Electrocardiography for Healthcare Professionals 5Th Edition By Booth – Test Bank
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Sample Test
Electrocardiography for Healthcare Professionals, 5e (Booth)
Chapter 3 The Electrocardiograph
1) The ECG waveform is indicative of:
1. A)
how the heart is functioning electrically.
2. B)
abnormal heart valve conditions.
3. C)
the contraction of heart muscles.
4. D)
the heart’s pumping capability.
Answer: A
Explanation: The ECG waveform indicates how the heart is
functioning electrically.
Difficulty: 1 Easy
Topic: Producing the ECG Waveform
Learning Objective: 03.01 Explain the three types of leads
and how each is recorded.
Bloom’s: Remember
Accessibility: Keyboard Navigation
2) The Einthoven triangle is formed by the following three limb
leads:
1. A)
right arm, left arm, right leg.
2. B)
right leg, left arm, left leg.
3. C)
right arm, left arm, left leg.
4. D)
right leg, left leg, right arm.
Answer: C
Explanation: The Einthoven triangle is formed by the leads
from the right arm, left arm, and left leg.
Difficulty: 2 Medium
Topic: Producing the ECG Waveform
Learning Objective: 03.01 Explain the three types of leads
and how each is recorded.
Bloom’s: Remember
Accessibility: Keyboard Navigation
ABHES: 3.c Apply medical terminology for each specialty
3) Which of the following is not a type of lead used in a
12-lead ECG?
1. A)
Bipolar
2. B)
Unipolar
3. C)
Chest
4. D)
Abdomen
Answer: D
Explanation: Bipolar, unipolar, and the chest leads are
all types of leads in a 12-lead ECG.
Difficulty: 2 Medium
Topic: Producing the ECG Waveform
Learning Objective: 03.01 Explain the three types of leads
and how each is recorded.
Bloom’s: Remember
Accessibility: Keyboard Navigation
4) Which of the following is not considered a bipolar lead?
1. A)
Lead I
2. B)
Lead II
3. C)
aVR
4. D)
Lead III
Answer: C
Explanation: Leads I, II, and III are known as bipolar
leads because they measure the flow of electrical current in two directions at
the same time.
Difficulty: 3 Hard
Topic: Producing the ECG Waveform
Learning Objective: 03.01 Explain the three types of leads
and how each is recorded.
Bloom’s: Remember
Accessibility: Keyboard Navigation
ABHES: 3.c Apply medical terminology for each specialty
5) The V1 lead should be placed at the:
1. A)
fourth intercostal space, left sternal border.
2. B)
fifth intercostal space at the midclavicular line.
3. C)
fifth intercostal space, midaxillary line.
4. D)
fourth intercostal space, right sternal border.
Answer: D
Explanation: Lead V1 is placed in the fourth intercostal
space, at the right sternal border.
Difficulty: 2 Medium
Topic: Producing the ECG Waveform
Learning Objective: 03.01 Explain the three types of leads
and how each is recorded.
Bloom’s: Remember
Accessibility: Keyboard Navigation
ABHES: 8.e Perform specialty procedures including but not
limited to minor surgery, cardiac, respiratory, OB-GYN, neurological, and
gastroenterology
6) For the proper placement of V3, you must have placed which
other two leads on the patient’s chest?
1. A) V2
and V4
2. B) V2
and V5
3. C) V5
and V4
4. D) V4
and V6
Answer: A
Explanation: Lead V3 is placed halfway between V2 and V4.
Difficulty: 2 Medium
Topic: Producing the ECG Waveform
Learning Objective: 03.01 Explain the three types of leads
and how each is recorded.
Bloom’s: Remember
Accessibility: Keyboard Navigation
ABHES: 8.e Perform specialty procedures including but not
limited to minor surgery, cardiac, respiratory, OB-GYN, neurological, and
gastroenterology
7) Unipolar leads include all the lead types except:
1. A) standard
leads.
2. B)
augmented leads.
3. C)
chest leads.
4. D)
precordial leads.
Answer: A
Explanation: The augmented and chest (precordial) leads
are unipolar; they measure in one direction only.
