Test Bank for ECGs Made Easy, 7th Edition by Barbara Aehlert (Chapters 1-10)

Test bank for ECGs Made Easy
x x x x x




7th Edition by Barbara J Aehlert
x x x x x x




Chapters 1 - 10
x x x x

,ECGs Made Easy 7th Edition by Barbara Aehlert Test Bank
x x x x x x x x x




Table of Contents:
x x




Chapter 1. Anatomy & Physiology
x x x x




Chapter 2. Basic Electrophysiology
x x x




Chapter 3. Sinus Mechanisms
x x x




Chapter 4. Atrial Rhythms
x x x




Chapter 5. Junctional Rhythms
x x x




Chapter 6. Ventricular Rhythms
x x x




Chapter 7. Atrioventricular Blocks
x x x




Chapter 8. Pacemaker Rhythms
x x x




Chapter 9. Introduction to the 12-Lead ECG
x x x x x x




Chapter 10. Post-Test
x x

,Chapter 01: Anatomy and Physiology
x x x x



Aehlert: ECGs Made Easy, 7th Edition
x x x x x x




MULTIPLE CHOICE x




1. The apex of the heart is formed by the
x x x x x x x x .
a. tip of the left ventricle
x x x x



b. tip of the right atrium
x x x x



c. right atrium and right ventricle
x x x x



d. left atrium and left ventricle
x x x x




ANSWER: A x



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



above the diaphragm, between the fifth and sixth ribs, in the midclavicular line.
x x x x x x x x x x x x x




OBJ: Identify the surfaces of the heart.
x x x x x x




2. The left atrium receives blood from the
x x x x x x .
a. pulmonary veins x



b. aorta
c. pulmonary arteries x



d. inferior vena cava x x




ANSWER: A x



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



pulmonary veins.
x x




OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
x x x x x x x x x x x x x x x x




3. The anterior surface of the heart consists primarily of the
x x x x x x x x x .
a. left atrium x



b. right atrium x



c. left ventricle x



d. right ventricle x




ANSWER: D x



The front (anterior) surface of the heart lies behind the sternum and costal cartilages. It is
x x x x x x x x x x x x x x x



formed by portions of the right atrium and the left and right ventricles. However, because the
x x x x x x x x x x x x x x x x



heart is tilted slightly toward the left in the chest, the right ventricle is the area of the heart that
x x x x x x x x x x x x x x x x x x x x



lies most directly behind the sternum.
x x x x x x




OBJ: Identify the surfaces of the heart.
x x x x x x




4. Blood pressure is determined by
x multiplied by x x x x .
a. stroke volume; heart rate x x x



b. heart rate; cardiac output x x x



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



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




ANSWER: C x



Blood pressure is equal to cardiac output multiplied by peripheral vascular resistance.
x x x x x x x x x x x

, OBJ: Identify and explain the components of blood pressure and cardiac output.
x x x x x x x x x x x




5. The right atrium receives venous blood from the head, neck, and thorax via the
x x x x x x x x x x x x x , from
x



xthe remainder of the body via the
x , and from the heart via the x x x x x x x x x x x .
a. coronary sinus; superior vena cava; inferior vena cava x x x x x x x



b. superior vena cava; coronary sinus; inferior vena cava x x x x x x x



c. inferior vena cava; superior vena cava; coronary sinus x x x x x x x



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




ANSWER: D x



The right atrium receives blood low in oxygen from the superior vena cava, which carries
x x x x x x x x x x x x x x



blood from the head and upper extremities; the inferior vena cava, which carries blood from
x x x x x x x x x x x x x x x



the lower body; and the coronary sinus, which is the largest vein that drains the heart.
x x x x x x x x x x x x x x x x




OBJ: x Identify and describe the chambers of the heart and the vessels that enter or leave each.
x x x x x x x x x x x x x x x




6. The heart is divided into
x x x x chambers but functions as a x x x x -sided pump. x



a. two; four x



b. three; two x



c. four; two x



d. four; three x




ANSWER: C x



The heart has four chambers: two atria and two ventricles. The right and left sides of the heart
x x x x x x x x x x x x x x x x x



are separated by an internal wall of connective tissue called a septum. The interatrial septum
x x x x x x x x x x x x x x x



separates the right and left atria. The interventricular septum separates the right and left
x x x x x x x x x x x x x x



ventricles. The septa separate the heart into two functional pumps. The right atrium and right
x x x x x x x x x x x x x x x



ventricle make up one pump. The left atrium and left ventricle make up the other.
x x x x x x x x x x x x x x x




OBJ: Identify and describe the chambers of the heart and the vessels that enter or leave each.
x x x x x x x x x x x x x x x x




7. Stimulation of alpha1 receptors results in x x x x x .
a. increased heart rate x x



b. peripheral vasoconstriction x



c. constriction of bronchial smooth muscle x x x x



d. increased force of myocardial contraction x x x x




ANSWER: B x



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



Stimulation of alpha1 receptor sites results in constriction.
x x x x x x x x




OBJ: Compare and contrast the effects of sympathetic and parasympathetic stimulation of the heart.
x x x x x x x x x x x x x




8. Which side of the heart is a low-pressure system that pumps venous blood to the lungs?
x x x x x x x x x x x x x x x



a. Left
b. Right
ANSWER: B x



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



to the left side of the heart. This is called the pulmonary circulation. The right side of the heart is
x x x x x x x x x x x x x x x x x x x x



a low-pressure system.
x x x