Test Bank for Ecgs made easy 7th edition by barbara aehlert all chapters 1-10

Test bank for ECGs Made Easy
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7th Edition by Barbara J Aehlert
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Chapters 1 – 10 Latest Version 2025
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,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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,Chapter 01: Anatomy and Physiology
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Aehlert: ECGs Made Easy, 7th Edition
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MULTIPLEnCHOICE

1. n Thenapexnofnthenheartnisnformednbynthe .
a. tipnofnthenleftnventricle
b. tipnofnthenrightnatrium
c. rightnatriumnandnrightnventricle
d. leftnatriumnandnleftnventricle
ANSWER:n A
Thenheart’snapex,nornlowernportion,nisnformednbynthentipnofnthenleftnventricle.nThenapexnliesnjustna
boventhendiaphragm,nbetweennthenfifthnandnsixthnribs,ninnthenmidclavicularnline.

OBJ:n Identifynthensurfacesnofnthenheart.

2. Thenleftnatriumnreceivesnbloodnfromnthe .
a. pulmonarynveins
b. aorta
c. pulmonarynarteries
d. inferiornvenancava
ANSWER:n A
Thenleftnatriumnreceivesnfreshlynoxygenatednbloodnfromnthenlungsnvianthenrightnandnleftnp
ulmonarynveins.

OBJ:n Identifynandndescribenthenchambersnofnthenheartnandnthenvesselsnthatnenternornleaveneach.

3. Thenanteriornsurfacenofnthenheartnconsistsnprimarilynofnthe .
a. leftnatrium
b. rightnatrium
c. leftnventricle
d. rightnventricle
ANSWER:n D
Thenfrontn(anterior)nsurfacenofnthenheartnliesnbehindnthensternumnandncostalncartilages.nItnisnforme
dnbynportionsnofnthenrightnatriumnandnthenleftnandnrightnventricles.nHowever,nbecausenthenheartnisnt
iltednslightlyntowardnthenleftninnthenchest,nthenrightnventriclenisnthenareanofnthenheartnthatnliesnmostn
directlynbehindnthensternum.

OBJ:n Identifynthensurfacesnofnthenheart.

4. Bloodnpressurenisndeterminednby multipliednby .
a. strokenvolume;nheartnrate
b. heartnrate;ncardiacnoutput
c. cardiacnoutput;nperipheralnvascularnresistance
d. strokenvolume;nperipheralnvascularnresistance
ANSWER:n C
Bloodnpressurenisnequalntoncardiacnoutputnmultipliednbynperipheralnvascularnresistance.

, OBJ:n Identifynandnexplainnthencomponentsnofnbloodnpressurenandncardiacnoutput.

5. Thenrightnatriumnreceivesnvenousnbloodnfromnthenhead,nneck,nandnthoraxnvianthe
,nfromnthenremaindernofnthenbodynvianthe
,nandnfromnthenheartnvianthe .
a. coronarynsinus;nsuperiornvenancava;ninferiornvenancava
b. superiornvenancava;ncoronarynsinus;ninferiornvenancava
c. inferiornvenancava;nsuperiornvenancava;ncoronarynsinus
d. superiornvenancava;ninferiornvenancava;ncoronarynsinus
ANSWER:n D
Thenrightnatriumnreceivesnbloodnlowninnoxygennfromnthensuperiornvenancava,nwhichncarriesnblo
odnfromnthenheadnandnuppernextremities;ntheninferiornvenancava,nwhichncarriesnbloodnfromnthenl
owernbody;nandnthencoronarynsinus,nwhichnisnthenlargestnveinnthatndrainsnthenheart.

OBJ:n Identifynandndescribenthenchambersnofnthenheartnandnthenvesselsnthatnenternornleaveneach.

6. Thenheartnisndividedninto chambersnbutnfunctionsnasna -sidednpump.
a. two;nfour
b. three;ntwo
c. four;ntwo
d. four;nthree
ANSWER:n C
Thenheartnhasnfournchambers:ntwonatrianandntwonventricles.nThenrightnandnleftnsidesnofnthenheartnar
enseparatednbynanninternalnwallnofnconnectiventissuencallednanseptum.nTheninteratrialnseptumnsep
aratesnthenrightnandnleftnatria.nTheninterventricularnseptumnseparatesnthenrightnandnleftnventricles.
nThenseptanseparatenthenheartnintontwonfunctionalnpumps.nThenrightnatriumnandnrightnventriclenm

akenupnonenpump.nThenleftnatriumnandnleftnventriclenmakenupnthenother.

OBJ:n Identifynandndescribenthenchambersnofnthenheartnandnthenvesselsnthatnenternornleaveneach.

7. Stimulationnofnalpha1nreceptorsnresultsnin .
a. increasednheartnrate
b. peripheralnvasoconstriction
c. constrictionnofnbronchialnsmoothnmuscle
d. increasednforcenofnmyocardialncontraction
ANSWER:n B
Alpha1nreceptorsnarenfoundninntheneyes,nbloodnvessels,nbladder,nandnmalenreproductivenorgans.nS
timulationnofnalpha1nreceptornsitesnresultsninnconstriction.

OBJ:n Comparenandncontrastntheneffectsnofnsympatheticnandnparasympatheticnstimulationnofnthenheart.

8. Whichnsidenofnthenheartnisnanlow-pressurensystemnthatnpumpsnvenousnbloodntonthenlungs?
a. Left
b. Right
ANSWER:n B
Thenjobnofnthenrightnsidenofnthenheartnisntonpumpnunoxygenatednbloodntonandnthroughnthenlungsnton
thenleftnsidenofnthenheart.nThisnisncallednthenpulmonaryncirculation.nThenrightnsidenofnthenheartnisnanl
ow-pressurensystem.