Difficulty: 2 Medium
Topic: Producing the ECG Waveform
Learning Objective: 03.01 Explain the three types of leads
and how each is recorded.
Bloom’s: Remember
Accessibility: Keyboard Navigation
ABHES: 3.c Apply medical terminology for each specialty
8) To obtain a 12-lead ECG tracing, you must apply how many lead
wires and electrodes to the patient?
1. A) 8
2. B) 12
3. C) 10
4. D) 3
Answer: C
Explanation: A 12-lead ECG is recorded using 10 lead
wires, which provide the 12 different views for the 12-lead tracing.
Difficulty: 2 Medium
Topic: Producing the ECG Waveform
Learning Objective: 03.01 Explain the three types of leads
and how each is recorded.
Bloom’s: Remember
Accessibility: Keyboard Navigation
ABHES: 8.e Perform specialty procedures including but not
limited to minor surgery, cardiac, respiratory, OB-GYN, neurological, and
gastroenterology
9) The V2 lead should be placed at the:
1. A)
fourth intercostal space, left sternal border.
2. B)
fifth intercostal space at the midclavicular line.
3. C)
fifth intercostal space, midaxillary line.
4. D)
fourth intercostal space, right sternal border.
Answer: A
Explanation: Lead V2 is placed in the fourth intercostal
space, at the left sternal border.
Difficulty: 2 Medium
Topic: Producing the ECG Waveform
Learning Objective: 03.01 Explain the three types of leads
and how each is recorded.
Bloom’s: Remember
Accessibility: Keyboard Navigation
ABHES: 8.e Perform specialty procedures including but not
limited to minor surgery, cardiac, respiratory, OB-GYN, neurological, and
gastroenterology
10) The leads that make up a 12-lead ECG consist of:
1. A) 6
standard, 3 augmented, and 3 chest leads.
2. B) 3
standard, 3 augmented, and 6 chest leads.
3. C) 6
augmented, 3 standard, and 3 chest leads.
4. D) 4
augmented, 4 standard, and 4 chest leads.
Answer: B
Explanation: The first three leads are the standard limb
leads, the second three leads are the augmented leads, and the last six leads
are the chest leads.
Difficulty: 2 Medium
Topic: Producing the ECG Waveform
Learning Objective: 03.01 Explain the three types of leads
and how each is recorded.
Bloom’s: Remember
Accessibility: Keyboard Navigation
ABHES: 8.e Perform specialty procedures including but not
limited to minor surgery, cardiac, respiratory, OB-GYN, neurological, and
gastroenterology
11) Which of the following is not a basic function of the
electrocardiograph?
1. A)
Input
2. B)
Signal processing
3. C)
Output display
4. D)
Analysis
Answer: D
Explanation: The three basic functions of the
electrocardiograph are input, signal processing, and output display. Most machines
also offer computerized measurement and analysis, but this is not considered a
basic function of the machine.
Difficulty: 1 Easy
Topic: ECG Machines
Learning Objective: 03.02 Identify the functions of common
ECG machines.
Bloom’s: Remember
Accessibility: Keyboard Navigation
ABHES: 2.c Identify diagnostic and treatment modalities as
they relate to each body system
12) Signal processing, which occurs inside the ECG machine,
1. A)
amplifies the electrical impulse.
2. B)
directs impulses to the ECG instrument.
3. C)
notifies the operator of input errors.
4. D)
provides an initial interpretation of the tracing.
Answer: A
Explanation: Signal processing amplifies the electrical
impulse and converts it into mechanical actions on the display. It prepares the
signal for transfer to the output display.
Difficulty: 2 Medium
Topic: ECG Machines
Learning Objective: 03.02 Identify the functions of common
ECG machines.
Bloom’s: Remember
Accessibility: Keyboard Navigation
13) The most commonly used paper speed on the ECG machine is:
1. A) 40
mm/sec.
2. B) 25
mm/sec.
3. C) 10
mm/sec.
4. D) 50
mm/sec.
Answer: B
Explanation: The most commonly used paper speed is 25
millimeters per second (25 mm/sec).
