Question 1

The AV blocks with a constant PR interval are

Accepted Answer

A) first-degree AV block and Wenckebach. 
B) Wenckebach and third-degree AV block. 
C) first-degree AV block and Mobitz II second-degree AV block. 
D) first-degree AV block and third-degree AV block. 
A) first-degree AV block and Wenckebach. 
B) Wenckebach and third-degree AV block. 
C) first-degree AV block and Mobitz II second-degree AV block. 
D) first-degree AV block and third-degree AV block.

Question 2

2:1 AV block can be caused by either

Accepted Answer

A) third-degree AV block or Wenckebach. 
B) Wenckebach or Mobitz II second-degree AV block. 
C) first-degree AV block or Wenckebach. 
D) Mobitz II second-degree AV block or third-degree AV block. 
A) third-degree AV block or Wenckebach. 
B) Wenckebach or Mobitz II second-degree AV block. 
C) first-degree AV block or Wenckebach. 
D) Mobitz II second-degree AV block or third-degree AV block.

Question 3

-The QRS interval in Figure 18 is closest to

Accepted Answer

A) 0.12 seconds. 
B) 0.20 seconds. 
C) 0.32 seconds. 
D) 0.40 seconds. 
A) 0.12 seconds. 
B) 0.20 seconds. 
C) 0.32 seconds. 
D) 0.40 seconds.

Question 4

In Mobitz II second-degree AV block,where do the P waves originate?

Accepted Answer

A) Sinus node 
B) AV node 
C) Atrium 
D) Ventricle 
A) Sinus node 
B) AV node 
C) Atrium 
D) Ventricle

Question 5

First-degree AV block is best treated with a pacemaker.

Accepted Answer

A) True 
 B)False

Question 6

Treatment for first-degree AV block involves

Accepted Answer

A) atropine. 
B) digitalis. 
C) electrical shock to the heart. 
D) removing the cause. 
A) atropine. 
B) digitalis. 
C) electrical shock to the heart. 
D) removing the cause.

Question 7

Mobitz II second-degree AV block involves a block at either the AV node or the ________.

Accepted Answer

The answer of Mobitz II second-degree AV block involves a...

Question 8

In third-degree AV block,if the block is at the AV node

Accepted Answer

A) the QRS will be wide and bizarre. 
B) the P waves will be tall and pointy. 
C) the QRS will be narrow. 
D) there will be no P waves. 
A) the QRS will be wide and bizarre. 
B) the P waves will be tall and pointy. 
C) the QRS will be narrow. 
D) there will be no P waves.

Question 9

Third-degree AV block is also called Wenckebach.

Accepted Answer

A) True 
 B)False

Question 10

The type of AV block characterized by a prolonged PR interval is

Accepted Answer

A) Wenckebach. 
B) Mobitz II second-degree AV block. 
C) third-degree AV block. 
D) first-degree AV block. 
A) Wenckebach. 
B) Mobitz II second-degree AV block. 
C) third-degree AV block. 
D) first-degree AV block.

Question 11

Complete heart block is another name for

Accepted Answer

A) Wenckebach. 
B) Mobitz II second-degree AV block. 
C) third-degree AV block. 
D) first-degree AV block. 
A) Wenckebach. 
B) Mobitz II second-degree AV block. 
C) third-degree AV block. 
D) first-degree AV block.

Question 12

Third-degree AV block usually needs no treatment.

Accepted Answer

A) True 
 B)False

Question 13

Wenckebach usually does not need treatment.

Accepted Answer

A) True 
 B)False

Question 14

Why does atropine not work when the block is at the bundle branches?

Accepted Answer

Atropine works on th

Question 15

-The rhythm in Figure 18 is

Accepted Answer

A) Wenckebach. 
B) Mobitz II second-degree AV block. 
C) third-degree AV block. 
D) junctional bradycardia. 
A) Wenckebach. 
B) Mobitz II second-degree AV block. 
C) third-degree AV block. 
D) junctional bradycardia.

