1
Q
what should the ekg tech do if a patient has a scar where the electrode should be placed
A
place the electrode as close as possible to the normal location but not on the scar
2
Q
where does junctional tachycardia arise from
A
av node
3
Q
what body system controls involuntary actions
A
autonomic nervous system
4
Q
what is the term for multiple premature ventricular complexes (PVCs) that are different within the same tracing
A
Multifocal
5
Q
what piece of PPE should be worn with airborne precautions
A
N95 respirator
6
Q
what term is used to describe identical ekg feautres
A
monomorphic
7
Q
the anterior surface of the heart primarily consists of __-
A
right ventricle
8
Q
names, dob, and ssn and medical numbers are examples of?
A
phi (protected health information)
9
Q
what is the term for an electrical change in the heart in which the voltage of the cells become more negative and the cells relax?
A
repolarization
10
Q
which term referes to ekg artifact caused by frayed or faulty lead wires
A
broken recording/interrupted baseline
11
Q
what term refers to the shape and direction of waves, complexes and segments on an EKG tracing
A
morphology
12
Q
what structure make sures blood flows thru the heart in the correct direction
A
valves
13
Q
if the rate in atrial fibrillation is less than 100 bpm, it is considered to be?
A
controlled
14
Q
what term decribes 3 premature ventricular complexes (PVCs) in a row as part of a rhythm with no P wave, a QRS duration greater than .10 seconds and a rate of 100-20 bpm
A
run of ventricular tachycardia
15
Q
in what setting is a holter monitor used
A
ambulatory
16
Q
All body fluids and blood should be treated as if they are
A
infected
17
Q
When the cardiac muscle is stimulated, the cell is said to?
A
Depolarize
18
Q
Which of the following is a characteristic of ventricular tachycardia?
A
QRS duration greater than 0.10 seconds
19
Q
What describes a complete absence of electrical activity in the
A
asystole
19
Q
Where should lead V6 be placed?
A
Horizontally, even with V4 and V5 in the left midaxillary line
20
Q
What is the best way to identify an inpatient
A
By reading their wristband
20
Q
What term is used for a normal rhythm with a rate of greater than 100 bpm
A
sinus tachycardia
20
Q
The innermost lining of the heart is called
A
Endocardium
20
Q
The primary pacemaker of the heart is the
A
Sinoatrial node
21
What represents depolarization of the ventricles on an EKG?
QRS complex
22
What is the first thing in EKG technician must check when applying a telemetry pack
the batteries
23
what term describes an irregular atrial rhythm with the rate of 60-100 bpm, variations in PR interval, and at least 3 p wave variations in one lead
wandering atrial pacemaker
24
AHA is the
American heart Association
24
what is the term for the difference in electrical charge between electrodes
voltage
25
Which of the following small waves sometimes appears between the T wave and the P wave?
u wave
25
what is the pericardium?
the sac that encloses the heart
26
which of the following is a sign of decreased cardiac output
fatigue
26
what is the name of the type of EKG artifact that can be caused by loose electrodes or poor electrode contact
wandering baseline
27
What term describes a rhythm with regular P-P and R-R intervals, a normal P wave before each QRS complex and a rate below 60 bpm.
sinus bradycardia
27
what is the term for a rare heart condition that causes the heart to develop pointing to the right side of the chest instead of the left side?
dextrocardia
27
what type of rhythm occurs when an electrical impulse generated in the SA note is blocked by the AV note or AV bundle
heart block
27
Which electrolyte triggers, the first step in an electrical impulse in the heart.
sodium
28
what is an important safety measure when performing a stress test
the facility should be equipped w/ oxygen
28
in second-degree heart block Mobitz type 1 __
some beats are completely blocked
28
which of the following EKG findings should be reported to the doctor right away
st segment depression
29
What is the mediastinum?
the space between the lungs in the middle of the chest
30
An axillary temperature is typically
lower than an oral temperature
30
What is the term for metallic clip on an EKG machine that helps the adhesive make contact with the lead wire
electrode
31
What is the QRS duration in supraventricular tachycardia (SVT)
less than .12 seconds
32
Blood entering the right atrium is
deoxygenated
33
What organization inspects an examines workplace
osha
34
what modifications for electro placement should be used for patients who are less than two years old
mirror image of standard placement
35
where does junctional tachycardia arise from?
av node
35
how long is a normal PR interval?