Difficulty: 1 Easy
Topic: ECG Controls
Learning Objective: 03.03 Explain how each ECG machine
control is used.
Bloom’s: Remember
Accessibility: Keyboard Navigation
ABHES: 8.e Perform specialty procedures including but not
limited to minor surgery, cardiac, respiratory, OB-GYN, neurological, and
gastroenterology
14) The gain control is normally set at:
1. A) 10
mm/mV.
2. B) 20
mm/mV.
3. C) 5
mm/mV.
4. D) 25
mm/mV.
Answer: A
Explanation: The normal setting for the gain control is 10
mm/mV.
Difficulty: 2 Medium
Topic: ECG Controls
Learning Objective: 03.03 Explain how each ECG machine
control is used.
Bloom’s: Remember
Accessibility: Keyboard Navigation
ABHES: 8.e Perform specialty procedures including but not
limited to minor surgery, cardiac, respiratory, OB-GYN, neurological, and
gastroenterology
15) Often it is difficult to read the ECG tracing if a patient’s
heart rate is fast. Where should you set the speed control to be able to
interpret the ECG tracing more easily?
1. A) 15
mm/sec
2. B) 25
mm/sec
3. C) 50
mm/sec
4. D)
100 mm/sec
Answer: C
Explanation: You would increase the speed to 50 mm/sec if
the patient has an unusually rapid heart rate.
Difficulty: 2 Medium
Topic: ECG Controls
Learning Objective: 03.03 Explain how each ECG machine
control is used.
Bloom’s: Understand
Accessibility: Keyboard Navigation
ABHES: 8.e Perform specialty procedures including but not
limited to minor surgery, cardiac, respiratory, OB-GYN, neurological, and
gastroenterology
16) The usual setting for the artifact filter is:
1. A) 10
to 20 Hz.
2. B) 20
to 40 Hz.
3. C) 40
to 150 Hz.
4. D)
100 to 250 Hz.
Answer: C
Explanation: A filter setting of 40 to 150 Hz is normally
used to reduce artifact on the ECG tracing.
Difficulty: 1 Easy
Topic: ECG Controls
Learning Objective: 03.03 Explain how each ECG machine
control is used.
Bloom’s: Understand
Accessibility: Keyboard Navigation
ABHES: 8.e Perform specialty procedures including but not
limited to minor surgery, cardiac, respiratory, OB-GYN, neurological, and
gastroenterology
17) You are preparing to conduct a 12-lead ECG on a patient. As you
are gathering your supplies, you notice that five of the electrodes are made by
one company and the other five electrodes are made by another company. What is
your next step?
1. A)
Conduct the 12-lead ECG with the electrodes present.
2. B)
Find a complete set of 10 electrodes that are the same.
3. C)
Tell your immediate supervisor that you couldn’t conduct the 12-lead ECG
procedure.
4. D)
Tell the patient to come back at another time when you have all the equipment.
Answer: B
Explanation: You should never mix two different types of
electrodes. This could cause an inaccurate tracing.
Difficulty: 2 Medium
Topic: Electrodes
Learning Objective: 03.04 Recognize common electrodes.
Bloom’s: Remember
Accessibility: Keyboard Navigation
ABHES: 8.e Perform specialty procedures including but not
limited to minor surgery, cardiac, respiratory, OB-GYN, neurological, and
gastroenterology
18) Which type of electrode is preferred for use in a hospital
or acute care setting?
1. A)
Disposable electrodes
2. B)
Plastic electrodes
3. C)
Silver electrodes
4. D)
Copper electrodes
Answer: C
Explanation: For hospitalized patients, longer-lasting
silver electrodes are available. These are used for patients who require
multiple, frequent ECGs.
Difficulty: 1 Easy
Topic: Electrodes
Learning Objective: 03.04 Recognize common electrodes.
Bloom’s: Remember
Accessibility: Keyboard Navigation
19) The ECG graph paper represents time horizontally and voltage
vertically. What time and voltage are represented by one large box?
