ECG Final

1. General day-to-day care and maintenance of the ECG machine includes P99

Cleaning the ECG machine

Stocking the supplies

Checking the paper supply

All of the above

2. What component are essential to perform an ECG?

Being familiar with ECG machine

Knowledge of basic principles of safety and infection control

Good communication skills

All of the above

3. Ways to reduce or prevent heart disease or stroke include

Avoiding tobacco

Being more active

Choosing good nutrition

All of the above

4. The electrocardiogram is a study of P 2

Coronary artery blood supply

Ejection fraction of the heart 射血分数心

Electrical activity within the heart

Muscle movement of the heart

5. The steps to performing an exercise electrocardiography include P193

Assembling and preparing the equipment

Verifying that he/she is properly prepared according to quidelines given the patient

Both of the above

Neither of the above

6. The P wave represents. P41

Atrial contraction

Atrial relaxation

Ventricular contraction

Ventricular relaxation

7. When estimating the heart rate with the 6-second method, you must located 6-seconds on a rhythm strip, count the number of complexes, and multiply by P70

10

60

5

15

8. A patient states " I don't want to be shocked with the electricity" while you are setting up a Holter monitor. Your best response is:

Don't worry. It won't hurt you

A Holter monitor only records your heart's activity and doen't give off any electricity

I'll have the doctor explain the procedure to you again

I have to get this done now. Please let me put these leads on you

9. Your responsibilities to care for a patient with complete heart block include P145

Observing the patient for symptoms of low cardiac output

Reporting any signs and symptoms to the licensed personnel

Initiating emergency procedures if needed

All of the above

10. The QRS complex represents P41

Atrial contraction

Atrial relaxation

Ventricular contraction

Ventricular relaxation

11. Identify the basic functions of the electrocardiograph. P60

Input

Signal processing

Output display

All of the above

12. An informed consent is required for an exercise electrocardiography. The informed consent implies that the patient understandes P190

The treatment and risks

Why the procedure is being performed

What the alternative treatments and risks are

All of the above

13. Identify the following rhythm: P156

Ventricular rhythm

Ventricular tachycardia

Ventricular fibrillation

Asystole

14. After recognizing artifact on the ECG tracing, you notice that the patient is oily and the electrodes will not stay on the chest during the monitoring. What should you do next? P93

Clean the skin with alcohol and gauze or an alcohol prep pad

Clean the skin, apply benzoin, or spray deodorant before applying electrodes

Reapply electrodes without any cleaning

None of the above

15. Each little box on the ECG paper horizontally represents P69

0.04 second

0.20 second

1mV

1 sencond

16. To obtain a 12-lead ECG tracing, you must apply how many electrodes to the patient? P53

8

12

10

3

17. The normal PR interval is P42

0.10-0.16 second

0.12-0.20 second

0.06-0.10 second

Greater than 0.12 second

18. The proper location to place the V1 lead is the P86

Fourth intercostal space, left sternal border

Fifth intercostal space at the midclavicular line

Fifth intercostal space, midaxillary line

Fourth intercostal space, right sternal border

19. The ECG waveform is indicative of

Electrical impulses through the heart

Abonrmal heart valve conditions

Contraction of heart muscles

Heart's pumping capability

20. Identify some of the topics nesessary to teach the patient prior to staring the ambulatory monitoring procedure. P218-219

Why the patient is having the test

Length of time the monitor will be on the patient

The patient should take sponge baths only

All of the above

21. The SA node will send an electrical impulse at a rate of P38

72-100 beats/minute

40-60 beats/minute

20-40 beats/minute

60-100 beats/minute

22. QRS duration measurement is essential to determine the time it takes for P41

Atrial contraction

Ventricular contraction

Ventricular relaxation

Atrial relaxation

23. The ST segment represents. P41

Atrial comtraction

Ventricular contraction

Time between ventricular contraction and beginning of relaxation

Time between atrial contraction and beginning of relaxation

24. Identify the following rhythm: P132

Atrial flutter as sawtooth pattern

Atrial fibrillation

Ventricular vibrillation

Supraventricular tachycardia

25. You have just received a new ECG machine at your place of employment. What are the essential components that you need to do prior to using the new ECG machine on a patient?

