Question 1

Match the following pacemaker components with the function they each perform:
-Sensing amplifier

Accepted Answer

A) Processes the electrical activity of the heart detected by the pacemaker electrodes 
B) Brain of the pacemaker 
C) Provides energy needed to operate pacemaker 
D) Delivers the pacing impulse to the lead wire 
A) Processes the electrical activity of the heart detected by the pacemaker electrodes 
B) Brain of the pacemaker 
C) Provides energy needed to operate pacemaker 
D) Delivers the pacing impulse to the lead wire C

Question 2

Pacemaker-mediated tachycardia can be recognized by

Accepted Answer

A)  the presence of pacemaker spikes that are not followed by P waves or by broad QRS complexes. 
B)  an absence of pacemaker spikes in the presence of a heart rate that is slower than the rate set for the pacemaker. 
C)  ECG pacemaker spikes that fall where they shouldn't. 
D)  a fast heart rate with a pacemaker spike preceding each QRS complex on the EGG. 
A)  the presence of pacemaker spikes that are not followed by P waves or by broad QRS complexes. 
B)  an absence of pacemaker spikes in the presence of a heart rate that is slower than the rate set for the pacemaker. 
C)  ECG pacemaker spikes that fall where they shouldn't. 
D)  a fast heart rate with a pacemaker spike preceding each QRS complex on the EGG. D

Question 3

In this mode, the pacemaker paces and senses in the atrium, the ventricle, or both. On sensing activity in either chamber, the pacemaker inhibits pacing in that chamber. Or, on sensing atrial activity, the pacemaker may trigger ventricular pacing.

Accepted Answer

A)  DVI 
B)  VVI 
C)  VDD 
D)  DDD 
A)  DVI 
B)  VVI 
C)  VDD 
D)  DDD D

Question 4

Artificial pacemakers are:

Accepted Answer

A)  medical devices that deliver electrical impulses to the heart to stimulate a normal heartbeat. 
B)  used to maintain an adequate heart rate when the heart's own pacemaker cannot. 
C)  used when there is a block in the heart's electrical conduction system that slows the heart rate. 
D)  All of these. 
A)  medical devices that deliver electrical impulses to the heart to stimulate a normal heartbeat. 
B)  used to maintain an adequate heart rate when the heart's own pacemaker cannot. 
C)  used when there is a block in the heart's electrical conduction system that slows the heart rate. 
D)  All of these.

Question 5

Some modern implantable devices have both a pacemaker and defibrillator combined into one unit.

Accepted Answer

A) True 
 B)False

Question 6

An implantable defibrillator is a device that:

Accepted Answer

A)  delivers electrical shocks to the heart in the presence of life-threatening ventricular tachycardia or ventricular fibrillation. 
B)  is external to the body and used to provide temporary treatment. 
C)  Is employed during open heart surgery when the surgical procedure causes bradycardia. 
D)  Is used to synchronize the heartbeat of the right and left ventricles. 
A)  delivers electrical shocks to the heart in the presence of life-threatening ventricular tachycardia or ventricular fibrillation. 
B)  is external to the body and used to provide temporary treatment. 
C)  Is employed during open heart surgery when the surgical procedure causes bradycardia. 
D)  Is used to synchronize the heartbeat of the right and left ventricles.

Question 7

A lead wire that is positioned in the ventricle produces a pacing spike and a:

Accepted Answer

A)  broad QRS complex 
B)  wide P wave 
C)  normal looking P wave 
D)  a and b 
A)  broad QRS complex 
B)  wide P wave 
C)  normal looking P wave 
D)  a and b

Question 8

Pacemakers can be adjusted according to:

Accepted Answer

A)  pacing mode. 
B)  output. 
C)  refractory period. 
D)  All of these 
A)  pacing mode. 
B)  output. 
C)  refractory period. 
D)  All of these

Question 9

Pacemakers can be of tremendous clinical benefit in:

