Question 1

The anterior surface of the heart consists primarily of the _____.

Accepted Answer

A)  left atrium 
B)  right atrium 
C)  left ventricle 
D)  right ventricle 
A)  left atrium 
B)  right atrium 
C)  left ventricle 
D)  right ventricle D

Question 2

Which side of the heart is a high-pressure system that pumps arterial blood to the systemic circulation?

Accepted Answer

A)  Left 
B)  Right 
A)  Left 
B)  Right A

Question 3

Completion
-Sometimes, when a premature atrial complex (PAC) occurs very prematurely and close to the T wave of the preceding beat, only a P wave may be seen with no QRS after it (appearing as a pause). This type of PAC is termed a(n) _____ PAC.

Accepted Answer

nonconducted
blocked

Question 4

Indicate the heart surface viewed by each of the following:
 $$\begin{array} { | l | l | } 
\hline \text { Leads } & \begin{array} { l } 
\text { Heart Surface } \
\text { Viewed }
\end{array} \
\hline \mathrm { I } _ { 1 } , \mathrm { III } _ { , } \text {aVF } & \
\hline \mathrm { V } _ { 1 } , \mathrm {~V} _ { \mathbf { 2 } } & \
\hline \mathrm { V } _ { \mathrm { g } , } \mathrm { V } _ { 4 } & \
\hline \mathrm { I } _ { 2 } \mathrm {~V} _ { \mathrm { V } } , \mathrm { V } _ { 5 } , \mathrm {~V} _ { 6 } & \
\hline
\end{array}$$

Accepted Answer

\[\begin{array} { | l | l | } 
\hline \t

Question 5

A macroreentrant circuit is one that involves a small area of heart tissue, usually a few centimeters or less.

Accepted Answer

A) True 
 B)False

Question 6

The electrocardiogram (ECG) is a reflection of the heart's mechanical activity.

Accepted Answer

A) True 
 B)False

Question 7

A Q wave, if present, is always a negative waveform.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following correctly reflects the ECG indicators of ischemia?

Accepted Answer

A)  Pathologic Q waves, ST-segment elevation 
B)  ST-segment elevation, T-wave inversion 
C)  ST-segment depression, T-wave inversion 
D)  Pathologic Q waves, ST-segment depression 
A)  Pathologic Q waves, ST-segment elevation 
B)  ST-segment elevation, T-wave inversion 
C)  ST-segment depression, T-wave inversion 
D)  Pathologic Q waves, ST-segment depression

Question 9

The six limb leads view the heart in the frontal plane as if the body were flat.

Accepted Answer

A) True 
 B)False

Question 10

The term ectopic refers to an extra muscle bundle consisting of working myocardial tissue that forms a connection between the atria and ventricles outside the normal conduction system.

Accepted Answer

A) True 
 B)False

Question 11

Myocardial ischemia delays the process of repolarization; therefore the ECG changes characteristic of ischemia include _____.

Accepted Answer

A)  widening of the QRS complex 
B)  prolongation of the PR interval 
C)  changes in the ST segment and T wave 
D)  changes in the QRS complex and ST segment 
A)  widening of the QRS complex 
B)  prolongation of the PR interval 
C)  changes in the ST segment and T wave 
D)  changes in the QRS complex and ST segment

Question 12

Your patient has a VVI pacemaker. Briefly explain the meaning of each of these letters.

Accepted Answer

A ventricular demand (VVI) pacemaker is

Question 13

V4R, V5R, and V6R are used to view the posterior wall of the left ventricle.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following are chest leads?

Accepted Answer

A)  Leads I, II, and III 
B)  Leads I and aVL 
C)  Leads V1, V2, V3, V4, V5, and V6 
D)  Leads I, II, III, aVR, aVL, and aVF 
A)  Leads I, II, and III 
B)  Leads I and aVL 
C)  Leads V1, V2, V3, V4, V5, and V6 
D)  Leads I, II, III, aVR, aVL, and aVF

Question 15

Atrial fibrillation is characterized by _____.

Accepted Answer

A)  an erratic, wavy baseline and irregular ventricular rhythm 
B)  "saw-tooth"- or "picket-fence"-shaped waveforms preceding each QRS 
C)  one P wave before each QRS and a regular ventricular rate of 60 to 100 beats/min 
D)  P waves occurring before, during, or after the QRS complex; when seen, they are inverted 
A)  an erratic, wavy baseline and irregular ventricular rhythm 
B)  "saw-tooth"- or "picket-fence"-shaped waveforms preceding each QRS 
C)  one P wave before each QRS and a regular ventricular rate of 60 to 100 beats/min 
D)  P waves occurring before, during, or after the QRS complex; when seen, they are inverted

Question 16

Two conditions must exist to suspect bundle branch block. First, the QRS complex must have an abnormal duration (0.12 second or more in width), and second _____.

