroketrvolume;trhearttrrate
b. hearttrrate;trcardiactroutput
c. cardiactroutput;trperipheraltrvasculartrresistance
d. stroketrvolume;trperipheraltrvasculartrresistance
ANSWER:t r C
Bloodtrpressuretristrequaltrtotrcardiactroutputtrmultipliedtrbytrperipheraltrvasculartrresistance.

, OBJ:t r Identifytrandtrexplaintrthetrcomponentstroftrbloodtrpressuretrandtrcardiactroutput.

5. Thetrrighttratriumtrreceivestrvenoustrbloodtrfromtrthetrhead,trneck,trandtrthoraxtrviatrthe
,trfromrtt hetrremaindertroftrthetrbodytrviatrthe
,trandtrfromtrthetrhearttrviatrthe .
a. coronarytrsinus;trsuperiortrvenatrcava;trinferiortrvenatrcava
b. superiortrvenatrcava;trcoronarytrsinus;trinferiortrvenatrcava
c. inferiortrvenatrcava;trsuperiortrvenatrcava;trcoronarytrsinus
d. superiortrvenatrcava;trinferiortrvenatrcava;trcoronarytrsinus
ANSWER:t r D
Thetrrighttratriumtrreceivestrbloodtrlowtrintroxygentrfromtrthetrsuperiortrvenatrcava,trwhichtrcarriest
rbloodtrfromtrthetrheadtrandtruppertrextremities;trthetrinferiortrvenatrcava,trwhichtrcarriestrbloodtrfr

omrtthetrlowertrbody;trandtrthetrcoronarytrsinus,trwhichtristrthetrlargesttrveintrthattrdrainstrthetrheart.

OBJ:t r Identifytrandtrdescribetrthetrchamberstroftrthetrhearttrandtrthetrvesselstrthattrentertrortrleavetreach.

6. Thetrhearttristrdividedtrinto chamberstrbuttrfunctionstrastra -sidedtrpump.
a. two;trfour
b. three;trtwo
c. four;trtwo
d. four;trthree
ANSWER:t r C
Thetrhearttrhastrfourtrchambers:trtwotratriatrandtrtwotrventricles.trThetrrighttrandtrlefttrsidestroftrthetrhe
artrtaretrseparatedtrbytrantrinternaltrwalltroftrconnectivetrtissuetrcalledtratrseptum.trThetrinteratrialtrsept
umtrseparatestrthetrrighttrandtrlefttratria.trThetrinterventriculartrseptumtrseparatestrthetrrighttrandtrleftt
rventricles.trThetrseptatrseparatetrthetrhearttrintotrtwotrfunctionaltrpumps.trThetrrighttratriumtrandtrrig

httrventricletrmaketruptronetrpump.trThetrlefttratriumtrandtrlefttrventricletrmaketruptrthetrother.

OBJ:t r Identifytrandtrdescribetrthetrchamberstroftrthetrhearttrandtrthetrvesselstrthattrentertrortrleavetreach.

7. Stimulationtroftralpha1trreceptorstrresultstrin .
a. increasedtrhearttrrate
b. peripheraltrvasoconstriction
c. constrictiontroftrbronchialtrsmoothtrmuscle
d. increasedtrforcetroftrmyocardialtrcontraction

ANSWER:t r B
Alpha1trreceptorstraretrfoundtrintrthetreyes,trbloodtrvessels,trbladder,trandtrmaletrreproductivetrorgan
s.rtStimulationtroftralpha1trreceptortrsitestrresultstrintrconstriction.

OBJ:t r Comparetrandtrcontrasttrthetreffectstroftrsympathetictrandtrparasympathetictrstimulationtroftrthetrheart.

8. Whichtrsidetroftrthetrhearttristratrlow-pressuretrsystemtrthattrpumpstrvenoustrbloodtrtotrthetrlungs?
a. Left
b. Right
ANSWER:t r B
Thetrjobtroftrthetrrighttrsidetroftrthetrhearttristrtotrpumptrunoxygenatedtrbloodtrtotrandtrthroughtrthetrlun
gstrtotrthetrlefttrsidetroftrthetrheart.trThistristrcalledtrthetrpulmonarytrcirculation.trThetrrighttrsidetroftrthetr
heartrtistratrlow-pressuretrsystem.