Question 1

How do you determine whether the atrial rhythm on an ECG tracing is regular or irregular?

Accepted Answer

A)  Compare QT intervals. 
B)  Compare PR intervals. 
C)  Compare R to R intervals. 
D)  Compare P to P intervals. 
A)  Compare QT intervals. 
B)  Compare PR intervals. 
C)  Compare R to R intervals. 
D)  Compare P to P intervals.

Question 2

Match each item to the correct description below.
-ECG changes observed in leads opposite the affected area of the heart; also called mirror image changes.

Accepted Answer

A) Ventricular 
B) Atrial 
C) Repolarization 
D) Augmented 
E) Reciprocal changes
F)Indicative changes
G)Reentry
H)Ectopic
I)Positive
J)Amplitude
K)Voltmeter
L)Supranormal
M)Electrolyte 
A) Ventricular 
B) Atrial 
C) Repolarization 
D) Augmented 
E) Reciprocal changes
F)Indicative changes
G)Reentry
H)Ectopic
I)Positive
J)Amplitude
K)Voltmeter
L)Supranormal
M)Electrolyte

Question 3

On the ECG, what do the ST segment and T wave represent?

Accepted Answer

On the ECG, the ST segment rep

Question 4

In the heart's conduction system, the _____ receive(s) an electrical impulse from the bundle of His and relay(s) it to the Purkinje fibers in the ventricular myocardium.

Accepted Answer

A)  atrioventricular (AV) node 
B)  atria 
C)  sinoatrial (S
A)  node 
D)  right and left bundle branches 
A)  atrioventricular (AV) node 
B)  atria 
C)  sinoatrial (S
A)  node 
D)  right and left bundle branches

Question 5

Completion 
-The cells of the heart that contain contractile filaments are called _____ cells.

Accepted Answer

The answer of Completion 
-The cells of the heart that...

Question 6

The period of time during the cardiac cycle when cells cannot respond to a stimulus, no matter how strong, is the relative refractory period.

Accepted Answer

A) True 
 B)False

Question 7

Match each item to the correct description below.
-Element or compound that breaks into charged particles (ions) when melted or dissolved in water or another solvent.

Accepted Answer

A) Ventricular 
B) Atrial 
C) Repolarization 
D) Augmented 
E) Reciprocal changes
F)Indicative changes
G)Reentry
H)Ectopic
I)Positive
J)Amplitude
K)Voltmeter
L)Supranormal
M)Electrolyte 
A) Ventricular 
B) Atrial 
C) Repolarization 
D) Augmented 
E) Reciprocal changes
F)Indicative changes
G)Reentry
H)Ectopic
I)Positive
J)Amplitude
K)Voltmeter
L)Supranormal
M)Electrolyte

Question 8

What does the QRS complex represent?

Accepted Answer

A)  Atrial depolarization 
B)  Ventricular contraction 
C)  Ventricular repolarization 
D)  Ventricular depolarization 
A)  Atrial depolarization 
B)  Ventricular contraction 
C)  Ventricular repolarization 
D)  Ventricular depolarization

Question 9

List four major electrolytes that influence cardiac function.

Accepted Answer

Sodium, po

Question 10

Match each item to the correct description below.
-Impulse(s) originating from a source other than the SA node.

Accepted Answer

A) Ventricular 
B) Atrial 
C) Repolarization 
D) Augmented 
E) Reciprocal changes
F)Indicative changes
G)Reentry
H)Ectopic
I)Positive
J)Amplitude
K)Voltmeter
L)Supranormal
M)Electrolyte 
A) Ventricular 
B) Atrial 
C) Repolarization 
D) Augmented 
E) Reciprocal changes
F)Indicative changes
G)Reentry
H)Ectopic
I)Positive
J)Amplitude
K)Voltmeter
L)Supranormal
M)Electrolyte

Question 11

Leads I, aVL, V?, and V? view the _____ surface of the left ventricle.

Accepted Answer

A)  anterior 
B)  septal 
C)  inferior 
D)  lateral 
A)  anterior 
B)  septal 
C)  inferior 
D)  lateral

Question 12

Leads II, III, and aVF view the _____ surface of the left ventricle.

Accepted Answer

A)  anterior 
B)  inferior 
C)  septal 
D)  lateral 
A)  anterior 
B)  inferior 
C)  septal 
D)  lateral

Question 13

_____ is the ability of cardiac pacemaker cells to spontaneously initiate an electrical impulse without being stimulated from another source, such as a nerve.

Accepted Answer

A)  Excitability 
B)  Conductivity 
C)  Automaticity 
D)  Contractility 
A)  Excitability 
B)  Conductivity 
C)  Automaticity 
D)  Contractility

Question 14

On the ECG, the time necessary for the spread of an electrical impulse through the AV node, bundle of His, right and left bundle branches, and the Purkinje fibers is reflected by the _____.

Accepted Answer

A)  TP segment 
B)  PR segment 
C)  QT interval 
D)  QRS duration 
A)  TP segment 
B)  PR segment 
C)  QT interval 
D)  QRS duration

Question 15

Match each item to the correct description below.
-An ECG machine is a sophisticated _____.

Accepted Answer

A) Ventricular 
B) Atrial 
C) Repolarization 
D) Augmented 
E) Reciprocal changes
F)Indicative changes
G)Reentry
H)Ectopic
I)Positive
J)Amplitude
K)Voltmeter
L)Supranormal
M)Electrolyte 
A) Ventricular 
B) Atrial 
C) Repolarization 
D) Augmented 
E) Reciprocal changes
F)Indicative changes
G)Reentry
H)Ectopic
I)Positive
J)Amplitude
K)Voltmeter
L)Supranormal
M)Electrolyte

Question 16

List the ECG leads that view the heart in the horizontal plane, allowing a view of the front and left sides of the heart.