1. A)
0.04 second and 0.1 mV
2. B)
0.20 second and 0.5 mV
3. C) 1
second and 0.4 mV
4. D)
0.5 second and 0.2 mV
Answer: B
Explanation: Each vertical line represents 0.20 second and
each horizontal heavy line represents 0.5 mV.
Difficulty: 2 Medium
Topic: ECG Graph Paper
Learning Objective: 03.05 Describe the ECG graph paper.
Bloom’s: Understand
Accessibility: Keyboard Navigation
20) You are performing a 12-lead ECG on a hospital patient using
a portable ECG machine on a cart. As you are conducting the ECG, a red line appears
at the bottom of the ECG graph paper. What should you do?
1. A)
Stop the ECG and check the placement of the electrodes.
2. B)
Continue the ECG, but remember to replace the paper before performing the next
ECG.
3. C)
Stop the ECG and replace the paper, then resume conducting the ECG.
4. D)
Continue the ECG, but make a note on the ECG tracing that the patient moved
during the recording.
Answer: B
Explanation: If a thick red line appears at the bottom of
the graph paper while you are performing an ECG, it indicates that the paper
supply is getting low and needs to be changed soon.
Difficulty: 2 Medium
Topic: ECG Graph Paper
Learning Objective: 03.06 Calculate heart rates using an
ECG tracing.
Bloom’s: Apply
Accessibility: Keyboard Navigation
ABHES: 8.e Perform specialty procedures including but not
limited to minor surgery, cardiac, respiratory, OB-GYN, neurological, and
gastroenterology
21) Each little box on the ECG paper horizontally represents:
1. A)
0.04 second.
2. B)
0.20 second.
3. C) 1
mV.
4. D) 1
second.
Answer: A
Explanation: The smallest box on the graph paper
represents 0.04 second.
Difficulty: 1 Easy
Topic: ECG Graph Paper
Learning Objective: 03.06 Calculate heart rates using an
ECG tracing.
Bloom’s: Understand
Accessibility: Keyboard Navigation
22) Which of the following is an advantage of using dot matrix
paper instead of the standard grid paper?
1. A)
Dot matrix paper is a heat-transfer paper that does not require ink.
2. B)
Dot matrix paper is less expensive than standard grid paper.
3. C)
Dot matrix paper produces sharper photocopies than standard grid paper.
4. D)
Dot matrix paper is more readily available than standard grid paper.
Answer: C
Explanation: Advantages of using dot matrix are that it
requires less ink (although it does use some ink), is easier to read, and
produces sharper photocopies. One advantage of standard grid paper is that it
is slightly less expensive.
Difficulty: 2 Medium
Topic: ECG Graph Paper
Learning Objective: 03.06 Calculate heart rates using an
ECG tracing.
Bloom’s: Understand
Accessibility: Keyboard Navigation
ABHES: 8.e Perform specialty procedures including but not
limited to minor surgery, cardiac, respiratory, OB-GYN, neurological, and
gastroenterology
23) Which of the following substances can accidentally erase an
ECG tracing?
1. A)
Standard copier paper
2. B)
Pencil lead
3. C)
Plastic
4. D)
Cardboard
Answer: C
Explanation: Certain substances, such as alcohol, plastic,
sunlight, and x-ray film, can erase the ECG tracing.
Difficulty: 2 Medium
Topic: ECG Graph Paper
Learning Objective: 03.06 Calculate heart rates using an
ECG tracing.
Bloom’s: Understand
Accessibility: Keyboard Navigation
24) How long must the ECG tracing be maintained as part of a
patient’s medical record?
1. A) 7
years
2. B) 3
years
3. C) 10
years
4. D) 15
years
Answer: A
Explanation: The ECG report is part of a patient’s medical
record and must be maintained for at least seven years.
Difficulty: 1 Easy
Topic: ECG Graph Paper
Learning Objective: 03.06 Calculate heart rates using an
ECG tracing.
Bloom’s: Understand
Accessibility: Keyboard Navigation
ABHES: 4.f Comply with federal, state, and local health
laws and regulations as they relate to healthcare settings
25) When the paper speed is 25 mm/sec, how many boxes are
present in a 1-minute recording?