.12 to .20 seconds
36
What term describes the condition where the heart is unable to pump blood well leading to a buildup of fluid in the body
chf - congestive heart failure
37
What is the name of the type of EKG artifact that can be caused by plants or equipment use near the EKG machine
electrical interference
38
What term is used to describe the condition where the electrical signal from the atria to the ventricles is completely blocked
3rd degree heart block
39
wolff-parkinson-white syndrome is characterized by
short PR interval, delta wave, wide QRS complex
40
Which electrodes are not used in posterior EKG placement
v4, v5, v6
41
What is the epicardium?
the outer layer of the heart wall
42
Electrode connected to the EKG machine by
lead wires
43
which of the following creates a spike like wave on EKG chasing
artificial pacemaker
43
where are the beta-1 receptors located
heart and kidneys
44
what gain setting is standard gain
10mm/mV
45
what should an EKG technician do when a patient needs to change into a gown
provide a private area for them to change
46
what does it mean when a patient is on contact precautions
they have an illness that can be spread by touch
47
a premature ventricular, contraction, (PVC) originates from ___ the instead of the sinoatrial (SA) node
purkinje fibers
48
what is a Holter monitor used to diagnose
arrhythmias
49
what is a Holter monitor used to diagnose which of these electrolytes plays an important role in cardiac conduction
sodium
50
Which of the following items should be worn when entering the room of a patient on droplet precautions?
surgical mask
50
The inherent rate for the atrioventricular junction is
40-60 bpm
51
leads ll, lll, and aVF view which portion of the heart
inferior
52
the __ seperates the right and left ventricles
intraventricular septum
53
What is the most common type of supraventricular tachycardia?
Atrioventricular, nodal reentrant tachycardia (AVNRT)
54
What are U waves thought to represent?
Reputation of the purkinje fibers
55
Before performing an EKG on a patient it is important to have the patients
consent
56
tall peaked t waves observed on the ekg are most commonly seen in patients with
hyperkalemia
57
electrical imposes are delivered to the ventricles by way of the
bundle branches
58
what is the formula for age predicted maximal heart rate?
220-patients age
58
what is the term for an extra beat that appears on an EKG that is not part of an arrhythmia
ectopic
59
A sinus rhythm at a rate of 48 would be considered
bradycardia
60
The basic contractor unit of a myofibril is a
sarcomere
61
What is the term for two or more EKG leads that record activity in the same area of the heart
continguous
62
Which of the following are chest leads?
v1,v2,v3,v4,v5,v6
63
What is the name of the flat line between the end of the P wave and the onset of the QRS complex?
pr segment
64
What is the name of the law protecting patient privacy to which EKG technicians must adhere?
hippa
64
A dysrhythmia is best to defined as
abnormal heart rhythm
65
What is the name of the imaginary triangle formed by the placement of the electrodes that record the limb leads?
einthoven triangle
65
which of the following is an example of a patient condition that may require changes to the standard EKG testing procedure
pregnancy
65
What happens when a patient is on a telemetry heart monitor
a heathcare worker monitors their heart rhythm at a central station
65
Which of the following or originate in the AV Junction?
accelerated junctional rhythm
65
In atrial tachycardia, the rate is
100-250 bpm
65
Which term describes an EKG wave that moves upward from an isoelectric line
positive
65
What is syncope?
loss of consciousness
65
Patient with angina pectoris have
chest pain
65
the heart has _ chambers
4
65
What should an EKG technician always do before touching a patient?
ask permission
65
what happens to an electrical signal in the atrioventricular node?
it slows down before traveling to the ventricles
65
How should electrons be placed for a patient with dextrocardia?
mirror image
65
what should a patient with a holter monitor be told about their daily activities while wearing the monitor
they should do their normal daily activities
65
what is the heart rate in ventricular fibrillation
not measureable
66
when should ekg technicians wash their hands
both before and after providing patient care
67
what term is used to describe a pacemarker site outside of the sinoatrial node
ectopic
68
the _ supplies the right atrium and ventricle with blood
right coronary artery
69
what does the t wave represent
ventricular repolarization
69
what term refers to abnormal, early beats resulting from electrical activity in the atria
premature atrial complexes (PACs)
70
failure to capture on an ekg indicates which of the following about a patient
They have a pacemaker
70
Which of the following may need to be used when performing an EKG on a patient was under contact precautions
disposable leads
70
How many leads does a holter monitor use?
