Question 1

Completion
-When reviewing a 12-lead ECG, intervals and duration are usually expressed in _____.

Accepted Answer

The answer of Completion
-When reviewing a 12-lead ECG, intervals and...

Question 2

Tall, peaked T waves observed on the ECG are most commonly seen in patients with _____.

Accepted Answer

A)  hypokalemia 
B)  hyponatremia 
C)  hyperkalemia 
D)  hypernatremia 
A)  hypokalemia 
B)  hyponatremia 
C)  hyperkalemia 
D)  hypernatremia

Question 3

On an ECG, what is the first negative deflection seen after the P wave?

Accepted Answer

A)  Q wave 
B)  R wave 
C)  S wave 
D)  T wave 
A)  Q wave 
B)  R wave 
C)  S wave 
D)  T wave

Question 4

Where is the positive electrode placed in lead III?

Accepted Answer

A)  Right arm 
B)  Left arm 
C)  Left leg or foot 
D)  Right leg or foot 
A)  Right arm 
B)  Left arm 
C)  Left leg or foot 
D)  Right leg or foot

Question 5

The inferior surface of the left ventricle is supplied by the _____ coronary artery in most of the population.

Accepted Answer

A)  left 
B)  right 
A)  left 
B)  right

Question 6

Anterior wall myocardial infarctions are most often a result of an occlusion of a branch of the _____ coronary artery.

Accepted Answer

A)  left 
B)  right 
A)  left 
B)  right

Question 7

Lead III views the _____ wall of the left ventricle.

Accepted Answer

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

Question 8

Which of the following correctly describes multifocal atrial tachycardia?

Accepted Answer

A)  The atrial rhythm is regular. 
B)  The ventricular rhythm is irregular. 
C)  The atrial and ventricular rhythms are regular. 
D)  The atrial and ventricular rhythms are irregular. 
A)  The atrial rhythm is regular. 
B)  The ventricular rhythm is irregular. 
C)  The atrial and ventricular rhythms are regular. 
D)  The atrial and ventricular rhythms are irregular.

Question 9

Complete the following:

Accepted Answer

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

Question 10

The term acute coronary syndromes refers to patients presenting with ischemic chest pain.

Accepted Answer

A) True 
 B)False

Question 11

_____ is a term used to describe the period of recovery that cells need after being discharged before they are able to respond to a stimulus.

Accepted Answer

A)  Irritability 
B)  Polarization 
C)  Conductivity 
D)  Refractoriness 
A)  Irritability 
B)  Polarization 
C)  Conductivity 
D)  Refractoriness

Question 12

What is a biphasic waveform?

Accepted Answer

A biphasic waveform is partly

Question 13

A delta wave is an ECG characteristic associated with which of the following dysrhythmias?

Accepted Answer

A)  Junctional rhythm 
B)  AV nodal reentrant tachycardia (AVNRT) 
C)  Wolff-Parkinson-White (WPW) syndrome 
D)  Accelerated idioventricular rhythm (AIVR) 
A)  Junctional rhythm 
B)  AV nodal reentrant tachycardia (AVNRT) 
C)  Wolff-Parkinson-White (WPW) syndrome 
D)  Accelerated idioventricular rhythm (AIVR)

Question 14

Explain the meaning of the letters in aVR, aVL, and aVF.

Accepted Answer

The a in aVR, aVL, and aVF refers to aug

Question 15

An ECG machine's sensitivity must be calibrated so that a 1-mV electrical signal will produce a deflection measuring exactly _____-mm tall.

Accepted Answer

A)  0.5 
B)  1 
C)  5 
D)  10 
A)  0.5 
B)  1 
C)  5 
D)  10

Question 16

The point where the QRS complex and ST segment meet is called the ST junction or the J point.

Accepted Answer

A) True 
 B)False

Question 17

Completion
-A(n) __________ occurs as a result of an electrical impulse from a supraventricular site (such as the SA node) discharging at the same time as an ectopic site in the ventricles.

Accepted Answer

The answer of Completion
-A(n) __________ occurs as a result of...

