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EKG Review
EKG Review
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1
Which of the following parts of the EKG machine regulates the height of the waveforms on the tracing?
Artifact filter
Gain control
Electrodes
Lead selector
2
In order for the EKG tech to regulate the output or height of waveforms, he should adjust what?
Speed
Calibration
Stylus
Sensitivity
3
Which of the following statements would indicate the patient understands Holter monitoring?
If I feel symptoms then I should attach the monitor
I have a pacemaker so I cant wear a monitor
Remove the monitor when I exercise
I should wear the monitor continuously even during exercise
4
Which of the following can cause sinus arrhythmia in children?
SA node firing above 100/min
decreased O2 levels
patient's pacemaker
Respiration of the patient
5
Which of the following indicates pt understanding for a stress test?
Practice for the test by jogging 20 minutes daily
Eat a small meal right before the test
Discontinue normal medications
Wear comfortable clothing and shoes to the test
6
You are obtaining an EKG from a patient with chest pain. What change in waveform indicates a myocardial infarction?
Upright T waves
ST segment elevation
P wave inversion
Q waves less than one-third the height of the R wave
7
Which of the following are augmented leads?
I, II, III
V1, V2, V3
V4, V5, V6
aVR, aVL, and aVF
8
The atrioventricular valve on the left side of the heart.
Pulmonary semilunar valve
Aortic semilunar valve
Bicuspid Valve
Tricuspid Valve
9
A patient is experiencing cardiopulmonary compromise. What structure is the natural pacemaker of the heart?
Purkinje fibers
Bundle of His
Atrioventricular node (AV node)
Sinoatrial node (SA node)
10
A patient has ventricular tachycardia & becomes unresponsive. What action should you take first?
Obtain an automated external defibrilator.
Measure the patient's respiratory rate.B
Begin CPR
Print an EKG rhythm strip.
11
Which of the following is an appropriate place to take an infants pulse?
Carotid artery
Brachial artery
Femoral artery
Radial artery
12
Normal paper speed is
10mm/sec
50mm/sec
20mm/sec
25mm/sec
13
Which of the following heart block is most serious?
First Degree
Second Degree Type I
Second Degree Type II
Third Degree
14
For a normal patient, which describes the QRS complex anticipated in V4?
Increased duration
Completely negative
Half positive, half negative
Completely positive
15
CP, diaphoresis, SOB, Hypotension are all signs of what condition?
Hypertension
Ischemia
Laziness
Myocardial Infarction
16
Which statement indicates the need for further instruction regarding a Holter monitor?
If leads come loose I will reattach them
I will contact the office if machine malfunctions
I should sponge bathe while wearing monitor
I'll keep track of activity in a daily journal
17
Which of the following should you be most concerned about on an EKG tracing?
ST segment elevation
QT interval
Irregular rhythm
variable shape of p waves
18
Thin spikes before the P wave indicate that a pacemaker was implanted to pace what?
Ventricles
Early depolarization
Atria
Early repolarization
19
What is the correct lead placement for V4?
4th intercostal space at the midaxillary line
5th intercostal space midaxillary line
4th intercostal space at the midclavicular line
5th intercostal space midclavicular line
20
Which of the following is the only way to calculate both regular and irregular rhythms?
R-R interval
six second method
1500 method
300 method
21
You are planning to clean which action should you plan to take?
Wipe the equipment with a soft cloth moistened with disinfectant.
Prepare the quipment to undergo fluid sterilzation.
Prepare the equipment to undergo heat sterilization.
Wipe the equipment with a soft cloth moistened with acetone.
22
Artifact caused by patient shivering, seizures, or hyperventilation...
Wandering Baseline
60-cycle interferrence
Somatic tremors
Broken Recording
23
What is the correct order of a complete cardiac cycle in the normal heart?
P wave, QRS complex, U wave
P wave, Q wave, and ST segment
P wave, T wave, RS segment
P wave, QRS complex, and T wave
24
This is an example of medical history for a patient.
Pt takes medication for hypertention
Pt smokes a pack a day
Pt exercises on a regular basis
Pt has diabetes
25
During a stress test the patient appears to be hyperventilating. You should...
Stop the exercise portion of the test
Slow down the test
Administer O2
Check their respiratory rate
26
Whcih of the following patients should not recieve a stress test?
54 yo with unrelieved CP & ST elevation
74 yo with history of MI
82 yo c/o occasional "racing heart"
67 yo with normal EKG
27
The right side of the heart is...
stronger than the left
Oxygenated
Deoxygenated
weaker than the left
28
Which of the following statements would indicate understanding for a Holter Monitor test?
