Question 1

The 48-year old male who is short of breath has a heart rate of 130 BPM. This heart rate is:

Accepted Answer

A)  tachycardic. 
B)  normal. 
C)  bradycardic. 
D)  irregular 
A)  tachycardic. 
B)  normal. 
C)  bradycardic. 
D)  irregular A

Question 2

The QT interval:

Accepted Answer

A)  is the distance from the onset of the QRS complex until the end of the T wave. 
B)  measures the duration of ventricular depolarization. 
C)  is typically the same irrespective of the age, sex, or heart rate. 
D)  normally has a duration of 0.20 to 0.36 second. 
A)  is the distance from the onset of the QRS complex until the end of the T wave. 
B)  measures the duration of ventricular depolarization. 
C)  is typically the same irrespective of the age, sex, or heart rate. 
D)  normally has a duration of 0.20 to 0.36 second. A

Question 3

An ECG printout is also called a dynamic tracing and represents what occurred in the heart at the time the tracing was recorded.

Accepted Answer

A) True 
 B)False  False

Question 4

The T wave:

Accepted Answer

A)  is larger than the P wave and completely symmetrical. 
B)  has a peak which is closer to the end than the beginning. 
C)  is normally 15-20 mm in height in the limb leads. 
D)  is normally oriented in the same direction as the preceding QRS complex. 
A)  is larger than the P wave and completely symmetrical. 
B)  has a peak which is closer to the end than the beginning. 
C)  is normally 15-20 mm in height in the limb leads. 
D)  is normally oriented in the same direction as the preceding QRS complex.

Question 5

The QRS complex:

Accepted Answer

A)  is larger in appearance than the P wave and consists of three parts. 
B)  is generally wide and sharply pointed. 
C)  normally has a duration of 0.12 to 0.20 second and an amplitude of 5 to 30 mm. 
D)  represents movement of the electrical impulse through the atria causing their contraction. 
A)  is larger in appearance than the P wave and consists of three parts. 
B)  is generally wide and sharply pointed. 
C)  normally has a duration of 0.12 to 0.20 second and an amplitude of 5 to 30 mm. 
D)  represents movement of the electrical impulse through the atria causing their contraction.

Question 6

The PR interval:

Accepted Answer

A)  is normally 0.12 to 0.20 seconds in duration. 
B)  represents ventricular depolarization. 
C)  is the distance from the beginning of the P wave to the beginning of the S wave. 
D)  extends across 5 to 10 small squares. 
A)  is normally 0.12 to 0.20 seconds in duration. 
B)  represents ventricular depolarization. 
C)  is the distance from the beginning of the P wave to the beginning of the S wave. 
D)  extends across 5 to 10 small squares.

Question 7

The Nine-Step Process is used to assess ECG tracings. It includes all of the following EXCEPT:

Accepted Answer

A)  determining the heart rate. 
B)  determining the regularity. 
C)  checking for a pulse. 
D)  examining the P waves. 
A)  determining the heart rate. 
B)  determining the regularity. 
C)  checking for a pulse. 
D)  examining the P waves.

Question 8

The first five steps of the Nine-Step Process are better suited for identifying cardiac conditions.

Accepted Answer

A) True 
 B)False

Question 9

A quick analysis of an ECG can be done by looking at the tracing as it moves from left to right horizontally across ECG oscilloscope.

Accepted Answer

A) True 
 B)False

Question 10

The flat line seen on the ECG tracing:

Accepted Answer

A)  is called artifact. 
B)  occurs any time electrical activity is occurring in the upper chambers of the heart. 
C)  can be used as a baseline or reference point to identify the changing electrical movement. 
D)  represents the movement of electrical activity away from a positive electrode. 
A)  is called artifact. 
B)  occurs any time electrical activity is occurring in the upper chambers of the heart. 
C)  can be used as a baseline or reference point to identify the changing electrical movement. 
D)  represents the movement of electrical activity away from a positive electrode.

Question 11

The 48-year old male who is short of breath has R-R intervals that are occasionally different. He has a/an _______ rhythm.

Accepted Answer

A)  irregular 
B)  regular 
C)  normal 
D)  supraventricular 
A)  irregular 
B)  regular 
C)  normal 
D)  supraventricular

Question 12

To analyze a 12-lead ECG tracing, move from left to right horizontally along the first row, then proceed to the second row and then the third row using the same technique.

Accepted Answer

A) True 
 B)False

Question 13

The first step of analyzing the ECG tracing is to:

Accepted Answer

A)  examine the QRS complexes. 
B)  examine the T waves. 
C)  identify the regularity. 
D)  determine the heart rate. 
A)  examine the QRS complexes. 
B)  examine the T waves. 
C)  identify the regularity. 
D)  determine the heart rate.

Question 14

Which of the following are characteristics of the normal ECG?