1. A)
150 boxes per minute
2. B)
600 boxes per minute
3. C)
300 boxes per minute
4. D)
450 boxes per minute
Answer: C
Explanation: When you are running the ECG at 25 mm/sec,
there are 300 large boxes in a 1-minute strip.
Difficulty: 3 Hard
Topic: Calculating Heart Rate
Learning Objective: 03.06 Calculate heart rates using an
ECG tracing.
Bloom’s: Apply
Accessibility: Keyboard Navigation
ABHES: 8.e Perform specialty procedures including but not
limited to minor surgery, cardiac, respiratory, OB-GYN, neurological, and
gastroenterology
26) Which one of these is not a commonly used method to
calculate heart rates?
1. A)
R-R method
2. B)
1500 method
3. C)
1-minute method
4. D)
6-second method
Answer: C
Explanation: The R-R, 1500, and 6-second methods are all
commonly used to calculate heart rates.
Difficulty: 1 Easy
Topic: Calculating Heart Rate
Learning Objective: 03.06 Calculate heart rates using an
ECG tracing.
Bloom’s: Understand
Accessibility: Keyboard Navigation
27) Which method is the only one to be used for irregular
rhythms?
1. A)
R-R method
2. B)
6-second method
3. C)
1500 method
4. D)
1-minute method
Answer: B
Explanation: The 6-second method is the only appropriate
technique for irregular rhythms, although it can also be used for regular
rhythms.
Difficulty: 2 Medium
Topic: Calculating Heart Rate
Learning Objective: 03.06 Calculate heart rates using an
ECG tracing.
Bloom’s: Understand
Accessibility: Keyboard Navigation
28) When estimating the heart rate with the 6-second method, you
locate 6 seconds on a rhythm strip, count the number of complexes, and multiply
by:
10.
A) 10.
11.
B) 60.
12.
C) 5.
13.
D) 15.
Answer: A
Explanation: To estimate the heart rate using the 6-second
method, locate a 6-second section of the ECG rhythm strip, count the number of
complete complexes in this section, then multiply the number of complexes by
10.
Difficulty: 2 Medium
Topic: Calculating Heart Rate
Learning Objective: 03.06 Calculate heart rates using an
ECG tracing.
Bloom’s: Apply
Accessibility: Keyboard Navigation
29) Which method of calculating the heart rate is shown below?
1. A)
1500 method
2. B)
R-R method
3. C)
6-second method
4. D)
1-minute method
Answer: B
Explanation: This is the R-R method.
Difficulty: 1 Easy
Topic: Calculating Heart Rate
Learning Objective: 03.06 Calculate heart rates using an
ECG tracing.
Bloom’s: Remember
Accessibility: Keyboard Navigation
30) Using the 1500 method, calculate the heart rate.
1. A) 40
bpm
2. B) 60
bpm
3. C) 80
bpm
4. D) 20
bpm
Answer: A
Explanation: Count the number of small boxes between the
two R waves and divide into 1500. There are 38 small boxes. 1500/38 = 40.
Difficulty: 2 Medium
Topic: Calculating Heart Rate
Learning Objective: 03.06 Calculate heart rates using an
ECG tracing.
Bloom’s: Apply
Accessibility: Keyboard Navigation
31) Which heart rate method is the most accurate with regular
rhythms?
1. A)
R-R method
2. B)
6-second method
3. C)
1500 method
4. D)
300 method
Answer: C
Explanation: The most accurate method for determining the
rate of a regular rhythm is the 1500 method.
Difficulty: 2 Medium
Topic: Calculating Heart Rate
Learning Objective: 03.06 Calculate heart rates using an
ECG tracing.
Bloom’s: Understand
Accessibility: Keyboard Navigation
32) To perform an ECG with accuracy, the best source to obtain
specific information about the machine you are using is to consult:
1. A)
the policy and procedure manual.
2. B)
the manufacturer’s instructions.
3. C)
your supervisor.
4. D) a
co-worker.
Answer: B
Explanation: You should become familiar with the type of
machine you will be using by reading the manufacturer’s instructions.
