Test Bank for ECGs Made Easy, 7th Edition Author: Barbara J. Aehlert Chapters: 1–10 (Complete)

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

,ECGs Made Easy 7th Edition by Barbara Aehlert Test Bank
Table of Contents:

Chapter 1. Anatomy & Physiology

Chapter 2. Basic Electrophysiology

Chapter 3. Sinus Mechanisms

Chapter 4. Atrial Rhythms

Chapter 5. Junctional Rhythms

Chapter 6. Ventricular Rhythms

Chapter 7. Atrioventricular Blocks

Chapter 8. Pacemaker Rhythms

Chapter 9. Introduction to the 12-Lead ECG

Chapter 10. Post-Test

,Chapter 01: Anatomy and Physiology
Aehlert: ECGs Made Easy, 7th Edition


MULTIPLE CHOICE

1. The apex of the heart is formed by the .
a. tip of the left ventricle
b. tip of the right atrium
c. right atrium and right ventricle
d. left atrium and left ventricle
ANSWER: A
The heart’s apex, or lower portion, is formed by the tip of the left ventricle. The apex lies just
above the diaphragm, between the fifth and sixth ribs, in the midclavicular line.

OBJ: Identify the surfaces of the heart.

2. The left atrium receives blood from the .
a. pulmonary veins
b. aorta
c. pulmonary arteries
d. inferior vena cava
ANSWER: A
The left atrium receives freshly oxygenated blood from the lungs via the right and left
pulmonary veins.

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

3. The anterior surface of the heart consists primarily of the .
a. left atrium
b. right atrium
c. left ventricle
d. right ventricle
ANSWER: D
The front (anterior) surface of the heart lies behind the sternum and costal cartilages. It is
formed by portions of the right atrium and the left and right ventricles. However, because the
heart is tilted slightly toward the left in the chest, the right ventricle is the area of the heart that
lies most directly behind the sternum.

OBJ: Identify the surfaces of the heart.

4. Blood pressureis determined by
* * * multiplied by * * .
a. strokevolume; heart rate
* * *




b. heartrate; cardiac output
* * *




c. cardiacoutput;peripheral vascularresistance
* * * *




d. strokevolume;peripheral vascularresistance
* * * *




ANSWER: C *




Bloodpressureis equal to cardiac output multiplied byperipheralvascular resistance.
* * * * * * * * * * *

, OBJ: Identifyandexplain the components of blood pressure and cardiacoutput.
* * * * * * * * * * *




5. The right atrium receives venousblood fromthe head, neck, and thorax via the ,fromthe
* * * * * * * * * * * * * * *




*remainder of the bodyvia the , and from the heart via the * * * * * * * * * * * .
a. coronarysinus; superior vena cava; inferior vena cava * * * * * * *




b. superior venacava; coronarysinus; inferior vena cava * * * * * * *




c. inferiorvena cava; superiorvena cava; coronarysinus * * * * * * *




d. superior venacava; inferior vena cava; coronarysinus * * * * * * *




ANSWER: D *




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




from the head and upper extremities; the inferior vena cava, which carries blood fromthe lower
* * * * * * * * * * * * * * * *




body; and the coronarysinus, which is the largest vein thatdrains the heart.
* * * * * * * * * * * * * *




OBJ: Identifyanddescribe the chambers of the heart andthe vessels thatenteror leave each.
* * * * * * * * * * * * * * * *




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 *




ANSWER: C *




The heart has four chambers: two atria and two ventricles.The right and left sidesof theheartare
* * * * * * * * * * * * * * * * * *




separated by an internal wall of connective tissue called a septum. The interatrial septum separates
* * * * * * * * * * * * * * *




the right and left atria. The interventricular septum separates the right and left ventricles. The septa
* * * * * * * * * * * * * * * *




separate the heart into two functional pumps. The right atrium and right ventriclemake up one
* * * * * * * * * * * * * * * *




pump.The left atrium and left ventricle make up the other.
* * * * * * * * * * *




OBJ: Identifyanddescribe the chambers of the heart andthe vessels thatenteror leave each.
* * * * * * * * * * * * * * * *




7. Stimulation ofalpha1 receptorsresults in * * * * * .
a. increasedheart rate * *




b. peripheralvasoconstriction *




c. constriction ofbronchial smooth muscle * * * *




d. increasedforce ofmyocardial contraction * * * *




ANSWER: B *




Alpha1 receptors arefound intheeyes, blood vessels, bladder,and malereproductive
* * * * * * * * * * * *




organs.Stimulation of alpha1 receptor sites results in constriction.
* * * * * * * * *




OBJ: Compareandcontrast theeffectsofsympatheticand parasympatheticstimulation of theheart.
* * * * * * * * * * * * *




8. Whichside of the heart is alow-pressuresystem that pumps venous blood to thelungs?
* * * * * * * * * * * * * * *




a. Left
b. Right
ANSWER: B *




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




sideofthe heart.This is called thepulmonary circulation.The right side ofthe heartis a low-pressure
* * * * * * * * * * * * * * * * * * *




system.
*