Question 1

When atrial fibrillation occurs atrial depolarization does not occur.How is this identified on the ECG tracing?

Accepted Answer

A)  The are multiple 'P' waves to each 'QRS' complex on the ECG tracing 
B)  The 'P' is inverted in lead 2 
C)  The 'QRS' complex is irregularly spaced 
D)  There is no 'P' wave on the ECG tracing 
A)  The are multiple 'P' waves to each 'QRS' complex on the ECG tracing 
B)  The 'P' is inverted in lead 2 
C)  The 'QRS' complex is irregularly spaced 
D)  There is no 'P' wave on the ECG tracing D

Question 2

Why are augmented leads used in the ECG tracing?

Accepted Answer

A)  They weaken the strong signals from the limb leads 
B)  They amplify the weak signal more than is needed for the leads to generate a useful tracing 
C)  They depolarize the limb leads so that there is a unidirectional polarity 
D)  They can determine the axes of the heart 
A)  They weaken the strong signals from the limb leads 
B)  They amplify the weak signal more than is needed for the leads to generate a useful tracing 
C)  They depolarize the limb leads so that there is a unidirectional polarity 
D)  They can determine the axes of the heart B

Question 3

What lead is placed 5th intercostal space,mid-axillary line?

Accepted Answer

A)  V6 
B)  V5 
C)  V4 
D)  V3 
A)  V6 
B)  V5 
C)  V4 
D)  V3 A

Question 4

What is the total absence of any cardiac electrical activity called?

Accepted Answer

A)  Ventricular tachycardia 
B)  Ventricular fibrillation 
C)  Ventricular asystole 
D)  Premature ventricular contractions 
A)  Ventricular tachycardia 
B)  Ventricular fibrillation 
C)  Ventricular asystole 
D)  Premature ventricular contractions

Question 5

A patient has a normal 'P-R' interval,followed by a normal 'QRS' complex,and then a 'P' wave follows the 'QRS' complex.This normal ECG pattern occurs at a rate of 46/minute.What is this ECG pattern called?

Accepted Answer

A)  First-degree heart block 
B)  Normal sinus rhythm 
C)  Sinus bradycardia 
D)  Third degree heart block 
A)  First-degree heart block 
B)  Normal sinus rhythm 
C)  Sinus bradycardia 
D)  Third degree heart block

Question 6

What is located by palpating the patient's sternal angle?

Accepted Answer

A)  Fourth intercostal space 
B)  The xiphoid process 
C)  Second intercostal space 
D)  Mid clavicular line 
A)  Fourth intercostal space 
B)  The xiphoid process 
C)  Second intercostal space 
D)  Mid clavicular line

Question 7

What lead(s)is (are)placed at the fifth intercostal space,mid-clavicular line?

Accepted Answer

A)  V1 and V2 
B)  V3 
C)  V3. 
D)  V4 
A)  V1 and V2 
B)  V3 
C)  V3. 
D)  V4

Question 8

Leads I,II,and III and the augmented leads are _______ containing both a positive and negative electrode whereas the precordial leads are _________ and are helpful in the diagnosis of a myocardial infarction.

Accepted Answer

A)  bipolar; unipolar 
B)  unipolar; bipolar 
C)  tripolar; bipolar 
D)  synchronized; asynchronized 
A)  bipolar; unipolar 
B)  unipolar; bipolar 
C)  tripolar; bipolar 
D)  synchronized; asynchronized

Question 9

Which of the following waves in an ECG tracing represents ventricular repolarization?

Accepted Answer

A)  'P' wave 
B)  'QRS' complex 
C)  'T' wave 
D)  'U' wave 
A)  'P' wave 
B)  'QRS' complex 
C)  'T' wave 
D)  'U' wave

Question 10

Which lead(s)is (are)placed at the fourth intercostal space adjacent to the sternum?

Accepted Answer

A)  V1 
B)  V2 
C)  V3 
D)  V1 and V2 
A)  V1 
B)  V2 
C)  V3 
D)  V1 and V2

Question 11

A female patient comes to the emergency department complaining of chest pain.She is from a very conservative culture and objects to a male performing her EKG.How should the male practitioner approach this problem since no female is available to do the EKG?

Accepted Answer

There should be a complete explanation s

Question 12

During depolarization and repolarization,two ions are exchanged for these processes to occur.What two ions are involved in this process?
I.Sodium
II.Potassium
III.Chloride
IV.Bicarbonate

Accepted Answer

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

Question 13

Which of the following is the heart's pacemaker?

Accepted Answer

A)  Right and left bundle branches 
B)  Vagus nerve 
C)  AV node 
D)  SA node 
A)  Right and left bundle branches 
B)  Vagus nerve 
C)  AV node 
D)  SA node

Question 14

An extremely obese patient is to ordered to have an EKG.What problems could be encountered and how should they be approached?

Accepted Answer

There should be a complete explanation s

Question 15

Which of the following waves in an ECG tracing represents ventricular depolarization?

