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ECGs MADE EASY
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6TH EDITION | AEHLERT
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TEST BANK h i
,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.AtrioventricularBlocks
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Chapter 8.PacemakerRhythms
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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:ECGsMade Easy,6thEdition
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MULTIPLE CHOICE hi
1. The apex of the heart is formed by the
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a. tip of the left ventricle hi hi hi hi
b. tip of the right atrium hi hi hi hi
c. right atrium and right ventricle hi hi hi hi
d. left atrium and left ventricle hi hi hi hi
ANS: A h i
The heart’s apex, or lower portion, is formed by the tip of the left ventricle. The apex lies just above t
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he 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 hi
b. aorta
c. pulmonary arteries hi
d. inferior vena cava hi hi
ANS: A h i
The left atrium receives freshly oxygenated blood from the lungs via the right and left pulmonary v
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eins.
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 hi
b. right atrium hi
c. left ventricle hi
d. right ventricle hi
ANS: D h i
The front (anterior) surface of the heart lies behind the sternum and costal cartilages. It is formed b
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y portions of the right atrium and the left and right ventricles. However, because the heart is tilted sl
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ightly toward the left in the chest, the right ventricle is the area of the heart that lies most directly beh
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ind the sternum.
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OBJ: Identify the surfaces of the heart.
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4. Blood pressure is determined by hi multiplied by hi hi hi hi .
a. stroke volume; heart rate hi hi hi
b. heart rate; cardiac output hi hi hi
c. cardiac output; peripheral vascular resistance hi hi hi hi
d. stroke volume; peripheral vascular resistance hi hi hi hi
ANS: C h i
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 hi hi hi hi hi hi hi hi
, and from the heart via the . hi hi hi hi hi hi
a. coronarysinus; superior vena cava; inferior vena cava hi hi hi hi hi hi hi
b. superior vena cava; coronary sinus; inferior vena cava hi hi hi hi hi hi hi
c. inferior vena cava; superior vena cava; coronary sinus hi hi hi hi hi hi hi
d. superior vena cava; inferior vena cava; coronary sinus hi hi hi hi hi hi hi
ANS: D h i
The right atrium receives blood low in oxygen from the superior vena cava, which carries blood f
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rom the head and upper extremities; the inferior vena cava, which carries blood from the lower bo
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dy; 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
hi hi hi hi chambers but functions as a hi hi hi hi -sided pump. hi
a. two; four hi
b. three; two hi
c. four; two hi
d. four; three hi
ANS: C h i
The heart has four chambers: two atria and two ventricles. The right and left sides of the heart are sep
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arated by an internal wall of connective tissue called a septum. The interatrial septum separates the
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right and left atria. The interventricular septum separates the right and left ventricles. The septa se
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parate the heart into two functional pumps. The right atrium and right ventricle make up one pump.
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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 hi hi hi hi hi .
a. increased heart rate hi hi
b. peripheral vasoconstriction hi
c. constriction of bronchial smooth muscle hi hi hi hi
d. increased force of myocardial contraction hi hi hi hi
ANS: B h i
Alpha1 receptors are found in the eyes, blood vessels, bladder, and male reproductive organs. Stimulati
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on 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 h i
The job of the right side of the heart is to pump unoxygenated blood to and through the lungs to the l
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eft 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. hi