"I will push the button after I jog"
"I will push the button if I experience discomfort"
"I will push the button before taking meds"
"I will push the button after every meal"
29
Mr. Smith is taking Metaprolol for hypertension. What is a common side effect?
Severe headache
Tachycardia
Hypotension
Constipation
30
Atypical vertical projections in the EKG are likely caused by what?
Defibrillator spikes
Intrinsic vertical anomaly
Intrinsic R waves
Pacemaker spikes
31
Artifact caused by frayed wires...
Wandering Baseline
Somatic tremor
Electrical interferrence
60-cycle interferrence
32
Which of the following describes proper limb lead placement for a 12-lead EKG?
Precise placement does not effect EKG
Limb leads are applied to wrists and ankles
Limb leads are all unipolar and should be placed on trunk
limb leads can be placed anywhere on torso
33
Repairs on an EKG machine should be done by who?
The Laboratory technician
Biomedical Technician
The EKG Technician
Handy Manny
34
You should identify the EKG tracing below as which of the following artifacts?
Interrupted baseline
Wandering baseline
Interference
Somatic tremor
35
These leads read lateral wall involvment.
Leads I, aVL, V5, V6
V7-V9
V1, V2
II, III, aVF
36
Normal pulse rate for an infant is...
80-150
40-60
100-160
60-100
37
You observe peaked, hyper acute T waves and concave ST segments. This indicates...
Signs of a PE
Signs of Myocardial Ischemia
Normal changes from running
Hypokalemia
38
Depolariazation means
AV node firing
Contraction
SA Node firing
Relaxation
39
When reviewing Holter monitoring results, the CET notices long pauses. This could be caused by
Dead battery
Loose connection of the leads
Monitor was placed in water
Movement of electrodes
40
A tracing has a PR interval of 0.28. How many milliseconds is this?
240 millisoconds
160 milliseconds
120 milliseconds
280 milliseconds
41
Convex ST segments indicate
CVA
Ischemia
TIA
MI
42
Which of these signs should you be concerned with during a stress test?
Decreased premature beats
Increased respiratory rate
Decreased heart rate
Diaphoresis
43
Which of the following would describe proper skin preparation prior to applying electrodes?
Have pt apply electrodes prior to exercise
cleanse with alcohol, remove any hair, abrade epidermis
Apply an adhesive to the skin
Cleanse with soap and water
44
After the MD explains the procedure, Mr. Smith signs paperwork to allow the test. This is...
the law
negligence
Informed consent
Implied consent
45
You are preparing a patient for an EKG. Which action should you take?
Allow the patient to wear a bracelet.
Inform the patient to expect minor shocks.
Ask the patient to turn off any electronic devices.
Request that the patient pull their shirt up.
46
During stress test, pt c/o diziness. After stopping the test, you should...
Administer O2
Contact patient's spouse
Obtain vital signs
Notify the physician
47
The PR interval is .48. How many milliseconds is this?
820 milliseconds
780 milliseconds
480 milliseconds
520 milliseconds
48
This is an example of social history for a patient.
Pt c/o CP
Pt smokes a pack a day
Grandfather had hypertension
Tonsilectomy
49
What modification to lead placement is made for stress testing?
V6 is placed at 5th intercostal space midclavicular line
In Lead II left leg is positive while right arm is negative
Limb leads are moved to pts torso
Limb lead is applied to right leg to act as a ground
50
After completing EKG, the tech should...
Remove the tracing and leave exam room so pt can dress
Tell pt how EKG looks and tell them the dr will be in soon
Remove the electrodes and help pt sit up
Check the tracing to make sure it is clear of artifact
51
For a five lead EKG, where should the red lead be placed?
Upper right shoulder
Upper left shoulder
Lower left torso
Lower right torso
52
Repolarization means
AV node firing
Relaxation
Contraction
SA Node firing
53
An EKG technician is about to perform an EKG on a 3 yo. Which is an appropriate action to take?
Restrain the child
Have the parent hold the child on their lap
Tell the child it will not hurt
Ask the parent to step out of the room
54
Which of the following correctly prepares the patient for telemetry monitoring?
Electrodes will be replaced every 24 hrs while in the hosp
A mild rash may occur at electrode sites
"You may cleanse the skin with alcohol"
You may feel a warming sensation after electrodes are placed
55
EKG Tech observes ST segment elevation in several leads. What should they suspect?