Accepted Answer

A)  an RSR' complex must be seen in leads V1-V6 
B)  a QS pattern must be seen in leads I, II, and III 
C)  a slurred upstroke of the QRS complex must exist 
D)  the QRS complex must arise as the result of supraventricular activity 
A)  an RSR' complex must be seen in leads V1-V6 
B)  a QS pattern must be seen in leads I, II, and III 
C)  a slurred upstroke of the QRS complex must exist 
D)  the QRS complex must arise as the result of supraventricular activity

Question 17

When is the term intraventricular conduction delay used?

Accepted Answer

A QRS measuring 0.10 to 0.12 second is c

Question 18

Explain the benefits of a dual-chamber pacemaker.

Accepted Answer

A dual-chamber pacemaker stimulates the

Question 19

Completion
-An accessory pathway that has one end attached to normal conductive tissue is called a(n) __________.

Accepted Answer

The answer of Completion
-An accessory pathway that has one end...

Question 20

The left atrium receives blood from the _____.

Accepted Answer

A)  aorta 
B)  pulmonary veins 
C)  pulmonary arteries 
D)  inferior vena cava 
A)  aorta 
B)  pulmonary veins 
C)  pulmonary arteries 
D)  inferior vena cava

The anterior surface of the heart consists primarily of the _____.

Which side of the heart is a high-pressure system that pumps arterial blood to the systemic circulation?

Completion -Sometimes, when a premature atrial complex (PAC) occurs very prematurely and close to the T wave of the preceding beat, only a P wave may be seen with no QRS after it (appearing as a pause). This type of PAC is termed a(n) _____ PAC.

Indicate the heart surface viewed by each of the following: Leads Heart Surface Viewed , aVF , ,,

A macroreentrant circuit is one that involves a small area of heart tissue, usually a few centimeters or less.

The electrocardiogram (ECG) is a reflection of the heart's mechanical activity.

A Q wave, if present, is always a negative waveform.

Which of the following correctly reflects the ECG indicators of ischemia?

The six limb leads view the heart in the frontal plane as if the body were flat.

The term ectopic refers to an extra muscle bundle consisting of working myocardial tissue that forms a connection between the atria and ventricles outside the normal conduction system.

Myocardial ischemia delays the process of repolarization; therefore the ECG changes characteristic of ischemia include _____.

Your patient has a VVI pacemaker. Briefly explain the meaning of each of these letters.

V₄R, V₅R, and V₆R are used to view the posterior wall of the left ventricle.

Which of the following are chest leads?

Atrial fibrillation is characterized by _____.

Two conditions must exist to suspect bundle branch block. First, the QRS complex must have an abnormal duration (0.12 second or more in width), and second _____.

When is the term intraventricular conduction delay used?

Explain the benefits of a dual-chamber pacemaker.

Completion -An accessory pathway that has one end attached to normal conductive tissue is called a(n) __________.

The left atrium receives blood from the _____.

Anatomy and Physiology

Basic Electrophysiology

Sinus Mechanisms

Atrial Rhythms

Junctional Rhythms

Ventricular Rhythms

Atrioventricular Blocks

Pacemaker Rhythms

Introduction to the 12-Lead Electrocardiogram

Filters

Exam 10: Posttest

The anterior surface of the heart consists primarily of the _____.

Which side of the heart is a high-pressure system that pumps arterial blood to the systemic circulation?

Completion -Sometimes, when a premature atrial complex (PAC) occurs very prematurely and close to the T wave of the preceding beat, only a P wave may be seen with no QRS after it (appearing as a pause). This type of PAC is termed a(n) _____ PAC.

Indicate the heart surface viewed by each of the following: Leads Heart Surface Viewed , aVF , ,,

A macroreentrant circuit is one that involves a small area of heart tissue, usually a few centimeters or less.

The electrocardiogram (ECG) is a reflection of the heart's mechanical activity.

A Q wave, if present, is always a negative waveform.

Which of the following correctly reflects the ECG indicators of ischemia?

The six limb leads view the heart in the frontal plane as if the body were flat.

The term ectopic refers to an extra muscle bundle consisting of working myocardial tissue that forms a connection between the atria and ventricles outside the normal conduction system.

Myocardial ischemia delays the process of repolarization; therefore the ECG changes characteristic of ischemia include _____.

Your patient has a VVI pacemaker. Briefly explain the meaning of each of these letters.

V4R, V5R, and V6R are used to view the posterior wall of the left ventricle.

Which of the following are chest leads?

Atrial fibrillation is characterized by _____.

Two conditions must exist to suspect bundle branch block. First, the QRS complex must have an abnormal duration (0.12 second or more in width), and second _____.

When is the term intraventricular conduction delay used?

Explain the benefits of a dual-chamber pacemaker.

Completion -An accessory pathway that has one end attached to normal conductive tissue is called a(n) __________.

The left atrium receives blood from the _____.

Anatomy and Physiology

Basic Electrophysiology

Sinus Mechanisms

Atrial Rhythms

Junctional Rhythms

Ventricular Rhythms

Atrioventricular Blocks

Pacemaker Rhythms

Introduction to the 12-Lead Electrocardiogram

Filters

V₄R, V₅R, and V₆R are used to view the posterior wall of the left ventricle.