Question 1

Which of the following are considered to be precordial leads? 
I. Lead I, II, III
II. AVR, aVL, aVF
III. V1, V2, V3, V4, V5, V6

Accepted Answer

A)  I only 
B)  I and II only 
C)  I, II, and III 
D)  III only 
A)  I only 
B)  I and II only 
C)  I, II, and III 
D)  III only

Question 2

What are the normal ECG configurations composed of? 
I. waves
II. Complexes
III. Segments
IV. Intervals

Accepted Answer

A)  I and II only 
B)  II, III, and IV only 
C)  II and III only 
D)  I, II, III, and IV 
A)  I and II only 
B)  II, III, and IV only 
C)  II and III only 
D)  I, II, III, and IV

Question 3

When electrical impulses travel toward the positive electrode, what waveform would be recorded on the ECG tracing?

Accepted Answer

A)  negative deflection 
B)  positive deflection 
C)  straight line 
D)  equiphasic deflection 
A)  negative deflection 
B)  positive deflection 
C)  straight line 
D)  equiphasic deflection

Question 4

What is the correct electrode placement for the modified chest lead?

Accepted Answer

A)  positive electrode at V6, negative electrode on right shoulder or arm 
B)  positive electrode at V1, negative electrode on left arm or shoulder 
C)  positive electrode at V2, negative electrode on right shoulder or arm 
D)  positive electrode at V3, negative electrode on left arm or shoulder 
A)  positive electrode at V6, negative electrode on right shoulder or arm 
B)  positive electrode at V1, negative electrode on left arm or shoulder 
C)  positive electrode at V2, negative electrode on right shoulder or arm 
D)  positive electrode at V3, negative electrode on left arm or shoulder

Question 5

Which portion of the ECG tracing represents ventricular repolarization?

Accepted Answer

A)  U wave 
B)  QRS complex 
C)  ST interval 
D)  T wave 
A)  U wave 
B)  QRS complex 
C)  ST interval 
D)  T wave

Question 6

Of the limb leads, which leads are considered to be the inferior leads?

Accepted Answer

A)  Leads II, III, and aVF 
B)  Leads I, II, III and aVF 
C)  Leads II, III, and aVR 
D)  Leads I, II, III and aVR 
A)  Leads II, III, and aVF 
B)  Leads I, II, III and aVF 
C)  Leads II, III, and aVR 
D)  Leads I, II, III and aVR

Question 7

When electrical impulses travel away from the positive electrode, what would be recorded on the ECG tracing?

Accepted Answer

A)  negative deflection 
B)  straight line 
C)  positive deflection 
D)  equiphasic deflection 
A)  negative deflection 
B)  straight line 
C)  positive deflection 
D)  equiphasic deflection

Question 8

What does a flat ST segment usually indicate?

Accepted Answer

A)  disconnected electrode 
B)  hyperkalemia 
C)  ischemia 
D)  normal ECG tracing 
A)  disconnected electrode 
B)  hyperkalemia 
C)  ischemia 
D)  normal ECG tracing

Question 9

Which portion of the ECG tracing represents the time between ventricular depolarization and repolarization?

Accepted Answer

A)  PR interval 
B)  ST segment 
C)  T wave 
D)  QRS complex 
A)  PR interval 
B)  ST segment 
C)  T wave 
D)  QRS complex

Which of the following are considered to be precordial leads? I. Lead I, II, III II. AVR, aVL, aVF III. V1, V2, V3, V4, V5, V6

What are the normal ECG configurations composed of? I. waves II. Complexes III. Segments IV. Intervals

When electrical impulses travel toward the positive electrode, what waveform would be recorded on the ECG tracing?

What is the correct electrode placement for the modified chest lead?

Which portion of the ECG tracing represents ventricular repolarization?

Of the limb leads, which leads are considered to be the inferior leads?

When electrical impulses travel away from the positive electrode, what would be recorded on the ECG tracing?

What does a flat ST segment usually indicate?

Which portion of the ECG tracing represents the time between ventricular depolarization and repolarization?

The Anatomy and Physiology of the Respitory System

Ventilation

Pulmonary Function Measurements

The Diffusion of Pulmonary Gases

The Anatomy and Physiology of the Circulatory System

Oxygen and Carbon Dioxide Transport

Acid-Base Balance and Regulation

Ventilation-Perfusion Relationships

Control of Ventilation

Fetal Development and the Cardiopulmonary System

Aging and the Cardiopulmonary System

Electrophysiology of the Heart

Ecg Interpretation

Hemodynamic Measurements

Renal Failure and Its Effects on the Cardiopulmonary System

Sleep Physiology and Its Relationship to the Cardiopulmonary System

Exercise and Its Effects on the Cardiopulmonary System

High Altitude and Its Effects on the Cardiopulmonary System

High Pressure Environments and Their Effects on the Cardiopulmonary System

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Exam 13: The Standard 12-Ecg Lead System

Which of the following are considered to be precordial leads? I. Lead I, II, III II. AVR, aVL, aVF III. V1, V2, V3, V4, V5, V6

What are the normal ECG configurations composed of? I. waves II. Complexes III. Segments IV. Intervals

When electrical impulses travel toward the positive electrode, what waveform would be recorded on the ECG tracing?

What is the correct electrode placement for the modified chest lead?

Which portion of the ECG tracing represents ventricular repolarization?

Of the limb leads, which leads are considered to be the inferior leads?

When electrical impulses travel away from the positive electrode, what would be recorded on the ECG tracing?

What does a flat ST segment usually indicate?

Which portion of the ECG tracing represents the time between ventricular depolarization and repolarization?

The Anatomy and Physiology of the Respitory System

Ventilation

Pulmonary Function Measurements

The Diffusion of Pulmonary Gases

The Anatomy and Physiology of the Circulatory System

Oxygen and Carbon Dioxide Transport

Acid-Base Balance and Regulation

Ventilation-Perfusion Relationships

Control of Ventilation

Fetal Development and the Cardiopulmonary System

Aging and the Cardiopulmonary System

Electrophysiology of the Heart

Ecg Interpretation

Hemodynamic Measurements

Renal Failure and Its Effects on the Cardiopulmonary System

Sleep Physiology and Its Relationship to the Cardiopulmonary System

Exercise and Its Effects on the Cardiopulmonary System

High Altitude and Its Effects on the Cardiopulmonary System

High Pressure Environments and Their Effects on the Cardiopulmonary System

Filters