NURSING > EXAM > TEST BANK FOR ECGS MADE EASY 6TH EDITION BY BARBARA Chapter 08: Pacemaker Rhythms (All)

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TEST BANK FOR ECGS MADE EASY 6TH EDITION BY BARBARA Chapter 08: Pacemaker Rhythms

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Chapter 08: Pacemaker Rhythms Test Bank MULTIPLE CHOICE 1. 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 ANS: A Sensitivity refers to the extent to which an artificial pacemaker recognizes intrinsic cardiac electrical activity. OBJ: Discuss the terms triggering, inhibition, pacing, capture, electrical capture, mechanical capture, and sensitivity. 2. 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 ANS: B 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). OBJ: N/A 3. 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 ANS: D Capture is the successful conduction of an artificial pacemaker’s impulse through the myocardium, resulting in depolarization. OBJ: Discuss the terms triggering, inhibition, pacing, capture, electrical capture, mechanical capture, and sensitivity. 4. 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. ANS: C 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. OBJ: N/A 5. 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

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TEST BANK FOR ECGS MADE EASY 6TH EDITION BY BARBARA ALL CHAPTERS (BUNDLE)

Table of Contents 1. Anatomy & Physiology 2. Basic Electrophysiology 3. Sinus Mechanisms 4. Atrial Rhythms 5. Junctional Rhythms 6. Ventricular Rhythms 7. Atrioventricular Blocks 8. Pacemaker Rhythms...

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