Accepted Answer

A)  symptomatic bradycardia. 
B)  sick sinus syndrome. 
C)  atrial fibrillation with bradycardia. 
D)  All of these 
A)  symptomatic bradycardia. 
B)  sick sinus syndrome. 
C)  atrial fibrillation with bradycardia. 
D)  All of these

Question 10

Match the following pacemaker components with the function they each perform:
-Computer logic

Accepted Answer

A) Processes the electrical activity of the heart detected by the pacemaker electrodes 
B) Brain of the pacemaker 
C) Provides energy needed to operate pacemaker 
D) Delivers the pacing impulse to the lead wire 
A) Processes the electrical activity of the heart detected by the pacemaker electrodes 
B) Brain of the pacemaker 
C) Provides energy needed to operate pacemaker 
D) Delivers the pacing impulse to the lead wire

Question 11

With a dual-chamber pacemaker there will be a/an:

Accepted Answer

A)  initial pacing spike followed by a P wave and second pacing spike followed by a broad QRS complex. 
B)  wide P wave and a broad QRS but not pacing spikes 
C)  initial pacing spike followed by a broad P wave and second pacing spike followed by a narrow QRS complex. 
D)  initial pacing spike followed by an inverted P wave and second pacing spike followed by a narrow QRS complex. 
A)  initial pacing spike followed by a P wave and second pacing spike followed by a broad QRS complex. 
B)  wide P wave and a broad QRS but not pacing spikes 
C)  initial pacing spike followed by a broad P wave and second pacing spike followed by a narrow QRS complex. 
D)  initial pacing spike followed by an inverted P wave and second pacing spike followed by a narrow QRS complex.

Question 12

The pacemaker consists of:

Accepted Answer

A)  a generator that consists of a power source, sensing amplifier, computer logic and output circuitry. 
B)  four lead wires that connect the device to the heart and carry the impulse to the myocardium. 
C)  a rechargeable battery. 
D)  a durable plastic casing. 
A)  a generator that consists of a power source, sensing amplifier, computer logic and output circuitry. 
B)  four lead wires that connect the device to the heart and carry the impulse to the myocardium. 
C)  a rechargeable battery. 
D)  a durable plastic casing.

Question 13

Oversensing can be recognized by

Accepted Answer

A)  the presence of pacemaker spikes that are not followed by P waves or by broad QRS complexes. 
B)  an absence of pacemaker spikes in the presence of a heart rate that is slower than the rate set for the pacemaker. 
C)  ECG pacemaker spikes that fall where they shouldn't. 
D)  a tachycardia with a pacemaker spike preceding each QRS complex on the EGG. 
A)  the presence of pacemaker spikes that are not followed by P waves or by broad QRS complexes. 
B)  an absence of pacemaker spikes in the presence of a heart rate that is slower than the rate set for the pacemaker. 
C)  ECG pacemaker spikes that fall where they shouldn't. 
D)  a tachycardia with a pacemaker spike preceding each QRS complex on the EGG.

Question 14

The basic function of pacemakers is to sense for normal heart activity, and if it does not occur, induce action potentials by passing depolarizing currents into a heart chamber, triggering a self-propagating wave of electrical depolarization.

Accepted Answer

A) True 
 B)False

Question 15

A permanent pacemaker is a medical device:

Accepted Answer

A)  in which electrode pads are applied to the surface of the patient's chest. 
B)  in which an electrode is placed in contact with the ventricular epicardium. 
C)  that is external to the body and an electrode is fed through a vein into the right atrium or right ventricle. 
D)  Implanted in a surgically created pocket beneath the skin in the patient's chest just below the clavicle. 
A)  in which electrode pads are applied to the surface of the patient's chest. 
B)  in which an electrode is placed in contact with the ventricular epicardium. 
C)  that is external to the body and an electrode is fed through a vein into the right atrium or right ventricle. 
D)  Implanted in a surgically created pocket beneath the skin in the patient's chest just below the clavicle.