Accepted Answer

A)  'P' wave 
B)  'QRS' complex 
C)  'T' wave 
D)  'U' wave 
A)  'P' wave 
B)  'QRS' complex 
C)  'T' wave 
D)  'U' wave

Question 16

The patient must always be placed _________ for an ECG.

Accepted Answer

A)  in semi-fowler's position 
B)  in a chair 
C)  prone 
D)  supine 
A)  in semi-fowler's position 
B)  in a chair 
C)  prone 
D)  supine

Question 17

When a stimulus only causes a small portion of the atria to contract in an unorganized pattern,then ____________ occurs.

Accepted Answer

A)  atrial fibrillation 
B)  ventricular fibrillation 
C)  a normal sinus rhythm 
D)  a sinus tachycardia 
A)  atrial fibrillation 
B)  ventricular fibrillation 
C)  a normal sinus rhythm 
D)  a sinus tachycardia

Question 18

What lead is placed at the 5th intercostal space,anterior axillary line?

Accepted Answer

A)  V3 
B)  V4 
C)  V5 
D)  V6 
A)  V3 
B)  V4 
C)  V5 
D)  V6

Question 19

What is caused by poor electrical contact between the patient and the electrodes placed on the patient to record the ECG?

Accepted Answer

A)  Patient motion 
B)  Wandering baseline 
C)  60 Hz artifact 
D)  Atrial fibrillation 
A)  Patient motion 
B)  Wandering baseline 
C)  60 Hz artifact 
D)  Atrial fibrillation

Question 20

What happens to the heart's atria when the ventricles contract?

Accepted Answer

A)  They pump blood to the ventricles 
B)  They contract 
C)  They depolarize 
D)  They repolarize 
A)  They pump blood to the ventricles 
B)  They contract 
C)  They depolarize 
D)  They repolarize

Exam 6: Electrocardiography

When atrial fibrillation occurs atrial depolarization does not occur.How is this identified on the ECG tracing?

Why are augmented leads used in the ECG tracing?

What lead is placed 5th intercostal space,mid-axillary line?

What is the total absence of any cardiac electrical activity called?

A patient has a normal 'P-R' interval,followed by a normal 'QRS' complex,and then a 'P' wave follows the 'QRS' complex.This normal ECG pattern occurs at a rate of 46/minute.What is this ECG pattern called?

What is located by palpating the patient's sternal angle?

What lead(s)is (are)placed at the fifth intercostal space,mid-clavicular line?

Leads I,II,and III and the augmented leads are _______ containing both a positive and negative electrode whereas the precordial leads are _________ and are helpful in the diagnosis of a myocardial infarction.

Which of the following waves in an ECG tracing represents ventricular repolarization?

Which lead(s)is (are)placed at the fourth intercostal space adjacent to the sternum?

A female patient comes to the emergency department complaining of chest pain.She is from a very conservative culture and objects to a male performing her EKG.How should the male practitioner approach this problem since no female is available to do the EKG?

During depolarization and repolarization,two ions are exchanged for these processes to occur.What two ions are involved in this process? I.Sodium II.Potassium III.Chloride IV.Bicarbonate

Which of the following is the heart's pacemaker?

An extremely obese patient is to ordered to have an EKG.What problems could be encountered and how should they be approached?

Which of the following waves in an ECG tracing represents ventricular depolarization?

The patient must always be placed _________ for an ECG.

When a stimulus only causes a small portion of the atria to contract in an unorganized pattern,then ____________ occurs.

What lead is placed at the 5th intercostal space,anterior axillary line?

What is caused by poor electrical contact between the patient and the electrodes placed on the patient to record the ECG?

What happens to the heart's atria when the ventricles contract?

Basics of Asepsis

Basic Patient Assessment: Vital Signs and Breath Sounds

Advanced Patient Assessment: Inspection, Palpation, and Percussion

Radiologic Assessment

Pulmonary Function Testing

Phlebotomy

Arterial Blood Gas Sampling

Hemodynamic Monitoring

Noninvasive Monitoring

Documentation and Goals Assessment

Oxygen Supply Systems

Oxygen Administration

Introduction to Respiratory Care Pharmacology

Humidity and Aerosol Therapy

Bronchial Hygiene Therapy

Hyperinflation Therapy

Bronchoscopy Assisting

Equipment Processing and Surveillance

Emergency Airway Management

Artificial Airway Care

Chest Tubes

Insertion and Maintenance of Intravenous Lines

Noninvasive Positive-Pressure Ventilation

Continuous Mechanical Ventilation

Advanced Modes of Mechanical Ventilation

Wave Form Analysis

Weaning and Discontinuance of Mechanical Ventilation

Neonatal Mechanical Ventilation

Filters

Leads I,II,and III and the augmented leads are _ containing both a positive and negative electrode whereas the precordial leads are ___ and are helpful in the diagnosis of a myocardial infarction.