Question 18

Completion
-If the AV junction paces the heart, the electrical impulse must travel in a backward direction to activate the atria. This is called _____ conduction.

Accepted Answer

The answer of Completion
-If the AV junction paces the heart,...

Question 19

Proper positioning of the electrodes for leads I, II, and III requires placement on the patient's torso.

Accepted Answer

A) True 
 B)False

Question 20

Which of the following are chest leads?

Accepted Answer

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

Completion -When reviewing a 12-lead ECG, intervals and duration are usually expressed in _____.

Tall, peaked T waves observed on the ECG are most commonly seen in patients with _____.

On an ECG, what is the first negative deflection seen after the P wave?

Where is the positive electrode placed in lead III?

The inferior surface of the left ventricle is supplied by the _____ coronary artery in most of the population.

Anterior wall myocardial infarctions are most often a result of an occlusion of a branch of the _____ coronary artery.

Lead III views the _____ wall of the left ventricle.

Which of the following correctly describes multifocal atrial tachycardia?

Complete the following:

The term acute coronary syndromes refers to patients presenting with ischemic chest pain.

_____ is a term used to describe the period of recovery that cells need after being discharged before they are able to respond to a stimulus.

What is a biphasic waveform?

A delta wave is an ECG characteristic associated with which of the following dysrhythmias?

Explain the meaning of the letters in aVR, aVL, and aVF.

An ECG machine's sensitivity must be calibrated so that a 1-mV electrical signal will produce a deflection measuring exactly _____-mm tall.

The point where the QRS complex and ST segment meet is called the ST junction or the J point.

Completion -A(n) __________ occurs as a result of an electrical impulse from a supraventricular site (such as the SA node) discharging at the same time as an ectopic site in the ventricles.

Completion -If the AV junction paces the heart, the electrical impulse must travel in a backward direction to activate the atria. This is called _____ conduction.

Proper positioning of the electrodes for leads I, II, and III requires placement on the patient's torso.

Which of the following are chest leads?

Anatomy and Physiology

Basic Electrophysiology

Sinus Mechanisms

Atrial Rhythms

Junctional Rhythms

Ventricular Rhythms

Atrioventricular Blocks

Pacemaker Rhythms

Introduction to the 12-Lead Electrocardiogram

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Exam 10: Posttest

Completion -When reviewing a 12-lead ECG, intervals and duration are usually expressed in _____.

Tall, peaked T waves observed on the ECG are most commonly seen in patients with _____.

On an ECG, what is the first negative deflection seen after the P wave?

Where is the positive electrode placed in lead III?

The inferior surface of the left ventricle is supplied by the _____ coronary artery in most of the population.

Anterior wall myocardial infarctions are most often a result of an occlusion of a branch of the _____ coronary artery.

Lead III views the _____ wall of the left ventricle.

Which of the following correctly describes multifocal atrial tachycardia?

Complete the following:

The term acute coronary syndromes refers to patients presenting with ischemic chest pain.

_____ is a term used to describe the period of recovery that cells need after being discharged before they are able to respond to a stimulus.

What is a biphasic waveform?

A delta wave is an ECG characteristic associated with which of the following dysrhythmias?

Explain the meaning of the letters in aVR, aVL, and aVF.

An ECG machine's sensitivity must be calibrated so that a 1-mV electrical signal will produce a deflection measuring exactly _____-mm tall.

The point where the QRS complex and ST segment meet is called the ST junction or the J point.

Completion -A(n) __________ occurs as a result of an electrical impulse from a supraventricular site (such as the SA node) discharging at the same time as an ectopic site in the ventricles.

Completion -If the AV junction paces the heart, the electrical impulse must travel in a backward direction to activate the atria. This is called _____ conduction.

Proper positioning of the electrodes for leads I, II, and III requires placement on the patient's torso.

Which of the following are chest leads?

Anatomy and Physiology

Basic Electrophysiology

Sinus Mechanisms

Atrial Rhythms

Junctional Rhythms

Ventricular Rhythms

Atrioventricular Blocks

Pacemaker Rhythms

Introduction to the 12-Lead Electrocardiogram

Filters