Ecgs made easy 6th edition by barbara aehlert test bank

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

,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,7thEdition
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MULTIPLECHOICE f




1. The apex of the heart is formed bythe
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a. tip of the left ventricle ff ff ff ff




b. tip of the right atrium ff ff ff ff




c. right atrium and right ventricle ff ff ff ff




d. left atrium and left ventricle ff ff ff ff




ANSWER: A f f




The heart’s apex, or lower portion, is formed bythe tip of the left ventricle. The apex lies
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justabove 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. pulmonary veins ff




b. aorta
c. pulmonary arteries ff




d. inferior vena cava ff ff




ANSWER: A f f




The left atrium receives freshly oxygenated blood from the lungs via the right and
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leftpulmonary veins.
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OBJ: Identifyand 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 ff




b. right atrium ff




c. left ventricle ff




d. right ventricle ff




ANSWER: D f f




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
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tilted slightly toward the left in the chest, the right ventricle is the area of the heart thatlies most
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directly behind the sternum.
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OBJ: Identifythe surfaces of the heart.
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4. Blood pressure is determined by ffmultiplied by ff ff ff ff .
a. stroke volume; heart rate ff ff ff




b. heart rate; cardiac output ff ff ff




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




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




ANSWER: C f f




Blood pressure is equal to cardiac output multiplied byperipheral vascular resistance.
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, OBJ: Identifyand 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 f f ff ff ff ff ff ff , and
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from the heart via the
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a. coronarysinus; superior vena cava; inferior vena cava f ff ff ff ff ff ff




b. superior vena cava; coronarysinus; inferior vena cava ff ff ff f ff ff ff




c. inferior vena cava; superior vena cava; coronarysinus ff ff ff ff ff ff ff




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




ANSWER: D f f




The right atrium receives blood low in oxygen from the superior vena cava, which carries
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blood 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: f f Identify and describe the chambers of the heart and the vessels that enter or leave each. ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff




6. The heart is divided into
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a. two; four ff




b. three; two ff




c. four; two ff




d. four; three ff




ANSWER: C f f




The heart has four chambers: two atria and two ventricles. The right and left sides of the heartare
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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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ventricle make up one pump. The left atrium and left ventricle make up the other.
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OBJ: Identifyand 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 ff ff ff ff ff .
a. increased heart rate ff ff




b. peripheral vasoconstriction ff




c. constriction of bronchial smooth muscle ff ff ff ff




d. increased force of myocardial contraction ff ff ff ff




ANSWER: B f f




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 f f




The job of the right side of the heart is to pump unoxygenated blood to and through the lungs to
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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.
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