Ecgs made easy 6th edition by barbara aehlert test bank

TestbankforECGsMadeEasy
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7thEdition byBarbara JAehlert
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Chapters1 -10 n n n

,ECGsMade Easy 7thEdition by Barbara Aehlert Test Bank
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Table of Contents:
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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 tothe 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 n




1. The apex of the heart is formed bythe
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a. tip of the leftventricle n n n n




b. tip of the right atrium n n n n




c. right atrium and right ventricle n n n n




d. leftatrium and left ventricle n n n n




ANSWER: A n




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




b. aorta
c. pulmonaryarteries n




d. inferiorvena cava n n




ANSWER: A n




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 theheart consists primarilyofthe
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a. leftatrium n




b. right atrium n




c. leftventricle n




d. right ventricle n




ANSWER: D n




The front (anterior) surface of the heart lies behind the sternum and costal cartilages. It is formed
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by 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 of the heart.
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4. Blood pressureis determined by
n multiplied by n n n n .
a. strokevolume; heart rate n n n




b. heartrate;cardiac output n n n




c. cardiacoutput;peripheralvascularresistance n n n n




d. strokevolume;peripheralvascularresistance n n n n




ANSWER: C n




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




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




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




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




ANSWER: D n




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 isthe largest 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
n n n n chambers but functions as a n n n n -sided pump. n




a. two; four n




b. three;two n




c. four; two n




d. four; three n




ANSWER: C n




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
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separates the right and left atria. The interventricular septum separates the right and left
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ventricles. The septa separate the heart into two functional pumps. The right atrium and right
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ventriclemake up one pump.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 n n n n n .
a. increasedheartrate n n




b. peripheralvasoconstriction n




c. constriction ofbronchial smooth muscle n n n n




d. increasedforce ofmyocardial contraction n n n n




ANSWER: B n




Alpha1receptorsarefound 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. Whichsideof the heart is alow-pressuresystem that pumps venous blood to thelungs?
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a. Left
b. Right
ANSWER: B n




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