Difficulty: 1 Easy
Topic: ECG Machines
Learning Objective: 03.02 Identify the functions of common
ECG machines.
Bloom’s: Remember
Accessibility: Keyboard Navigation
33) Computerized interpretation of the ECG tracing:
1. A)
can be used for the actual diagnosis.
2. B) is
usually validated by the technician.
3. C)
must be validated by a physician.
4. D)
replaces the physician’s interpretation.
Answer: C
Explanation: All computerized interpretation of the ECG
tracing needs to be validated by a physician.
Difficulty: 1 Easy
Topic: ECG Machines
Learning Objective: 03.02 Identify the functions of common
ECG machines.
Bloom’s: Remember
Accessibility: Keyboard Navigation
34) A multichannel ECG monitors all 12 leads but usually records
how many leads at one time?
1. A) 12
leads
2. B) 3
leads
3. C) 1
lead
4. D) 4
leads
Answer: B
Explanation: The multichannel recorder monitors all 12
leads but records 3 leads at once and switches automatically, recording each of
the four sets of 3 leads.
Difficulty: 1 Easy
Topic: ECG Machines
Learning Objective: 03.02 Identify the functions of common
ECG machines.
Bloom’s: Remember
Accessibility: Keyboard Navigation
35) Which of the following is a valid reason to change the speed
of the ECG tracing?
1. A)
The patient is a paramedic and requests a different speed.
2. B)
You cannot clearly identify the waves because they are too close together.
3. C)
The patient is having difficulty breathing.
4. D)
The patient has high blood pressure.
Answer: B
Explanation: Changing the speed is usually done at the
request of the physician or if the waveforms are too close together. If you
change the speed, you must note this on the tracing and notify the practitioner
who will be interpreting the ECG.
Difficulty: 2 Medium
Topic: ECG Controls
Learning Objective: 03.03 Explain how each ECG machine
control is used.
Bloom’s: Understand
Accessibility: Keyboard Navigation
ABHES: 8.e Perform specialty procedures including but not
limited to minor surgery, cardiac, respiratory, OB-GYN, neurological, and
gastroenterology
36) If you attempt to record an ECG and no tracing appears, what
should you do?
1. A)
Recheck the lead wires to make sure they are placed correctly.
2. B)
Notify the physician.
3. C)
Switch the arm and leg leads.
4. D)
Stop the procedure and explain to the patient that the machine is
malfunctioning.
Answer: A
Explanation: If you place the lead wires incorrectly, the
ECG will not record at all or it will record the waveforms improperly. Always
check and recheck the lead wires before you begin the tracing.
Difficulty: 1 Easy
Topic: Producing the ECG Waveform
Learning Objective: 03.01 Explain the three types of leads
and how each is recorded.
Bloom’s: Understand
Accessibility: Keyboard Navigation
ABHES: 8.e Perform specialty procedures including but not
limited to minor surgery, cardiac, respiratory, OB-GYN, neurological, and
gastroenterology
37) The term bradycardia means:
1. A)
fast heart rate.
2. B)
slow heart rate.
3. C)
normal heart rate.
4. D)
absence of heart rate.
Answer: B
Explanation: Bradycardia is a slow heart rate, usually
less than 60 bpm.
Difficulty: 1 Easy
Topic: ECG Controls
Learning Objective: 03.03 Explain how each ECG machine
control is used.
Bloom’s: Understand
Accessibility: Keyboard Navigation
ABHES: 3.c Apply medical terminology for each specialty
38) The term tachycardia means:
1. A)
fast heart rate.
2. B)
slow heart rate.
3. C)
normal heart rate.
4. D)
absence of heart rate.
Answer: A
Explanation: Tachycardia is a fast heart rate, usually
greater than 100 bpm.
Difficulty: 1 Easy
Topic: ECG Controls
Learning Objective: 03.03 Explain how each ECG machine
control is used.
Bloom’s: Understand
Accessibility: Keyboard Navigation
ABHES: 3.c Apply medical terminology for each specialty
39) How many leads does a multichannel recorder monitor at one
time?
