Chapter 8 Flashcards
In pacing, sensitivity refers to _____.
the ability of a pacemaker to recognize and respond to intrinsic electrical activity
The first letter of the pacemaker identification code represents _____.
the chamber paced
Capture is _____.
the ability of a pacing stimulus to successfully depolarize the cardiac chamber that is being paced
In pacing, rate modulation refers to _____.
the ability of a pacemaker to increase the pacing rate in response to physical activity or metabolic demand
The second letter of the pacemaker identification code represents _____.
the chamber sensed
In pacing, threshold refers to _____.
the minimum level of electrical current needed to consistently depolarize the myocardium
A demand pacemaker is also known as a _____ pacemaker.
synchronous or noncompetitive
A(n) _____ _____ is a vertical line on the ECG that indicates the artificial pacemaker has discharged.
pacemaker spike
