,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 A
s s s s s
ehlert: ECGs Made Easy, 6th Edition
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MULTIPLEsCHOICE
1. Thesapexsofsthesheartsissformedsbysthe .
a. tipsofsthesleftsventricle
b. tipsofsthesrightsatrium
c. rightsatriumsandsrightsventricle
d. leftsatriumsandsleftsventricle
ANS:s A
Thesheart’ssapex,sorslowersportion,sissformedsbysthestipsofsthesleftsventricle.sThesapexsliessjustsaboves
thesdiaphragm,sbetweensthesfifthsandssixthsribs,sinsthesmidclavicularsline.
OBJ:s Identifysthessurfacessofsthesheart.
2. Thesleftsatriumsreceivessbloodsfromsthe .
a. pulmonarysveins
b. aorta
c. pulmonarysarteries
d. inferiorsvenascava
ANS:s A
Thesleftsatriumsreceivessfreshlysoxygenatedsbloodsfromstheslungssviasthesrightsandsleftspulmonarysv
eins.
3. Thesanteriorssurfacesofsthesheartsconsistssprimarilysofsthe .
a. leftsatrium
b. rightsatrium
c. leftsventricle
d. rightsventricle
ANS:s D
Thesfronts(anterior)ssurfacesofsthesheartsliessbehindsthessternumsandscostalscartilages.sItsissformedsb
ysportionssofsthesrightsatriumsandsthesleftsandsrightsventricles.sHowever,sbecausesthesheartsisstiltedss
lightlystowardsthesleftsinstheschest,sthesrightsventriclesissthesareasofsthesheartsthatsliessmostsdirectlysb
ehindsthessternum.
OBJ:s Identifysthessurfacessofsthesheart.
4. Bloodspressuresissdeterminedsby multipliedsby .
a. strokesvolume;sheartsrate
b. heartsrate;scardiacsoutput
c. cardiacsoutput;speripheralsvascularsresistance
d. strokesvolume;speripheralsvascularsresistance
ANS:s C
Bloodspressuresissequalstoscardiacsoutputsmultipliedsbysperipheralsvascularsresistance.
5. Thesrightsatriumsreceivessvenoussbloodsfromstheshead,sneck,sandsthoraxsviasthe
,sfromsthesremaindersofsthesbodysviasthe
,sandsfromsthesheartsviasthe .
a. coronaryssinus;ssuperiorsvenascava;sinferiorsvenascava
b. superiorsvenascava;scoronaryssinus;sinferiorsvenascava
c. inferiorsvenascava;ssuperiorsvenascava;scoronaryssinus
d. superiorsvenascava;sinferiorsvenascava;scoronaryssinus
ANS:s D
Thesrightsatriumsreceivessbloodslowsinsoxygensfromsthessuperiorsvenascava,swhichscarriessbloodsf
romsthesheadsandsuppersextremities;sthesinferiorsvenascava,swhichscarriessbloodsfromstheslowersbo
dy;sandsthescoronaryssinus,swhichsisstheslargestsveinsthatsdrainssthesheart.
6. Thesheartsissdividedsinto chamberssbutsfunctionssassa -sidedspump.
a. two;sfour
b. three;stwo
c. four;stwo
d. four;sthree
ANS:s C
Thesheartshassfourschambers:stwosatriasandstwosventricles.sThesrightsandsleftssidessofsthesheartsaresse
paratedsbysansinternalswallsofsconnectivestissuescalledsasseptum.sThesinteratrialsseptumsseparatessth
esrightsandsleftsatria.sThesinterventricularsseptumsseparatessthesrightsandsleftsventricles.sThesseptass
eparatesthesheartsintostwosfunctionalspumps.sThesrightsatriumsandsrightsventriclesmakesupsonespum
p.sThesleftsatriumsandsleftsventriclesmakesupsthesother.
7. Stimulationsofsalpha1sreceptorssresultssin .
a. increasedsheartsrate
b. peripheralsvasoconstriction
c. constrictionsofsbronchialssmoothsmuscle
d. increasedsforcesofsmyocardialscontraction
ANS:s B
Alpha1sreceptorssaresfoundsinstheseyes,sbloodsvessels,sbladder,sandsmalesreproductivesorgans.sStim
ulationsofsalpha1sreceptorssitessresultssinsconstriction.
8. Whichssidesofsthesheartsissaslow-pressuressystemsthatspumpssvenoussbloodstostheslungs?
a. Left
b. Right
ANS:s B
Thesjobsofsthesrightssidesofsthesheartsisstospumpsunoxygenatedsbloodstosandsthroughstheslungsstosth
esleftssidesofsthesheart.sThississcalledsthespulmonaryscirculation.sThesrightssidesofsthesheartsissaslow-
pressuressystem.
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