1. A) 3
2. B) 6
3. C) 10
4. D) 12
Answer: D
Explanation: Although it only records three (or sometimes
six) leads at a time, a multichannel recorder monitors all 12 leads.
Difficulty: 2 Medium
Topic: ECG Machines
Learning Objective: 03.02 Identify the functions of common
ECG machines.
Bloom’s: Understand
Accessibility: Keyboard Navigation
40) The process of studying a current ECG tracing along with
older ECGs taken at intervals to note differences in a patient’s condition is:
1. A)
multichannel recording.
2. B)
ECG calibration.
3. C)
serial ECG comparison.
4. D)
quality control inspection.
Answer: C
Explanation: A serial ECG comparison is a comparison of
ECG tracings recorded at intervals based on the patient’s condition to help
detect subtle changes that may indicate myocardial abnormalities such as
ischemia, injury, or infarction.
Difficulty: 1 Easy
Topic: ECG Machines
Learning Objective: 03.02 Identify the functions of common
ECG machines.
Bloom’s: Remember
Accessibility: Keyboard Navigation
ABHES: 3.c Apply medical terminology for each specialty
41) Which of the following has enhanced a patient’s right to
control his or her own health information, making it necessary to handle ECG
tracings confidentially?
1. A)
OSHA
2. B)
HIPAA
3. C)
CDC
4. D)
AHA
Answer: B
Explanation: One of the primary purposes of HIPAA is to
protect and enhance the rights of patients by controlling the inappropriate use
or disclosure of patient information. This includes ECG tracings, which are
part of the patient’s medical record.
Difficulty: 1 Easy
Topic: ECG Machines
Learning Objective: 03.02 Identify the functions of common
ECG machines.
Bloom’s: Remember
Accessibility: Keyboard Navigation
ABHES: 4.h Demonstrate compliance with HIPAA guidelines,
the ADA Amendments Act, and the Health Information Technology for Economic and
Clinical Health (HITECH) Act
42) The control on the ECG machine that increases or decreases
the size of the ECG tracing is the:
1. A)
speed control.
2. B)
artifact filter.
3. C)
gain control.
4. D)
heart rate limit control.
Answer: C
Explanation: The output or height of the ECG waveform is
controlled by the gain control. If you change this setting, you must record the
change on the ECG report.
Difficulty: 1 Easy
Topic: ECG Controls
Learning Objective: 03.03 Explain how each ECG machine
control is used.
Bloom’s: Understand
Accessibility: Keyboard Navigation
ABHES: 8.e Perform specialty procedures including but not
limited to minor surgery, cardiac, respiratory, OB-GYN, neurological, and
gastroenterology
43) Unwanted marks on an ECG tracing that are not related to the
heart’s electrical activity are known as:
1. A)
gain.
2. B)
artifact.
3. C)
input.
4. D)
output.
Answer: B
Explanation: Artifact consists of unwanted marks on the
ECG tracing that are caused by activity other than the heart’s electrical
activity. The artifact filter is used to minimize these marks.
Difficulty: 1 Easy
Topic: ECG Controls
Learning Objective: 03.03 Explain how each ECG machine
control is used.
Bloom’s: Remember
Accessibility: Keyboard Navigation
ABHES: 3.c Apply medical terminology for each specialty
44) Which of the following conditions can an ECG machine detect
if you set up heart rate limits on the machine?
1. A)
Tachycardia
2. B)
Congestive heart failure
3. C)
Myocardial infarction
4. D)
Ischemia
Answer: A
Explanation: An ECG machine that has computer interpretation
can be set to detect bradycardia (heart rate that is too slow) and tachycardia
(heart rate that is too fast).
Difficulty: 2 Medium
Topic: ECG Controls
Learning Objective: 03.03 Explain how each ECG machine
control is used.
Bloom’s: Understand
Accessibility: Keyboard Navigation
ABHES: 8.e Perform specialty procedures including but not
limited to minor surgery, cardiac, respiratory, OB-GYN, neurological, and
gastroenterology
45) Which type of electrode is most commonly used to perform an
ECG?
