Test Bank for ECGs Made Easy 6th Edition by Barbara J Aehlert 9780323401302 Chapters 1-10 Complete Guide.

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ECGs MADE EASY
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6TH EDITION | AEHLERT
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TEST BANK h j

,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
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Aehlert: ECGs Made Easy, 6th Edition
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MULTIPLE CHOICE hj




1. The apex of the heart is formed by the
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a. tip of the left ventricle
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b. tip of the right atrium
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c. right atrium and right ventricle
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d. left atrium and left ventricle
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ANS: A hj


The heart’s apex, or lower portion, is formed by the tip of the left ventricle. The apex lies just a
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bove 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 hj


b. aorta
c. pulmonary arteries hj


d. inferior vena cava hj hj




ANS: A hj


The left atrium receives freshly oxygenated blood from the lungs via the right and left pulmon
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ary veins.
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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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3. The anterior surface of the heart consists primarily of the
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a. left atrium hj


b. right atrium hj


c. left ventricle hj


d. right ventricle hj




ANS: D hj


The front (anterior) surface of the heart lies behind the sternum and costal cartilages. It is for
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med by portions of the right atrium and the left and right ventricles. However, because the he
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art is tilted slightly toward the left in the chest, the right ventricle is the area of the heart that li
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es most 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
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a. stroke volume; heart rate hj hj hj


b. heart rate; cardiac output hj hj hj


c. cardiac output; peripheral vascular resistance
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d. stroke volume; peripheral vascular resistance
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ANS: C hj


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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, from the remainder of the body via the hj hj hj hj hj hj hj hj


, and from the heart via the . hj hj hj hj hj hj


a. coronary sinus; superior vena cava; inferior vena cava
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b. superior vena cava; coronary sinus; inferior vena cava
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c. inferior vena cava; superior vena cava; coronary sinus
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d. superior vena cava; inferior vena cava; coronary sinus
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ANS: D hj


The right atrium receives blood low in oxygen from the superior vena cava, which carries bl
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ood from the head and upper extremities; the inferior vena cava, which carries blood from the
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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 hj


b. three; two hj


c. four; two hj


d. four; three hj




ANS: C hj


The heart has four chambers: two atria and two ventricles. T he right and left sides of the heart a
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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 ventricl
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es. The septa separate the heart into two functional pumps. The right atrium and right ventricl
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e 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 hj hj hj hj hj .
a. increased heart rate hj hj


b. peripheral vasoconstriction hj


c. constriction of bronchial smooth muscle hj hj hj hj


d. increased force of myocardial contraction hj hj hj hj




ANS: B hj


Alpha1 receptors are found in the eyes, blood vessels, bladder, and male reproductive organs. Stim
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ulation of alpha1 receptor sites results in constriction.
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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
ANS: B hj


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