Test Bank for ECGs Made Easy 7th Edition by Barbara J. Aehlert| 9780323832878| All Chapters 1-10| LATEST

,ECGs Made Easy 8th 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 A
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ehlert: ECGs Made Easy, 8th Edition
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MULTIPLE CHOICE #




1. The ape 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# # # #


c. right atrium and right ventricle # # # #


d. left atrium and left ventricle # # # #




ANS: A #


The heart’s ape , or lower portion, is formed by the tip of the left ventricle. The ape lies just above
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the diaphragm, between the fifth and si th 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 #


b. aorta
c. pulmonary arteries #


d. inferior vena cava # #




ANS: A #


The left atrium receives freshly o ygenated blood from the lungs via the right and left pulmonary
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veins.

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 #


b. right atrium #


c. left ventricle #


d. right ventricle #




ANS: D #


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 tilte
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d slightly toward the left in the chest, the right ventricle is the area of the heart that lies most direct
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ly 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 # # #


b. heart rate; cardiac output # # #


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


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




ANS: C #


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


, and from the heart via the . # # # # # #


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 #


The right atrium receives blood low in o ygen from the superior vena cava, which carries blood
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from the head and upper e tremities; the inferior vena cava, which carries blood from the lower b
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ody; 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
# # # # chambers but functions as a # # # # -sided pump. #


a. two; four #


b. three; two #


c. four; two #


d. four; three #




ANS: C #


The heart has four chambers: two atria and two ventricles. The right and left sides of the heart are s
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eparated 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 sep
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ta separate the heart into two functional pumps. The right atrium and right ventricle make up one
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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 # # # # # .
a. increased heart rate # #


b. peripheral vasoconstriction #


c. constriction of bronchial smooth muscle # # # #


d. increased force of myocardial contraction # # # #




ANS: B #


Alpha1 receptors are found in the eyes, blood vessels, bladder, and male reproductive organs. Stimula
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tion 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 #


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