5
71
An EKG technician should utilize cause precautions when encountering a patient with which of the following
MRSA
72
the pr segment represents electrical conduction thru the
atria and AV node
73
in 2:1 AV block, the pr interval
remains the same
74
What term refers to a loop in the lead wire close to the electrodes designed to reduce the tension of the electrodes
stress loop
75
Impulses from the atrioventricular node go through the ___ to the right and left bundle branches
bundle of his
76
What type of test is used to evaluate the heart function during physical activity?
stress test
77
A stress test should be stopped immediately if the patient is
dizzy
78
When performing an EKG, which position is most likely to be comfortable for a patient with respiratory or heart problems
semi-fowlers
79
How many lead wires does an EKG machine have?
10
80
Which of the following EKGs are bipolar
l, ll, lll
81
The upper chambers of the heart are called
atria
82
Which of the following describes tachycardia?
heart rate faster than 100bpm
83
swelling due to fluid buildup in tissues is called
edema
84
What should be done to reusable EKG machine components between patient encounters
disinfection
85
The bicuspid valve is also called the
mitral valve
86
When the cardiac muscle cells are stimulated
the heart contracts
87
What is the general term for an abnormal heart rhythm?
dysrhythmia
88
In first degree AV block the PR interval is
greater than 0.2 seconds
89
What is the name for spikes that do not align with the patient's cardiac activity on an EKG tracing from a patient with an implanted permanent pacemaker
failure to sense
90
Junctional rhythm occurs when impulses are generated in the
AV junction
91
Leads v3 and V4 view which portion of the heart
anterior
92
Which of the following are the atrioventricular valves?
tricuspid and mitral
93
what is the typical rate of a junctional escape rhythm
40-60 bpm
94
In order for stress test to be valid, a patient must reach a heart rate that is what percent of their age predicted maximal heart rate
85%
95
What is the category of heart rhythm in which QRS complexes may or may not look alike, but our irregular in a clear repeating pattern?
regularly irregular rhythm
96
What measurement represents ventricular depolarization and repolarization on an EKG
QT interval
97
in sinus arrhythmia, a gradual decreasing of the heart rate is usually associated with
expiration
97
Which of the following describes characteristics of atrial flutter?
atrial rate of 250-300 bpm, regular p-p and r-r intervals, pr interval not measurable, more than one p wave per qrs complex
98
what part of an ekg tracing should be evaluated to assess whether a rhythm is regular
the r-r interval
99
leads v1 and v2 view which portion of the heart
septal
100
What is the term for heartbeat created when a part of the heart electrical conduction system other than the essay note initiates the electrical impulse that causes the heart to beat
escape beat
101
in sinus arrhythmia, the rate will be
irregular?
102
what is the name of the straight line between a T wave and the next P wave
isoelectric line
103
which of the following is considered a prolonged PR interval
0.24 seconds
104
what can cause artifact on an ekg
patient movement
105
what represents repolarization of the ventricles on an ekg
t wave
106
what is the term for multiple premature ventricular complexes (PVCs) that are identical within the same tracing
unifocal
107
heart blocks are caused by conduction problems between the
atria and ventricles
107
stroke volume multiplied by the heart rate is the formula for
cardiac output
108
what is the name of the study that monitors a patients ekg during physical activity
stress test
109
what is the name of the type of ekg artifact that can be caused by frayed or broken lead wires
interrupted baseline or broken recording
110
which of the following can cause a wandering baseline
expired electrodes
111
which of the following can be attempted to reduce somatic tremor
provide the patient with a blanket
112
which of the following can ekg graph paper be used to measure
amplitude of electrical activity
113
what contains supplies that may be needed during a medical emergency
crash cart
114
which of the following is an organization that evaluates and accredits healthcare facilities
joint commission
115
which of the following terms means hardening of artery walls
arteriosclerosis
116
the presence or development of a blood clot inside a blood vessel is called
thrombosis
117
the QRS measurement for a premature atrial compex (PAC) should be
less than 0.12 seconds
118
a 12 lead ekg provides views from which 2 planes
frontal and horizontal
119
what does the p wave represent
atrial depolarization
120
an aneurysm is a sack formed by an outpocketing portion of a
blood vessel
121
which of the following should be noted on an ekg when a patient has ventricular escape beats
unmeasurable pr interval
