Ecgs made easy 6th edition by barbara aehlert test bank (1).pdf

Testbankfor ECGsMadeEasy
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7thEdition byBarbara JAehlert
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Chapters1-10 c c c

,ECGs Made Easy 7th Edition by Barbara Aehlert TestBank
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Table ofContents:
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Chapter1.Anatomy & Physiology
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Chapter2.Basic Electrophysiology
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Chapter3.Sinus Mechanisms
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Chapter4.AtrialRhythms
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Chapter5.Junctional Rhythms
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Chapter6.VentricularRhythms
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Chapter7.Atrioventricular Blocks
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Chapter8.PacemakerRhythms
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Chapter9.Introduction to the 12-Lead ECG
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Chapter10.Post-Test
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,Chapter 01: Anatomy and Physiology
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Aehlert:ECGsMadeEasy,7thEdition
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MULTIPLECHOICE c




1. The apex of the heart is formed bythe
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a. tip of the leftventricle
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b. tip of the right atrium
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c. right atrium and right ventricle c c c c




d. leftatrium and left ventricle
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ANSWER: A c




Theheart’s apex, or lower portion, is formed bythetip ofthe left ventricle.The apex lies justabove the
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diaphragm, between the fifth and sixth ribs, in themidclavicular line.
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OBJ: Identifythe surfaces ofthe heart.
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2. The left atrium receives blood from the
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a. pulmonaryveins c




b. aorta
c. pulmonaryarteries c




d. inferiorvena cava c c




ANSWER: A c




The left atrium receives freshlyoxygenated blood from the lungs via the right and left
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pulmonaryveins.
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OBJ: Identifyanddescribe the chambers of the heart andthe vessels thatenteror leave each.
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3. The anterior surface of the heart consists primarilyofthe
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a. leftatrium c




b. right atrium c




c. leftventricle c




d. right ventricle c




ANSWER: D c




The front (anterior) surface of the heart lies behind the sternum and costal cartilages. It is formed by
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portions of the right atrium and the left and right ventricles. However, because the heart is tilted
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slightlytoward the left in the chest, the right ventricle is the area of the heart thatlies most directly
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behind the sternum.
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OBJ: Identifythe surfaces ofthe heart.
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4. Blood pressureis determined by
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a. strokevolume; heart rate c c c




b. heartrate; cardiac output c c c




c. cardiacoutput;peripheralvascularresistance c c c c




d. strokevolume;peripheralvascularresistance c c c c




ANSWER: C c




Bloodpressureisequal to cardiac output multiplied byperipheralvascular resistance.
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, OBJ: Identifyandexplainthe components of blood pressure and cardiacoutput.
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5. The right atrium receives venousblood fromthe head, neck, and thorax via the ,fromthe
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cremainder of the bodyvia the , and from the heart via the c c c c c c c c c c c .
a. coronarysinus; superior vena cava; inferior vena cava c c c c c c c




b. superior venacava; coronarysinus; inferior vena cava c c c c c c c




c. inferiorvena cava; superiorvena cava; coronarysinus c c c c c c c




d. superior venacava; inferior vena cava; coronarysinus c c c c c c c




ANSWER: D c




The right atrium receives blood low in oxygen from the superior vena cava, which carries blood
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from the head and upper extremities; the inferior vena cava, which carries blood fromthe lower
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body; and the coronarysinus, which is thelargest vein thatdrains the heart.
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OBJ: Identifyanddescribe the chambers of the heart andthe vessels thatenteror leave each.
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6. The heart is divided into
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a. two; four c




b. three;two c




c. four; two c




d. four; three c




ANSWER: C c




The heart has four chambers: two atria and two ventricles.The right and left sidesof theheartare
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separated by an internal wall of connective tissue called a septum. The interatrial septum separates
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the right and left atria. The interventricular septum separates the right and left ventricles. The septa
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separate the heart into two functional pumps. The right atrium and right ventricle make up one pump.
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The left atrium and left ventricle make up the other.
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OBJ: Identifyanddescribe the chambers of the heart andthe vessels thatenteror leave each.
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7. Stimulation ofalpha1 receptorsresults in c c c c c .
a. increasedheart rate c c




b. peripheralvasoconstriction c




c. constriction ofbronchial smooth muscle c c c c




d. increasedforce ofmyocardial contraction c c c c




ANSWER: B c




Alpha1receptors arefound intheeyes, blood vessels, bladder,and malereproductiveorgans.
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Stimulation of alpha1 receptor sites results in constriction.
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OBJ: Compareandcontrast theeffectsofsympatheticand parasympatheticstimulation of theheart.
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8. Whichside of the heart is alow-pressuresystem that pumps venous blood to thelungs?
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a. Left
b. Right
ANSWER: B c




The job of the right side of the heart is to pump unoxygenated blood to and through the lungs tothe left
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sideofthe heart.This is called thepulmonary circulation.The right sideofthe heartis a low-pressure
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system.
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