Accepted Answer

Six chest (precordial or V) le

Question 17

In the limb leads, the ST segment is normally isoelectric, or less than 1 mm above or below the isoelectric line.

Accepted Answer

A) True 
 B)False

Question 18

Match each item to the correct description below.
-The QRS complex represents _____ depolarization.

Accepted Answer

A) Ventricular 
B) Atrial 
C) Repolarization 
D) Augmented 
E) Reciprocal changes
F)Indicative changes
G)Reentry
H)Ectopic
I)Positive
J)Amplitude
K)Voltmeter
L)Supranormal
M)Electrolyte 
A) Ventricular 
B) Atrial 
C) Repolarization 
D) Augmented 
E) Reciprocal changes
F)Indicative changes
G)Reentry
H)Ectopic
I)Positive
J)Amplitude
K)Voltmeter
L)Supranormal
M)Electrolyte

Question 19

When the cardiac muscle cell is stimulated, the cell is said to _____.

Accepted Answer

A)  polarize 
B)  recover 
C)  depolarize 
D)  repolarize 
A)  polarize 
B)  recover 
C)  depolarize 
D)  repolarize

Question 20

Completion 
-A line between waveforms is called a(n) _____.

Accepted Answer

The answer of Completion 
-A line between waveforms is called...

How do you determine whether the atrial rhythm on an ECG tracing is regular or irregular?

Match each item to the correct description below. -ECG changes observed in leads opposite the affected area of the heart; also called mirror image changes.

On the ECG, what do the ST segment and T wave represent?

In the heart's conduction system, the _____ receive(s) an electrical impulse from the bundle of His and relay(s) it to the Purkinje fibers in the ventricular myocardium.

Completion -The cells of the heart that contain contractile filaments are called _____ cells.

The period of time during the cardiac cycle when cells cannot respond to a stimulus, no matter how strong, is the relative refractory period.

Match each item to the correct description below. -Element or compound that breaks into charged particles (ions) when melted or dissolved in water or another solvent.

What does the QRS complex represent?

List four major electrolytes that influence cardiac function.

Match each item to the correct description below. -Impulse(s) originating from a source other than the SA node.

Leads I, aVL, V?, and V? view the _____ surface of the left ventricle.

Leads II, III, and aVF view the _____ surface of the left ventricle.

_____ is the ability of cardiac pacemaker cells to spontaneously initiate an electrical impulse without being stimulated from another source, such as a nerve.

On the ECG, the time necessary for the spread of an electrical impulse through the AV node, bundle of His, right and left bundle branches, and the Purkinje fibers is reflected by the _____.

Match each item to the correct description below. -An ECG machine is a sophisticated _____.

List the ECG leads that view the heart in the horizontal plane, allowing a view of the front and left sides of the heart.

In the limb leads, the ST segment is normally isoelectric, or less than 1 mm above or below the isoelectric line.

Match each item to the correct description below. -The QRS complex represents _____ depolarization.

When the cardiac muscle cell is stimulated, the cell is said to _____.

Completion -A line between waveforms is called a(n) _____.

Anatomy and Physiology

Sinus Mechanisms

Atrial Rhythms

Junctional Rhythms

Ventricular Rhythms

Atrioventricular Blocks

Pacemaker Rhythms

Introduction to the 12-Lead Electrocardiogram

Posttest

Filters

Exam 2: Basic Electrophysiology

How do you determine whether the atrial rhythm on an ECG tracing is regular or irregular?

Match each item to the correct description below. -ECG changes observed in leads opposite the affected area of the heart; also called mirror image changes.

On the ECG, what do the ST segment and T wave represent?

In the heart's conduction system, the _____ receive(s) an electrical impulse from the bundle of His and relay(s) it to the Purkinje fibers in the ventricular myocardium.

Completion -The cells of the heart that contain contractile filaments are called _____ cells.

The period of time during the cardiac cycle when cells cannot respond to a stimulus, no matter how strong, is the relative refractory period.

Match each item to the correct description below. -Element or compound that breaks into charged particles (ions) when melted or dissolved in water or another solvent.

What does the QRS complex represent?

List four major electrolytes that influence cardiac function.

Match each item to the correct description below. -Impulse(s) originating from a source other than the SA node.

Leads I, aVL, V?, and V? view the _____ surface of the left ventricle.

Leads II, III, and aVF view the _____ surface of the left ventricle.

_____ is the ability of cardiac pacemaker cells to spontaneously initiate an electrical impulse without being stimulated from another source, such as a nerve.

On the ECG, the time necessary for the spread of an electrical impulse through the AV node, bundle of His, right and left bundle branches, and the Purkinje fibers is reflected by the _____.

Match each item to the correct description below. -An ECG machine is a sophisticated _____.

List the ECG leads that view the heart in the horizontal plane, allowing a view of the front and left sides of the heart.

In the limb leads, the ST segment is normally isoelectric, or less than 1 mm above or below the isoelectric line.

Match each item to the correct description below. -The QRS complex represents _____ depolarization.

When the cardiac muscle cell is stimulated, the cell is said to _____.

Completion -A line between waveforms is called a(n) _____.

Anatomy and Physiology

Sinus Mechanisms

Atrial Rhythms

Junctional Rhythms

Ventricular Rhythms

Atrioventricular Blocks

Pacemaker Rhythms

Introduction to the 12-Lead Electrocardiogram

Posttest

Filters