Myocardial Ischemia
Myocardial Infarction
Heart Block
NSR
56
When performing a stress test, patient c/o heaviness in chest and becomes diaphoretic. You...
Stop the test immediately
Call 911
Begin CPR
Nothing, this is normal
57
You are preparing to perform a 12-lead EKG for a patient with a heart rate of 225/min. Use what paper-speed settings?
5 mm/second
50 mm/second
10 mm/second
25 mm/second
58
The R-R interval on a patient's tracing has 5 big boxes. What is the patient's heart rate?
75/min
40/min
60/min
80/min
59
Which is the correct section to measure for the QRS complex?
Beginning of Q to beginning of S
End of Q to beginning of S
beginning of Q to end of S
Beginning of QR to end of RS
60
Which of the following are bipolar leads?
V1, V2, and V3
I, II, and III
V4, V5, V6
aVR, aVL, and aVF
61
The patient should be educated to not eat, drink, or smoke for three hours prior to which test?
Telemetry monitoring
EKG
Stress Test
Holter monitoring
62
Waveforms are negative in lead I but patient is A&O x 3. You should check leads between...
left leg, left arm
left leg, right arm
right arm, left leg
right arm, left arm
63
When performing a posterior EKG, where would you place V8?
left midscapular line
right midscapular line
left posterior axiallary line
right posterior axillary line
64
EKG Tech observes ST segment depression in several leads. Which should they suspect?
Myocardial Ischemia
Myocardial Infarction
Myocardial Injury
Heart Block
65
Which of the following modifications should be made for a two-year old child?
Reverse the limb leads
move the limb lead to the torso
Place the chest leads on the lower chest
Place the chest leads on the left back
66
Which of the following is most likely consistent with bradycardia?
BP 150/90
Hyperventilation
HR >100
cold/clammy skin
67
These leads read septal involvement
V7-V9
V5, V6
II, III, aVF
V1, V2
68
Which of the following intervals determines ventricular regularity?
QT
P-P
PR
R-R
69
Normal pulse rate for a child is...
100-160
40-60
60-100
70-120
70
While doing an EKG the pt becomes unresponsive, stops breathing and has no pulse. You should
perform rescue breathing
start chest compressions
retrieve the AED
Place pt in recovery position
71
Which of the following would be a reason to discontinue a stress test?
ST segment elevation
Increased HR
Increased diaphoresis
Shortened PR interval
72
Artifact caused by too many appliances being plugged in to one outlet...
Electrical Interferrence
Wandering baseline
60-cycle interferrence
Broken recording
73
Artifact caused by poor lead connection, lotion on skin, or hair under electrode...
Somatic tremor
60-cycle interferrence
Wandering baseline
Electrical interferrence
74
Which is the correct sensitivity setting to create a 5mm standardization mark?
1
1/2
2
1/4
75
The atrioventicular valve on the right side of the heart.
Mitral Valve
Bicuspid Valve
Pulmonary Semilunar Valve
Tricuspid Valve
76
In which of the following locations should you place the V5 lead?
At the fifth intercostal space at the midclavicular line.
At the anterior axillary line on the same horizontal level as V4.
Halfway between V2 and V4.
At the fourth intercostal space, to the right of the sternal border.
77
Which is the correct lead placement for V5?
Anterior axillary line, 5th intercostal space
right of sternum, 4th intercostal space
Left of sternum, 4th intercostal space
Midaxillary line, 5th intercostal space
78
During stress test, patient reports fatigue and you observe the following rhythm. You should..
Notify the physician
administer rescue breathing
defibrillate the patient
begin chest compressions
79
Which of the following is the most accurate site for a temperature?
Tympanic
Oral
Rectal
Thermal Scan
80
This is an example of surgical history for a patient.
Pt exercises on a regular basis
Pt takes one aspirin per day
Pt had a tonsilectomy at age 3
Pt smokes a pack a day
81
The receiving chambers of the heart.
Venules
Ventricles
Aorta
Atria
82
MI can often be seen by the presence of what on the EKG?
physiologic q waves
pathologic q waves
m-shaped p waves
minor p waves
83
The QRS is too tall to fit on the paper. You should...
Change the paper speed to 25mm/sec
Change the gain to 2
Change the gain control to 1/2
Change the paper speed to 50mm/sec
84
The pumping chambers of the heart.
Venules
Aorta
Atria
Ventricles
