Question 1

Identify the following rhythm: _________________________

Accepted Answer

Ventricular paced rhythm with 100% capture

Question 2

Identify the following rhythm: _________________________

Accepted Answer

Normal functioning dual-chamber pacemaker at 80 pulses/min

Question 3

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 4

Identify the following rhythm: _________________________

Accepted Answer

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

Question 5

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 6

Identify the following rhythm: _________________________

Accepted Answer

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

Question 7

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 explain...

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

Explain the difference between electrical capture and mechanical capture.

Accepted Answer

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

Question 10

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 11

A demand pacemaker is also known as a _____ pacemaker.

Accepted Answer

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

Question 12

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

Accepted Answer

The answer of A(n)_____ _____ is a vertical line on...

Question 13

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 explain...

Question 14

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 15

Explain the benefits of a dual-chamber pacemaker.

Accepted Answer

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

Question 16

Describe what is meant by the term overdrive pacing.

Accepted Answer

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

Question 17

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.

Quiz 8: Pacemaker Rhythms

Identify the following rhythm: _________________________

Identify the following rhythm: _________________________

The first letter of the pacemaker identification code represents _____.

Identify the following rhythm: _________________________

In pacing,threshold refers to _____.

Identify the following rhythm: _________________________

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

The second letter of the pacemaker identification code represents _____.

Explain the difference between electrical capture and mechanical capture.

In pacing,sensitivity refers to _____.

A demand pacemaker is also known as a _____ pacemaker.

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

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

In pacing,rate modulation refers to _____.

Explain the benefits of a dual-chamber pacemaker.

Describe what is meant by the term overdrive pacing.

Capture is _____.