ECGs Made Easy 6th Edition Test Bank by Barbara Aehlert – Complete Study Guide with Answers

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ECGs MADE EASY
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6TH EDITION | AEHLERT
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TEST BANK k

,ECGs Made Easy 6th 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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,Chapter 01: Anatomy and Physiology
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Aehlert: ECGs Made Easy, 6th Edition
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MULTIPLEkCHOICE

1. Thekapexkofkthekheartkiskformedkbykthe .
a. tipkofkthekleftkventricle
b. tipkofkthekrightkatrium
c. rightkatriumkandkrightkventricle
d. leftkatriumkandkleftkventricle
ANS:k A
Thekheart’skapex,korklowerkportion,kiskformedkbykthektipkofkthekleftkventricle.kThekapexklieskjustkab
ovekthekdiaphragm,kbetweenkthekfifthkandksixthkribs,kinkthekmidclavicularkline.

OBJ:k Identifyktheksurfaceskofkthekheart.

2. Thekleftkatriumkreceiveskbloodkfromkthe .
a. pulmonarykveins
b. aorta
c. pulmonarykarteries
d. inferiorkvenakcava
ANS:k A
Thekleftkatriumkreceiveskfreshlykoxygenatedkbloodkfromktheklungskviakthekrightkandkleftkpulmonar
ykveins.

OBJ:k Identifykandkdescribekthekchamberskofkthekheartkandkthekvesselskthatkenterkorkleavekeach.

3. Thekanteriorksurfacekofkthekheartkconsistskprimarilykofkthe .
a. leftkatrium
b. rightkatrium
c. leftkventricle
d. rightkventricle
ANS:k D
Thekfrontk(anterior)ksurfacekofkthekheartklieskbehindktheksternumkandkcostalkcartilages.kItkiskforme
dkbykportionskofkthekrightkatriumkandkthekleftkandkrightkventricles.kHowever,kbecausekthekheartkiskt
iltedkslightlyktowardkthekleftkinkthekchest,kthekrightkventriclekiskthekareakofkthekheartkthatklieskmostk
directlykbehindktheksternum.

OBJ:k Identifyktheksurfaceskofkthekheart.

4. Bloodkpressurekiskdeterminedkby multipliedkby .
a. strokekvolume;kheartkrate
b. heartkrate;kcardiackoutput
c. cardiackoutput;kperipheralkvascularkresistance
d. strokekvolume;kperipheralkvascularkresistance
ANS:k C
Bloodkpressurekiskequalktokcardiackoutputkmultipliedkbykperipheralkvascularkresistance.

, OBJ:k Identifykandkexplainkthekcomponentskofkbloodkpressurekandkcardiackoutput.

5. Thekrightkatriumkreceiveskvenouskbloodkfromkthekhead,kneck,kandkthoraxkviakthe
,kfromkthekremainderkofkthekbodykviakthe
,kandkfromkthekheartkviakthe .
a. coronaryksinus;ksuperiorkvenakcava;kinferiorkvenakcava
b. superiorkvenakcava;kcoronaryksinus;kinferiorkvenakcava
c. inferiorkvenakcava;ksuperiorkvenakcava;kcoronaryksinus
d. superiorkvenakcava;kinferiorkvenakcava;kcoronaryksinus
ANS:k D
Thekrightkatriumkreceiveskbloodklowkinkoxygenkfromktheksuperiorkvenakcava,kwhichkcarrieskblo
odkfromkthekheadkandkupperkextremities;kthekinferiorkvenakcava,kwhichkcarrieskbloodkfromktheklo
werkbody;kandkthekcoronaryksinus,kwhichkisktheklargestkveinkthatkdrainskthekheart.

OBJ:k Identifykandkdescribekthekchamberskofkthekheartkandkthekvesselskthatkenterkorkleavekeach.

6. Thekheartkiskdividedkinto chamberskbutkfunctionskaska -sidedkpump.
a. two;kfour
b. three;ktwo
c. four;ktwo
d. four;kthree
ANS:k C
Thekheartkhaskfourkchambers:ktwokatriakandktwokventricles.kThekrightkandkleftksideskofkthekheartkar
ekseparatedkbykankinternalkwallkofkconnectivektissuekcalledkakseptum.kThekinteratrialkseptumksepa
rateskthekrightkandkleftkatria.kThekinterventricularkseptumkseparateskthekrightkandkleftkventricles.k
Thekseptakseparatekthekheartkintoktwokfunctionalkpumps.kThekrightkatriumkandkrightkventriclekma
kekupkonekpump.kThekleftkatriumkandkleftkventriclekmakekupkthekother.

OBJ:k Identifykandkdescribekthekchamberskofkthekheartkandkthekvesselskthatkenterkorkleavekeach.

7. Stimulationkofkalpha1kreceptorskresultskin .
a. increasedkheartkrate
b. peripheralkvasoconstriction
c. constrictionkofkbronchialksmoothkmuscle
d. increasedkforcekofkmyocardialkcontraction
ANS:k B
Alpha1kreceptorskarekfoundkinkthekeyes,kbloodkvessels,kbladder,kandkmalekreproductivekorgans.kStimu
lationkofkalpha1kreceptorksiteskresultskinkconstriction.

OBJ:k Comparekandkcontrastkthekeffectskofksympathetickandkparasympathetickstimulationkofkthekheart.

8. Whichksidekofkthekheartkiskaklow-pressureksystemkthatkpumpskvenouskbloodktoktheklungs?
a. Left
b. Right
ANS:k B
Thekjobkofkthekrightksidekofkthekheartkisktokpumpkunoxygenatedkbloodktokandkthroughktheklungsktok
thekleftksidekofkthekheart.kThiskiskcalledkthekpulmonarykcirculation.kThekrightksidekofkthekheartkiskakl
ow-pressureksystem.