Question 1

The first letter of the pacemaker identification code represents _____.

Accepted Answer

A)  the chamber sensed 
B)  the chamber paced 
C)  the mode of response 
D)  programmable functions B

Question 2

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

Accepted Answer

A dual-chamber pacemaker can also be called a DDD pacemaker, indicating that both the atrium and ventricle are paced (D), both chambers are sensed (D), and the pacemaker has both a triggered and an inhibited mode of response (D). When spontaneous atrial depolarization does not occur within a preset interval, the atrial pulse generator fires and stimulates atrial depolarization at a preset rate. The pacemaker is programmed to wait, simulating the normal delay in conduction through the AV node (the PR interval). The "artificial" or "electronic" PR interval is referred to as an "AV interval." If spontaneous ventricular depolarization does not occur within a preset interval, the pacemaker fires and stimulates ventricular depolarization at a preset rate.

Question 3

Identify the following rhythm: _________________________

Accepted Answer

Ventricular paced rhythm with 100% capture

Question 4

Explain the difference between electrical capture and mechanical capture.

Accepted Answer

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

Question 5

Identify the following rhythm: _________________________

Accepted Answer

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

Question 6

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

Accepted Answer

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

Question 7

Describe what is meant by the term overdrive pacing.

Accepted Answer

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

Question 8

The second letter of the pacemaker identification code represents _____.

Accepted Answer

A)  programmable functions 
B)  the chamber sensed 
C)  the mode of response 
D)  the chamber paced

Question 9

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

Accepted Answer

The answer of Completion
-A(n) __________ is a vertical line on...

Question 10

Capture is _____.

Accepted Answer

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

Question 11

Explain the benefits of a dual-chamber pacemaker.

Accepted Answer

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

Question 12

Identify the following rhythm: _________________________

Accepted Answer

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

Question 13

In pacing, threshold refers to _____.

Accepted Answer

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

Question 14

Identify the following rhythm: _________________________

Accepted Answer

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

Question 15

In pacing, rate modulation refers to _____.

Accepted Answer

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.

Question 16

In pacing, sensitivity refers to _____.

Accepted Answer

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

Question 17

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...

Exam 8: Pacemaker Rhythms

The first letter of the pacemaker identification code represents _____.

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

Identify the following rhythm: _________________________

Explain the difference between electrical capture and mechanical capture.

Identify the following rhythm: _________________________

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

Describe what is meant by the term overdrive pacing.

The second letter of the pacemaker identification code represents _____.

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

Capture is _____.

Explain the benefits of a dual-chamber pacemaker.

Identify the following rhythm: _________________________

In pacing, threshold refers to _____.

Identify the following rhythm: _________________________

In pacing, rate modulation refers to _____.

In pacing, sensitivity refers to _____.

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