TEST BANK ecgs made easy 7th edition by barbara aehlert |All Chapter 1 - 10

Test bank for ECGs Made Easy
7th Edition by Barbara J Aehlert
Chapters 1 - 10

,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 Ae
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hlert: ECGs Made Easy, 7th Edition
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MULTIPLE CHOICE yh




1. The apex of the heart is formed by the
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a. tip of the left ventricle yh yh yh yh




b. tip of the right atrium yh yh yh yh




c. right atrium and right ventricle yh yh yh yh




d. left atrium and left ventricle yh yh yh yh




ANSWER: A y h




The heart’s apex, or lower portion, is formed by the tip of the left ventricle. The apex lies justab
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ove the diaphragm, between the fifth and sixth ribs, in the midclavicular line.
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OBJ: Identify the surfaces of the heart.
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2. The left atrium receives blood from the
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a. pulmonary veins yh




b. aorta
c. pulmonary arteries yh




d. inferior vena cava yh yh




ANSWER: A y h




The left atrium receives freshly oxygenated blood from the lungs via the right and leftp
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ulmonary veins. yh




OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
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3. The anterior surface of the heart consists primarily of the
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a. left atrium yh




b. right atrium yh




c. left ventricle yh




d. right ventricle yh




ANSWER: D y h




The front (anterior) surface of the heart lies behind the sternum and costal cartilages. It is form
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ed by portions of the right atrium and the left and right ventricles. However, because the heart
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is tilted slightly toward the left in the chest, the right ventricle is the area of the heart thatlies m
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ost directly behind the sternum.
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OBJ: Identify the surfaces of the heart.
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4. Blood pressure is determined by yhmultiplied by yh yh yh yh .
a. stroke volume; heart rate yh yh yh




b. heart rate; cardiac output yh yh yh




c. cardiac output; peripheral vascular resistance yh yh yh yh




d. stroke volume; peripheral vascular resistance yh yh yh yh




ANSWER: C y h




Blood pressure is equal to cardiac output multiplied by peripheral vascular resistance.
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, OBJ: Identify and explain the components of blood pressure and cardiac output.
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5. The right atrium receives venous blood from the head, neck, and thorax via the
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, fromthe remainder of the body via the yh yh yh yh yh yh yh yh




, and from the heart via the . yh yh yh yh yh yh




a. coronary sinus; superior vena cava; inferior vena cava yh yh yh yh yh yh yh




b. superior vena cava; coronary sinus; inferior vena cava yh yh yh yh yh yh yh




c. inferior vena cava; superior vena cava; coronary sinus yh yh yh yh yh yh yh




d. superior vena cava; inferior vena cava; coronary sinus yh yh yh yh yh yh yh




ANSWER: D y h




The right atrium receives blood low in oxygen from the superior vena cava, which carries blo
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od from the head and upper extremities; the inferior vena cava, which carries blood fromthe
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lower body; and the coronary sinus, which is the largest vein that drains the heart.
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OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
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6. The heart is divided into
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a. two; four yh




b. three; two yh




c. four; two yh




d. four; three yh




ANSWER: C y h




The heart has four chambers: two atria and two ventricles. The right and left sides of the hearta
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re separated by an internal wall of connective tissue called a septum. The interatrial septum se
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parates the right and left atria. The interventricular septum separates the right and left ventric
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les. The septa separate the heart into two functional pumps. The right atrium and right ventric
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le make up one pump. The left atrium and left ventricle make up the other.
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OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
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7. Stimulation of alpha1 receptors results in yh yh yh yh yh .
a. increased heart rate yh yh




b. peripheral vasoconstriction yh




c. constriction of bronchial smooth muscle yh yh yh yh




d. increased force of myocardial contraction yh yh yh yh




ANSWER: B y h




Alpha1 receptors are found in the eyes, blood vessels, bladder, and male reproductive organs.
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Stimulation of alpha1 receptor sites results in constriction. yh yh yh yh yh yh yh




OBJ: Compare and contrast the effects of sympathetic and parasympathetic stimulation of the heart.
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8. Which side of the heart is a low-pressure system that pumps venous blood to the lungs?
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a. Left
b. Right
ANSWER: B y h




The job of the right side of the heart is to pump unoxygenated blood to and through the lungs t
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o the left side of the heart. This is called the pulmonary circulation. The right side of the heartis a
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low-pressure system. yh