Question 1

The U wave:

Accepted Answer

A)  deflects opposite of its associated QRS complex 
B)  is always present 
C)  follows the T wave 
D)  is larger than the T wave 
A)  deflects opposite of its associated QRS complex 
B)  is always present 
C)  follows the T wave 
D)  is larger than the T wave

Question 2

The T wave is normal oriented in the ________ direction as the preceding QRS complex.

Accepted Answer

A)  opposite 
B)  same 
A)  opposite 
B)  same

Question 3

To measure the T wave, identify its starting and ending point, then move to the center of the waveform. Next, count the number of small boxes between the isoelectric line and the top of the waveform.

Accepted Answer

A) True 
 B)False

Question 4

T waves are normally positive in leads:

Accepted Answer

A)  I, II, and V2 to V6 
B)  aVR, aVF, aVL 
C)  I, II, and aVR 
D)  aVR, V1 and V2 
A)  I, II, and V2 to V6 
B)  aVR, aVF, aVL 
C)  I, II, and aVR 
D)  aVR, V1 and V2

Question 5

The ___________ represents the end of ventricular depolarization and beginning of ventricular repolarization.

Accepted Answer

A)  T wave 
B)  U wave 
C)  QT interval 
D)  ST segment 
A)  T wave 
B)  U wave 
C)  QT interval 
D)  ST segment

Question 6

Tall or peaked T waves, also known as tented T waves, are seen in:

Accepted Answer

A)  subarachnoid hemorrhage. 
B)  myocardial ischemia and hyperkalemia. 
C)  impulses that arise from the ventricles. 
D)  Digitalis toxicity and beta blocker use. 
A)  subarachnoid hemorrhage. 
B)  myocardial ischemia and hyperkalemia. 
C)  impulses that arise from the ventricles. 
D)  Digitalis toxicity and beta blocker use.

Question 7

An ST segment is considered elevated if it is:

Accepted Answer

A)  0.5 to 1.0 above the baseline. 
B)  more than 1.0 mm above the baseline. 
C)  more than 1.0 mm below the baseline. 
D)  more than 5.0 mm above the baseline. 
A)  0.5 to 1.0 above the baseline. 
B)  more than 1.0 mm above the baseline. 
C)  more than 1.0 mm below the baseline. 
D)  more than 5.0 mm above the baseline.

Question 8

The height of the T wave is normally no greater than ________ mm in the limb leads.

Accepted Answer

A)  2 
B)  5 
C)  10 
D)  15 
A)  2 
B)  5 
C)  10 
D)  15

Question 9

ST segment elevation suggests:

Accepted Answer

A)  Myocardial ischemia 
B)  Myocardial injury 
C)  Pericarditis 
D)  b & c 
A)  Myocardial ischemia 
B)  Myocardial injury 
C)  Pericarditis 
D)  b & c

The U wave:

The T wave is normal oriented in the ________ direction as the preceding QRS complex.

To measure the T wave, identify its starting and ending point, then move to the center of the waveform. Next, count the number of small boxes between the isoelectric line and the top of the waveform.

T waves are normally positive in leads:

The ___________ represents the end of ventricular depolarization and beginning of ventricular repolarization.

Tall or peaked T waves, also known as tented T waves, are seen in:

An ST segment is considered elevated if it is:

The height of the T wave is normally no greater than ________ mm in the limb leads.

ST segment elevation suggests:

Anatomy and Electrophysiology of the Heart

The Electrocardiogram

Analyzing the Electrocardiogram

Heart Rate

Regularity

P-Waves

QRS Complexes

PR Intervals

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

Filters

Exam 9: ST Segments, T-Waves, QT Intervals, and U-Waves

The U wave:

The T wave is normal oriented in the ________ direction as the preceding QRS complex.

To measure the T wave, identify its starting and ending point, then move to the center of the waveform. Next, count the number of small boxes between the isoelectric line and the top of the waveform.

T waves are normally positive in leads:

The ___________ represents the end of ventricular depolarization and beginning of ventricular repolarization.

Tall or peaked T waves, also known as tented T waves, are seen in:

An ST segment is considered elevated if it is:

The height of the T wave is normally no greater than ________ mm in the limb leads.

ST segment elevation suggests:

Anatomy and Electrophysiology of the Heart

The Electrocardiogram

Analyzing the Electrocardiogram

Heart Rate

Regularity

P-Waves

QRS Complexes

PR Intervals

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

Filters