Question 16

Treatment for third-degree AV block usually includes

Accepted Answer

A) digitalis. 
B) lidocaine. 
C) amiodarone. 
D) pacemaker. 
A) digitalis. 
B) lidocaine. 
C) amiodarone. 
D) pacemaker.

Question 17

-Which strip is consistent with sinus rhythm with first-degree AV block?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
A) A 
B) B 
C) C 
D) D

Question 18

-The PR interval in Figure 18

Accepted Answer

A) is constant. 
B) varies. 
C) is about 0.12 seconds. 
D) is about 0.20 seconds. 
A) is constant. 
B) varies. 
C) is about 0.12 seconds. 
D) is about 0.20 seconds.

Question 19

What kind of symptoms does first-degree AV block cause?

Accepted Answer

The answer of What kind of symptoms does first-degree AV...

Question 20

In which kind of AV block do NONE of the sinus impulses reach the ventricles?

Accepted Answer

A) First-degree AV block 
B) Wenckebach 
C) Mobitz II second-degree AV block 
D) Third-degree AV block 
A) First-degree AV block 
B) Wenckebach 
C) Mobitz II second-degree AV block 
D) Third-degree AV block

The AV blocks with a constant PR interval are

2:1 AV block can be caused by either

-The QRS interval in Figure 18 is closest to

In Mobitz II second-degree AV block,where do the P waves originate?

First-degree AV block is best treated with a pacemaker.

Treatment for first-degree AV block involves

Mobitz II second-degree AV block involves a block at either the AV node or the ________.

In third-degree AV block,if the block is at the AV node

Third-degree AV block is also called Wenckebach.

The type of AV block characterized by a prolonged PR interval is

Complete heart block is another name for

Third-degree AV block usually needs no treatment.

Wenckebach usually does not need treatment.

Why does atropine not work when the block is at the bundle branches?

-The rhythm in Figure 18 is

Treatment for third-degree AV block usually includes

-Which strip is consistent with sinus rhythm with first-degree AV block?

-The PR interval in Figure 18

What kind of symptoms does first-degree AV block cause?

In which kind of AV block do NONE of the sinus impulses reach the ventricles?

Cardiac Anatomy and Physiology

Electrophysiology

Lead Morphology and Placement

Technical Aspects of the EKG

Calculating Heart Rate

How to Interpret a Rhythm Strip

Rhythms Originating in the Sinus Node

Rhythms Originating in the Atria

Rhythms Originating in the AV Junction

Rhythms Originating in the Ventricles

How to Interpret a 12-Lead EKG

Myocardial Infarction

Medications and Electrical Therapy

Diagnostic Electrocardiography

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Exam 11: AV Blocks

The AV blocks with a constant PR interval are

2:1 AV block can be caused by either

-The QRS interval in Figure 18 is closest to

In Mobitz II second-degree AV block,where do the P waves originate?

First-degree AV block is best treated with a pacemaker.

Treatment for first-degree AV block involves

Mobitz II second-degree AV block involves a block at either the AV node or the ________.

In third-degree AV block,if the block is at the AV node

Third-degree AV block is also called Wenckebach.

The type of AV block characterized by a prolonged PR interval is

Complete heart block is another name for

Third-degree AV block usually needs no treatment.

Wenckebach usually does not need treatment.

Why does atropine not work when the block is at the bundle branches?

-The rhythm in Figure 18 is

Treatment for third-degree AV block usually includes

-Which strip is consistent with sinus rhythm with first-degree AV block?

-The PR interval in Figure 18

What kind of symptoms does first-degree AV block cause?

In which kind of AV block do NONE of the sinus impulses reach the ventricles?

Cardiac Anatomy and Physiology

Electrophysiology

Lead Morphology and Placement

Technical Aspects of the EKG

Calculating Heart Rate

How to Interpret a Rhythm Strip

Rhythms Originating in the Sinus Node

Rhythms Originating in the Atria

Rhythms Originating in the AV Junction

Rhythms Originating in the Ventricles

How to Interpret a 12-Lead EKG

Myocardial Infarction

Medications and Electrical Therapy

Diagnostic Electrocardiography

Filters