TEST BANK For ECGs Made Easy, 7th Edition by Barbara J Aehlert, Verified Chapters 1 - 10, Complete Newest Version

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




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, 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
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Aehlert: ECGs Made Easy, 7th
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Edition
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MULTIPLE CHOICE cv




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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ANSWER: A cv


The heart’s apex, or lower portion, is formed by the tip of the left ventricle. The apex
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lies justabove 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 cv


b. aorta
c. pulmonary arteries cv


d. inferior vena cava cv cv




ANSWER: A cv


The left atrium receives freshly oxygenated blood from the lungs via the right
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and leftpulmonary 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 cv


b. right atrium cv


c. left ventricle cv


d. right ventricle cv




ANSWER: D cv


The front (anterior) surface of the heart lies behind the sternum and costal cartilages. It
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is formed by portions of the right atrium and the left and right ventricles. However,
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because the heart is tilted slightly toward the left in the chest, the right ventricle is the
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area of the heart thatlies 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 cv cv cv


b. heart rate; cardiac output
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c. cardiac output; peripheral vascular resistance
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d. stroke volume; peripheral vascular resistance
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ANSWER: C cv


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
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heart via the
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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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ANSWER: D cv


The right atrium receives blood low in oxygen from the superior vena cava, which
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carries blood from the head and upper extremities; the inferior vena cava, which
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carries blood fromthe lower body; and the coronary sinus, which is the largest vein
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that drains the heart.
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OBJ: c v 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 cv


b. three; two cv


c. four; two cv


d. four; three cv




ANSWER: C cv


The heart has four chambers: two atria and two ventricles. The right and left sides of the
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heartare separated by an internal wall of connective tissue called a septum. The
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interatrial septum separates the right and left atria. The interventricular septum separates
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the right and left ventricles. The septa separate the heart into two functional pumps.
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The right atrium and right ventricle make up one pump. The left atrium and left
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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 . cv cv cv cv cv


a. increased heart rate cv cv


b. peripheral vasoconstriction cv


c. constriction of bronchial smooth muscle cv cv cv cv


d. increased force of myocardial contraction cv cv cv cv




ANSWER: B cv


Alpha1 receptors are found in the eyes, blood vessels, bladder, and male reproductive
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organs.Stimulation 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
ANSWER: B cv


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