Question 16

The implantable cardioverter-defibrillator is capable of rate discrimination, rhythm discrimination, and morphology discrimination.

Accepted Answer

A) True 
 B)False

Question 17

A lead wire that is positioned in the atria produces a pacing spike and a:

Accepted Answer

A)  wide QRS complex 
B)  wide P wave 
C)  normal looking P wave 
D)  a and b 
A)  wide QRS complex 
B)  wide P wave 
C)  normal looking P wave 
D)  a and b

Question 18

Match the following pacemaker components with the function they each perform:
-Power source

Accepted Answer

A) Processes the electrical activity of the heart detected by the pacemaker electrodes 
B) Brain of the pacemaker 
C) Provides energy needed to operate pacemaker 
D) Delivers the pacing impulse to the lead wire 
A) Processes the electrical activity of the heart detected by the pacemaker electrodes 
B) Brain of the pacemaker 
C) Provides energy needed to operate pacemaker 
D) Delivers the pacing impulse to the lead wire

Question 19

The ECG can be used to identify if a patient's pacemaker is properly working.

Accepted Answer

A) True 
 B)False

Question 20

An implantable cardioverter-defibrillator can be used to treat:

Accepted Answer

A)  bradycardia. 
B)  complete AV heart block. 
C)  ventricular tachycardia and fibrillation. 
D)  All of these 
A)  bradycardia. 
B)  complete AV heart block. 
C)  ventricular tachycardia and fibrillation. 
D)  All of these

Exam 16: Pacemakers and Implanted Cardioverter-Defibrillators

Match the following pacemaker components with the function they each perform: -Sensing amplifier

Pacemaker-mediated tachycardia can be recognized by

In this mode, the pacemaker paces and senses in the atrium, the ventricle, or both. On sensing activity in either chamber, the pacemaker inhibits pacing in that chamber. Or, on sensing atrial activity, the pacemaker may trigger ventricular pacing.

Artificial pacemakers are:

Some modern implantable devices have both a pacemaker and defibrillator combined into one unit.

An implantable defibrillator is a device that:

A lead wire that is positioned in the ventricle produces a pacing spike and a:

Pacemakers can be adjusted according to:

Pacemakers can be of tremendous clinical benefit in:

Match the following pacemaker components with the function they each perform: -Computer logic

With a dual-chamber pacemaker there will be a/an:

The pacemaker consists of:

Oversensing can be recognized by

The basic function of pacemakers is to sense for normal heart activity, and if it does not occur, induce action potentials by passing depolarizing currents into a heart chamber, triggering a self-propagating wave of electrical depolarization.

A permanent pacemaker is a medical device:

The implantable cardioverter-defibrillator is capable of rate discrimination, rhythm discrimination, and morphology discrimination.

A lead wire that is positioned in the atria produces a pacing spike and a:

Match the following pacemaker components with the function they each perform: -Power source

The ECG can be used to identify if a patient's pacemaker is properly working.

An implantable cardioverter-defibrillator can be used to treat:

Anatomy and Electrophysiology of the Heart

The Electrocardiogram

Analyzing the Electrocardiogram

Heart Rate

Regularity

P-Waves

QRS Complexes

PR Intervals

ST Segments, T-Waves, QT Intervals, and U-Waves

Overview of Dysrhythmias

Origin and Clinical Aspects of Sinus Node Dysrhythmias

Origin and Clinical Aspects of Atrial Dysrhythmias

Origin and Clinical Aspects of Junctional Dysrhythmias

Origin and Clinical Aspects of Ventricular Dysrhythmias

Origin and Clinical Aspects of AV Heart Blocks

12 Lead ECGS

Atrial Enlargement and Ventricular Hypertrophy

Bundle Branch Block

Myocardial Ischemia and Infarction

Other Cardiac Conditions and the ECG

Putting It All Together

Filters