Basic Arrhythmias 8th Edition By Gail Walraven Test Bank, Questions and Answers - All Chapters

Basic Arrhythmias, 8e (Walraven)
Chapter 1 Electrophysiology

1) The inherent rate of the SA node is ________ bpm.
A) 30-60
B) 40-60
C) 60-100
D) 100-120
Answer: C
Page Ref: 6
Learning Obj.: 1.3




S
2) The inherent rate of the AV junction is ________ bpm.
A) 20-40




R
B) 40-60
C) 60-100




VE
D) 100-120
Answer: B
Page Ref: 6
Learning Obj.: 1.3

3) The inherent rate of the ventricle is ________ bpm.
IE
H
A) 20-40
B) 40-60
AC

C) 60-100
D) 100-120
Answer: A
Page Ref: 6
M



Learning Obj.: 1.3
EA




4) The built-in rate of each of the three major areas of the conduction system is referred to as the
________ rate.
A) fast
B) heart
R




C) escape
D) inherent
D




Answer: D
Page Ref: 6
Learning Obj.: 1.3




1
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,5) What term is used to refer to the process of electrical discharge and the flow of electrical
activity?
A) Repolarization
B) Depolarization
C) Polarization
D) Polarized
Answer: B
Page Ref: 4
Learning Obj.: 1.2

6) If polarizing is considered the ready state, then ________ would be considered the recovery
state.




S
A) discharge
B) polarization




R
C) repolarization
D) depolarization




VE
Answer: C
Page Ref: 4
Learning Obj.: 1.2

IE
7) After leaving the area of the AV node, impulses go through the ________ to reach the right
and left bundle branches.
H
A) Purkinje fibers
B) Bundle of His
AC

C) AV junction
D) SA node
Answer: B
Page Ref: 6
M



Learning Obj.: 1.3

8) Part of the parasympathetic branch of the autonomic nervous system is the ________ nerve.
EA




A) vagus
B) coronary
C) aortic
R




D) pericardial
Answer: A
D




Page Ref: 10
Learning Obj.: 1.4




2
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,9) When stimulated, the ________ branch of the nervous system increases heart rate, AV
conduction, and irritability.
A) parasympathetic
B) sympathetic
C) pacemaker
D) inherent
Answer: B
Page Ref: 9
Learning Obj.: 1.4

10) Which cardiac cells are responsible for initiating and conducting pacemaker impulses?
A) Motor cells




S
B) Mechanical cells
C) Electrical cells




R
D) Atrioventricular cells
Answer: C




VE
Page Ref: 1
Learning Obj.: 1.1

11) Which is the normal pacemaker of the heart?
A) SA node
B) AV node
IE
H
C) AV junction
D) Ventricle
AC

Answer: A
Page Ref: 5
Learning Obj.: 1.3
M



12) Which of the following is NOT a part of the normal cardiac conduction system?
A) Coronary sinus
B) AV node
EA




C) Purkinje Fibers
D) Internodal pathways
Answer: A
R




Page Ref: 5
Learning Obj.: 1.1
D




13) What is the term for the fail-safe mechanism that allows a lower pacemaker to take over
when a higher site fails?
A) Polarization
B) Irritability
C) AV conduction
D) Escape
Answer: D
Page Ref: 7
Learning Obj.: 1.4


3
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, 14) Which of the following best explains the mechanism called irritability?
A) The ventricles repolarize before they are ready.
B) The normal pacemaker slows down and gives up control.
C) A lower pacemaker site speeds up to take control of the heart.
D) The normal pacemaker changes its inherent rate.
Answer: C
Page Ref: 7
Learning Obj.: 1.4

15) Which of the following does NOT happen when the sympathetic branch is stimulated?
A) Heart rate increases.
B) The heart becomes more irritable.




S
C) Impulses go faster through the AV node.
D) Ventricular conduction slows down.




R
Answer: D
Page Ref: 8




VE
Learning Obj.: 1.4



IE
H
AC
M
EA
R
D




4
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