1. A)
Carbon
2. B)
Silver
3. C)
Gold
4. D)
Disposable
Answer: D
Explanation: Disposable electrodes are used for most
applications because they reduce the possibility of cross-contamination and can
be simply removed and discarded for easier cleanup.
Difficulty: 1 Easy
Topic: Electrodes
Learning Objective: 03.04 Recognize common electrodes.
Bloom’s: Remember
Accessibility: Keyboard Navigation
46) When serial ECGs are performed on a patient, which of the
following guidelines should be followed to ensure accurate results?
1. A)
The patient should not move between ECGs.
2. B)
The patient should not eat or drink between ECGs.
3. C)
The electrode placement must be the same for each ECG.
4. D)
The electrodes must be changed for each successive ECG.
Answer: C
Explanation: When serial ECGs are required, the same lead
placement must be used for each ECG. A slight change in the position of an
electrode can cause a change in the tracing that may be interpreted as a change
in the patient’s heart function.
Difficulty: 2 Medium
Topic: Electrodes
Learning Objective: 03.04 Recognize common electrodes.
Bloom’s: Understand
Accessibility: Keyboard Navigation
ABHES: 8.e Perform specialty procedures including but not
limited to minor surgery, cardiac, respiratory, OB-GYN, neurological, and
gastroenterology
47) You are preparing to perform an ECG on a patient. When you
open a new package of disposable electrodes, you notice that the gel appears to
have dried out on some of the electrodes. What should you do?
1. A)
Use them because they are new and the package was sealed.
2. B)
Apply new gel to the electrodes and use them.
3. C)
Consult your supervisor about whether to use the electrodes.
4. D)
Discard the electrodes and open another package.
Answer: D
Explanation: Always check electrodes—even new disposable
electrodes—to make sure the gel has not dried out. If it has, discard the
package and open another one. Applying new gel to the electrodes may not be
effective because the dried gel may form a barrier to conduction.
Difficulty: 2 Medium
Topic: Electrodes
Learning Objective: 03.04 Recognize common electrodes.
Bloom’s: Apply
Accessibility: Keyboard Navigation
48) ECG machines are calibrated so that:
1. A) 1
cm = 1 second.
2. B) 1
mV = 1 second.
3. C) 1
cm = 1 mV.
4. D) 1
mV = 0.5 cm.
Answer: C
Explanation: ECG machines are calibrated so that 1 cm = 1
mV.
Difficulty: 3 Hard
Topic: ECG Graph Paper
Learning Objective: 03.05 Describe the ECG graph paper.
Bloom’s: Remember
Accessibility: Keyboard Navigation
49) Estimate the heart rate using the R-R method.
1. A)
100 bpm
2. B)
125 bpm
3. C)
150 bpm
4. D)
160 bpm
Answer: C
Explanation: Using the R-R method, count the number of
large boxes between R waves, which in this case is 2 because partial boxes are
not counted. Divide 300 by 2 to estimate 150 beats per minute.
Difficulty: 3 Hard
Topic: Calculating Heart Rate
Learning Objective: 03.06 Calculate heart rates using an
ECG tracing.
Bloom’s: Apply
Accessibility: Keyboard Navigation
ABHES: 8.e Perform specialty procedures including but not
limited to minor surgery, cardiac, respiratory, OB-GYN, neurological, and
gastroenterology
50) Estimate the heart rate using the 1500 method.
1. A)
100 bpm
2. B)
125 bpm
3. C)
150 bpm
4. D)
160 bpm
Answer: A
Explanation: Using the 1500 method, count the number of
small boxes between R waves, which in this case is 15. Divide 1500 by 15 to
estimate the heart rate at 100 beats per minute.
Difficulty: 3 Hard
Topic: Calculating Heart Rate
Learning Objective: 03.06 Calculate heart rates using an
ECG tracing.
Bloom’s: Apply
Accessibility: Keyboard Navigation
ABHES: 8.e Perform specialty procedures including but not
limited to minor surgery, cardiac, respiratory, OB-GYN, neurological, and
gastroenterology
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