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7th Edition by Barbara J Aehlert
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Chapters 1 - 10
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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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MULTIPLE tCHOICE
1. The tapex tof tthe theart tis tformed tby tthe .
a. tip tof tthe tleft tventricle
b. tip tof tthe tright tatrium
c. right tatrium tand tright tventricle
d. left tatrium tand tleft tventricle
ANSWER: t A
The theart’s tapex, tor tlower tportion, tis tformed tby tthe ttip tof tthe tleft tventricle. tThe tapex tlies
tjusttabove tthe tdiaphragm, tbetween tthe tfifth tand tsixth tribs, tin tthe tmidclavicular tline.
OBJ: t Identify tthe tsurfaces tof tthe theart.
2. The tleft tatrium treceives tblood tfrom tthe .
a. pulmonary tveins
b. aorta
c. pulmonary tarteries
d. inferior tvena tcava
ANSWER: t A
The tleft tatrium treceives tfreshly toxygenated tblood tfrom tthe tlungs tvia tthe tright tand
tlefttpulmonary tveins.
OBJ: t Identify tand tdescribe tthe tchambers tof tthe theart tand tthe tvessels tthat tenter tor tleave teach.
3. The tanterior tsurface tof tthe theart tconsists tprimarily tof tthe .
a. left tatrium
b. right tatrium
c. left tventricle
d. right tventricle
ANSWER: t D
The tfront t(anterior) tsurface tof tthe theart tlies tbehind tthe tsternum tand tcostal tcartilages. tIt
tis tformed tby tportions tof tthe tright tatrium tand tthe tleft tand tright tventricles. tHowever,
tbecause tthe theart tis ttilted tslightly ttoward tthe tleft tin tthe tchest, tthe tright tventricle tis tthe
tarea tof tthe theart tthattlies tmost tdirectly tbehind tthe tsternum.
OBJ: t Identify tthe tsurfaces tof tthe theart.
4. Blood tpressure tis tdetermined tby multiplied tby .
a. stroke tvolume; theart trate
b. heart trate; tcardiac toutput
c. cardiac toutput; tperipheral tvascular tresistance
d. stroke tvolume; tperipheral tvascular tresistance
ANSWER: t C
Blood tpressure tis tequal tto tcardiac toutput tmultiplied tby tperipheral tvascular tresistance.
, OBJ: t Identify tand texplain tthe tcomponents tof tblood tpressure tand tcardiac toutput.
5. The tright tatrium treceives tvenous tblood tfrom tthe thead, tneck, tand tthorax tvia tthe , tfrom
the tremainder tof tthe tbody tvia tthe
t , tand tfrom tthe theart tvia tthe .
a. coronary tsinus; tsuperior tvena tcava; tinferior tvena tcava
b. superior tvena tcava; tcoronary tsinus; tinferior tvena tcava
c. inferior tvena tcava; tsuperior tvena tcava; tcoronary tsinus
d. superior tvena tcava; tinferior tvena tcava; tcoronary tsinus
ANSWER: t D
The tright tatrium treceives tblood tlow tin toxygen tfrom tthe tsuperior tvena tcava, twhich
tcarries tblood tfrom tthe thead tand tupper textremities; tthe tinferior tvena tcava, twhich
tcarries tblood tfromtthe tlower tbody; tand tthe tcoronary tsinus, twhich tis tthe tlargest tvein
tthat tdrains tthe theart.
OBJ: t Identify tand tdescribe tthe tchambers tof tthe theart tand tthe tvessels tthat tenter tor tleave teach.
6. The theart tis tdivided tinto chambers tbut tfunctions tas ta -sided tpump.
a. two; tfour
b. three; ttwo
c. four; ttwo
d. four; tthree
ANSWER: t C
The theart thas tfour tchambers: ttwo tatria tand ttwo tventricles. tThe tright tand tleft tsides tof tthe
thearttare tseparated tby tan tinternal twall tof tconnective ttissue tcalled ta tseptum. tThe
tinteratrial tseptum tseparates tthe tright tand tleft tatria. tThe tinterventricular tseptum
tseparates tthe tright tand tleft tventricles. tThe tsepta tseparate tthe theart tinto ttwo tfunctional
tpumps. tThe tright tatrium tand tright tventricle tmake tup tone tpump. tThe tleft tatrium tand tleft
tventricle tmake tup tthe tother.
OBJ: t Identify tand tdescribe tthe tchambers tof tthe theart tand tthe tvessels tthat tenter tor tleave teach.
7. Stimulation tof talpha1 treceptors tresults tin .
a. increased theart trate
b. peripheral tvasoconstriction
c. constriction tof tbronchial tsmooth tmuscle
d. increased tforce tof tmyocardial tcontraction
ANSWER: t B
Alpha1 treceptors tare tfound tin tthe teyes, tblood tvessels, tbladder, tand tmale treproductive
torgans.tStimulation tof talpha1 treceptor tsites tresults tin tconstriction.
OBJ: t Compare tand tcontrast tthe teffects tof tsympathetic tand tparasympathetic tstimulation tof tthe
theart.
8. Which tside tof tthe theart tis ta tlow-pressure tsystem tthat tpumps tvenous tblood tto tthe tlungs?
a. Left
b. Right
ANSWER: t B
The tjob tof tthe tright tside tof tthe theart tis tto tpump tunoxygenated tblood tto tand tthrough tthe
tlungs tto tthe tleft tside tof tthe theart. tThis tis tcalled tthe tpulmonary tcirculation. tThe tright tside