Question 1

Identify the following rhythm: _________________________

Accepted Answer

Ventricular paced rhythm with 100% capture

Question 2

Completion
-A(n) __________ is a vertical line on the ECG that indicates the artificial pacemaker has discharged.

Accepted Answer

pacemaker spike

Question 3

In pacing, rate modulation refers to _____.
A) the ability of a pacemaker to recognize and respond to intrinsic electrical activity
B) the minimum level of electrical current needed to consistently depolarize the myocardium
C) the ability of a pacemaker to increase the pacing rate in response to physical activity or metabolic demand
D) a pacing lead with a single electrical pole at the distal tip of the pacing lead through which the stimulating pulse is delivered.

Accepted Answer

Rate modulation refers to a pacemaker's ability to adapt its rate to meet the body's needs caused by increased physical activity and then increase or decrease the pacing rate accordingly. A pacemaker's rate modulation capability may also be referred to as rate responsiveness or rate adaptation.

Question 4

Identify the following rhythm: _________________________

Accepted Answer

The answer of Identify the following rhythm: _________________________
 ...

Question 5

The first letter of the pacemaker identification code represents _____.
A) the chamber sensed
B) the chamber paced
C) the mode of response
D) programmable functions

Accepted Answer

The first letter of the code identifies the heart chamber (or chambers) paced (stimulated). A pacemaker used to pace only a single chamber is represented by either A (atrial) or V (ventricular). A pacemaker capable of pacing in both chambers is represented by D (dual).

Question 6

Describe what is meant by the term overdrive pacing.

Accepted Answer

The answer of Describe what is meant by the term...

Question 7

In pacing, sensitivity refers to _____.
A) the ability of a pacemaker to recognize and respond to intrinsic electrical activity
B) a pacing lead with a single electrical pole at the distal tip of the pacing lead through which the stimulating pulse is delivered
C) the successful conduction of an artificial pacemaker's impulse through the myocardium, resulting in depolarization
D) the length of time between an atrial sensed or atrial paced event and the delivery of a ventricular pacing stimulus

Accepted Answer

Sensitivity refers to the extent to which an artificial pacemaker recognizes intrinsic cardiac electrical activity.

Question 8

The second letter of the pacemaker identification code represents _____.
A) programmable functions
B) the chamber sensed
C) the mode of response
D) the chamber paced

Accepted Answer

The second letter of the pacemaker code identifies the chamber of the heart where patient-initiated (i.e., intrinsic) electrical activity is sensed by the pacemaker.

Question 9

In pacing, threshold refers to _____.
A) the ability of a pacemaker to recognize and respond to intrinsic electrical activity
B) the minimum level of electrical current needed to consistently depolarize the myocardium
C) a pacing lead with a single electrical pole at the distal tip of the pacing lead through which the stimulating pulse is delivered
D) the ability of a pacemaker to increase the pacing rate in response to physical activity or metabolic demand

Accepted Answer

Threshold refers to the minimum level of electrical current needed to consistently depolarize the myocardium.

Question 10

Identify the following rhythm: _________________________

Accepted Answer

The answer of Identify the following rhythm: _________________________
 ...

Question 11

Capture is _____.
A) the electrical stimulus delivered by a pacemaker's pulse generator
B) a vertical line on the ECG that indicates the pacemaker has discharged
C) the time measured between a sensed cardiac event and the next pacemaker output
D) the ability of a pacing stimulus to successfully depolarize the cardiac chamber that is being paced

Accepted Answer

Capture is the successful conduction of an artificial pacemaker's impulse through the myocardium, resulting in depolarization.

Question 12

Explain the difference between electrical capture and mechanical capture.

Accepted Answer

The answer of Explain the difference between electrical capture and...

Question 13

Explain the benefits of a dual-chamber pacemaker.

Accepted Answer

The answer of Explain the benefits of a dual-chamber pacemaker....

Question 14

Identify the following rhythm: _________________________

Accepted Answer

The answer of Identify the following rhythm: _________________________
 ...

Question 15

Your patient has a DDD pacemaker. Briefly explain the meaning of each of these letters.

Accepted Answer

The answer of Your patient has a DDD pacemaker. Briefly...

Question 16

Your patient has a VVI pacemaker. Briefly explain the meaning of each of these letters.

Accepted Answer

The answer of Your patient has a VVI pacemaker. Briefly...

Question 17

Completion
-A demand pacemaker is also known as a _____ pacemaker.

Accepted Answer

The answer of Completion
-A demand pacemaker is also known as...

Quiz 8: Pacemaker Rhythms

Identify the following rhythm: _________________________

Completion -A(n) __________ is a vertical line on the ECG that indicates the artificial pacemaker has discharged.

In pacing, rate modulation refers to _____.

Identify the following rhythm: _________________________

The first letter of the pacemaker identification code represents _____.

Describe what is meant by the term overdrive pacing.

In pacing, sensitivity refers to _____.

The second letter of the pacemaker identification code represents _____.

In pacing, threshold refers to _____.

Identify the following rhythm: _________________________

Capture is _____.

Explain the difference between electrical capture and mechanical capture.

Explain the benefits of a dual-chamber pacemaker.

Identify the following rhythm: _________________________

Your patient has a DDD pacemaker. Briefly explain the meaning of each of these letters.

Your patient has a VVI pacemaker. Briefly explain the meaning of each of these letters.

Completion -A demand pacemaker is also known as a _____ pacemaker.