Accepted Answer

A)  Waveforms and intervals that appear at regular intervals at a rate of 60 to 90 beats per minute (in the adult). 
B)  Upright and slightly asymmetrical P waves, each followed by a QRS complex of normal upright contour, duration, and configuration 
C)  A PR interval (PRI) with a duration of 0.12 to 0.24 seconds that precedes each QRS complex. 
D)  A flat ST segment followed by an inverted, symmetrical T wave. 
A)  Waveforms and intervals that appear at regular intervals at a rate of 60 to 90 beats per minute (in the adult). 
B)  Upright and slightly asymmetrical P waves, each followed by a QRS complex of normal upright contour, duration, and configuration 
C)  A PR interval (PRI) with a duration of 0.12 to 0.24 seconds that precedes each QRS complex. 
D)  A flat ST segment followed by an inverted, symmetrical T wave.

Question 15

You are in the emergency department and hear one of the ED physicians referring to the morphology of the P waves in an ECG tracing. When she says this, she means the ______ of the P wave

Accepted Answer

A)  duration 
B)  appearance 
C)  amplitude 
D)  origin 
A)  duration 
B)  appearance 
C)  amplitude 
D)  origin

Question 16

Repolarization of the ventricles is represented by the:

Accepted Answer

A)  P wave. 
B)  QRS complex. 
C)  T wave. 
D)  R wave. 
A)  P wave. 
B)  QRS complex. 
C)  T wave. 
D)  R wave.

Question 17

The pause that follows the QRS complex is referred to as the:

Accepted Answer

A)  QT interval. 
B)  PR interval. 
C)  U wave. 
D)  ST segment. 
A)  QT interval. 
B)  PR interval. 
C)  U wave. 
D)  ST segment.

Question 18

Each dysrhythmia and cardiac condition has characteristics that are unique to it, making it identifiable to anyone who knows for what to look for.

Accepted Answer

A) True 
 B)False

Question 19

To analyze an ECG tracing you should:

Accepted Answer

A)  approach it in a logical and systematic manner. 
B)  examine the P waves and QRS complexes first. 
C)  first view it on the oscilloscope and then print out a six second tracing. 
D)  scan the tracing from right to left. 
A)  approach it in a logical and systematic manner. 
B)  examine the P waves and QRS complexes first. 
C)  first view it on the oscilloscope and then print out a six second tracing. 
D)  scan the tracing from right to left.

Question 20

The ST segment is seen as a:

Accepted Answer

A)  small, asymmetrical upright waveform. 
B)  large, triangular-shaped waveform. 
C)  flat line. 
D)  large, asymmetrical upright waveform. 
A)  small, asymmetrical upright waveform. 
B)  large, triangular-shaped waveform. 
C)  flat line. 
D)  large, asymmetrical upright waveform.

Exam 3: Analyzing the Electrocardiogram

The 48-year old male who is short of breath has a heart rate of 130 BPM. This heart rate is:

The QT interval:

An ECG printout is also called a dynamic tracing and represents what occurred in the heart at the time the tracing was recorded.

The T wave:

The QRS complex:

The PR interval:

The Nine-Step Process is used to assess ECG tracings. It includes all of the following EXCEPT:

The first five steps of the Nine-Step Process are better suited for identifying cardiac conditions.

A quick analysis of an ECG can be done by looking at the tracing as it moves from left to right horizontally across ECG oscilloscope.

The flat line seen on the ECG tracing:

The 48-year old male who is short of breath has R-R intervals that are occasionally different. He has a/an _______ rhythm.

To analyze a 12-lead ECG tracing, move from left to right horizontally along the first row, then proceed to the second row and then the third row using the same technique.

The first step of analyzing the ECG tracing is to:

Which of the following are characteristics of the normal ECG?

You are in the emergency department and hear one of the ED physicians referring to the morphology of the P waves in an ECG tracing. When she says this, she means the ______ of the P wave

Repolarization of the ventricles is represented by the:

The pause that follows the QRS complex is referred to as the:

Each dysrhythmia and cardiac condition has characteristics that are unique to it, making it identifiable to anyone who knows for what to look for.

To analyze an ECG tracing you should:

The ST segment is seen as a:

Anatomy and Electrophysiology of the Heart

The Electrocardiogram

Heart Rate

Regularity

P-Waves

QRS Complexes

PR Intervals

ST Segments, T-Waves, QT Intervals, and U-Waves

Overview of Dysrhythmias

Origin and Clinical Aspects of Sinus Node Dysrhythmias

Origin and Clinical Aspects of Atrial Dysrhythmias

Origin and Clinical Aspects of Junctional Dysrhythmias

Origin and Clinical Aspects of Ventricular Dysrhythmias

Origin and Clinical Aspects of AV Heart Blocks

Pacemakers and Implanted Cardioverter-Defibrillators

12 Lead ECGS

Atrial Enlargement and Ventricular Hypertrophy

Bundle Branch Block

Myocardial Ischemia and Infarction

Other Cardiac Conditions and the ECG

Putting It All Together

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