chapter 11 quiz

Question 1

An EKG rhythm that has no correlation between the P waves and the QRS complexes is:

Select one:

a. first-degree block.
b. second-degree block type I.
c. second-degree block type II.
d. third-degree block.

Answer 1

d. third-degree block.

Question 2

All the parameters with a first-degree block are within normal limits EXCEPT

Select one:

a. heart rate.
b. rhythm.
c. PR interval.
d. QRS interval

Answer 2

c. PR interval

Question 3

Which of the following blocks is most often irregular?

Select one:

a. First degree
b. Second degree type II
c. Third degree
d. All of the above

Answer 3

b. Second degree type II

Question 4

Heart blocks are:

Select one:

a. early ectopic beats that originate outside the SA node.
b. partial delay or complete interruptions in the cardiac conduction pathway between the atria and ventricles.
c. a shifting of the pacemaker site between the SA node, atria, and/or AV junction.
d. the result of accessory conduction pathways between the atria and ventricles.

Answer 4

b. partial delay or complete interruptions in the cardiac conduction pathway between the atria and ventricles.

Question 5

The second-degree block, type II, represents a complete block of:

Select one:

a. one of the bundle branches and a partial block of the other branch.
b. both of the bundle branches and partial block of the bundle of His
c. all of the intranodal pathways and the AV node
d. the AV node as well as a partial block of the SA node.

Answer 5

a. one of the bundle branches and a partial block of the other branch.

Question 6

Second-degree block is also known as:

Select one:

a. Mobitz type 4.
b. Mobitz type 5.
c. Mobitz type 1.
d. Mobitz type 3

Answer 6

c. Mobitz type 1.

Question 7

With second-degree block, type II:

Select one:

a. the P waves are all inverted.
b. a QRS complex follows each P wave.
c. the pacemaker site is in the AV junction.
d. the ventricular rate is less than the atrial rate.

Answer 7

d. the ventricular rate is less than the atrial rate.

Question 8

The PR interval in Mobitz type II is constant, or regular, for every conducted beat

Select one:

a. true
b. false

Answer 8

a. true

Question 9

The other characteristic in second-degree type I block is that the impulse is not conducted and the ________ is dropped.

Select one:

a. QRS
b. PVC
c. ST
d. AED

Answer 9

a. QRS

Question 10

A Mobitz type II may present as the appearance of two P waves per QRS, three P waves per QRS, or four P waves per QRS.

Select one:

a. true
b. false

Answer 10

a. true

Question 11

With a second-degree block, type I, the PR intervals:

Select one:

a. get progressively shorter.
b. get progressively longer.
c. are all the same at 0.20.
d. are all inverted.

Answer 11

b. get progressively longer.

Question 12

AV dissociation is associated with the ________ degree block.

Select one:

a. third-
b. second-
c. first-
d. fourth-

Answer 12

a. third-

Question 13

With first-degree AV block:

Select one:

a. the PR intervals are less than 0.20 seconds.
b. the P waves are inverted
c. the PR intervals are greater than 0.20 seconds.
d. not all the P waves are followed by a QRS.

Answer 13

c. the PR intervals are greater than 0.20 seconds.

Question 14

The second-degree type I heart block is also known as the:

Select one:

a. Beasley phenomenon.
b. His phenomenon.
c. Purkinje phenomenon.
d. Wenckebach phenomenon.

Answer 14

d. Wenckebach phenomenon.

Question 15

The rhythm that occurs when there is an intermittent interruption in the electrical conduction system near or below the AV Junction is:

Select one:

a. first-degree block
b. second-degree block type I.
c. second-degree block type II.
d. third-degree block.

Answer 15

c. second-degree block type II.

Question 16

This rhythm has a complete block at or below the AV node and there is no relationship between the P waves and the QRS complex.

Select one:

a. First degree
b. Second degree type I
c. Second degree type 2
d. Third degree

Answer 16

d. third degree

Question 17

The most usual form of block results from excessive conduction delay in the AV node and is termed:

Select one:

a. first-degree block.
b. second-degree block type I
c. second-degree block type II.
d. third-degree block

Answer 17

a. first-degree block.

Question 18

This rhythm has a PR interval that gets progressively longer until a P wave fails to conduct, resulting in a dropped QRS complex.

Select one:

a. First degree
b. Second degree type I
c. Second degree type II
d. Third degree

Answer 18

b. Second degree type I

Question 19

Wenckebach differs from complete heart block in that complete heart block usually has:

Select one:

a. a faster rate.
b. no QRS.
c. a constant PR interval.
d. a regular R to R interval.

Answer 19

d. a regular R to R interval.

Question 20

This rhythm is not a true block; there is a delay at the AV node, and each impulse is eventually conducted.

Select one:

a. First degree
b. Second degree type I
c. Second degree type II
d. Third degree

Answer 20

a. First degree