Practice one or two ECGs

Read the directions provided by the manufacturer

Become familiar with the particular machine

All of the above

26. Sinus bradycardia (SB) has the same criteria as sinus rhythm with the only difference being that the P124

Heart rate is faster

Heart rate is slower

PR interval measurement is greater than 0.12 second

QRS duration is within normal limits

27. How can the ECG technician maintain infection control during the performance of an ECG procedure? P89

Using universal precautions

Washing hands prior to the procedure

Wearing gloves if there is a risk of exposure to patient's blood or other body fluid's

All of the above

28. Who invented the first electrocardiograph? P4

Wilhelm Einthoven

Sir Thomas Lewis of London

Augusta Waller

Calm Arrhythmia

29. Diastole is the____________phase of the heart. P35

Ventricles squeezing

Contraction

Relaxation

Blood moving through the heart

30. What does the ST segment in the figure below indicate? P187

A normal ST segment if during exercise electrocardiography

That the heart medications are working

Myocardial ischemia 心肌缺血

Angina

31. As you are conducting a 12-lead ECG, a red line appears at the bottom of your ECG graph paper. What does this mean?

You have placed an electrode in the wrong position

The ECG paper is running low and needs to be replaced soon

The patient has moved during the ECG procedure and an invalid recording has occurred

Nothing. This is what occurs with each 12 lead ECG tracing

32. All of the following are types of leads from the 12 lead ECG except P55

Bipolar

Unipolar

Chest

Abdomen

33. The normal range of the PR interval is P42

0.12 to 0.20 seconds

0.06 to 0.10 seconds

0.10 to 0.20 seconds

Less than 0.12 seconds

34. In order to be able to interpret the information, the ECG machine will_______the recording in augmented leads P56

Increase

Decrease

Half the voltage

No change

35. Your patient asks questions about the reason for his ECG after you explain the procedure to him. Your next step would be to

Repeat the instructions and clarify his concerns

Perform the procedure any away

Ask someone else to answer his questions

Ask the doctor to explain the procedure

36. Determining the type of ECG rhythm the patient has, the ECG technician is required to evaluate the components of the ECG rhythm strip including all the following except

Regularity

Measurement of the U wave

Rate

PR interval measurement

37. Identify the types of Holter monitoring available for patients. P211 and 213

Telemetry

Transtelphonic - loop memory monitoring

Transtelephonic - post symptom event monitoring

All of the above

38. Leaving the patient's chart in a full waiting room while you help someone to the exam room could be considered

Slander

Libel

Acceptable practice

Breach of confidentiality

39. The signal processing occurs inside the ECG machine, and it P60

Amplifies the electrical impulse

Converts the impulse into mechanical actions on the display

Prepares the signal for transfer to the output display or printed report

All of the above

40. Blood returns to the heart via veins. The largest vein is the P32

Vena cava

Cava vena

Aorta

Subclavian vein

41. While the ECG technician is performing an ECG tracing, the patient has a seizure. What is the ECG technician's responsibility? P105

Stay with the patient and protect the patient from injury

Call for help and report the seizure

After the seizure, perform the ECG again and indicate "post-seizure"

All of the above

42. Which of the following is an abnormal symptom that should be recorded during ambulatory monitoring? P208

Cheestpain

Indigestion

Dizziness

All of the above

43. What do you need to teach the patient about the diary entries? P217

Record all activities

Record times of physical and emotional stress

Record all usual and unusual events sush as urination, bowel movements, sexual activities, etc.

All of the above

44. The procedure of preventing transfer of infection from one patient to another can be done by following P14 or 89

Safety precautions

Universal precautions

Contact isolation techniques

Droplet isolation techniques

45. What is the single most important procedure you can perform to prevent spread of infection? P18

Wearing gloves

Using universal precautions

Handwashing

Explaining the procedure to the patient

46. The quality of the heart to initiate an electrical impulse without being stimulated by another independent source is called P37

Excitability

Contractility

Conductivity

Automaticity

47. When preparing the patient for ambulatory monitoring, it is important to P220

Prepare the emotionally

Prepare the patient physically

Neither of the above

Both of the above

48. All of the following rhythms usually find the patient in situations requiring immediate emergency interventions except P149

Asystole

Ventricular fibrillation

Ventricular tachycardia

Premature ventricular contractions

49. Your patient asks you to explain the results of the exercise electrocardiography. Your response is to P188

Explain the procedure

Tell him/her to ask the nurse

Ignore the question

Refer him/her to the physician

50. Measuring the PR interval requires the ECG technician to measure the period of time represented by the P42

Beginning of the Q wave to the J point

Beginning of the Q wave to the beginning to the T wave

Beginning of the P wave to the beginning of the QRS complex

Beginning of the P wave to the end of the R wave

51. The normal QRS complex duration measurement is P42

0.12 to 0.2 seconds

Greater than 0.12 second

0.06 to 0.10 seconds

None of the above

52. Identify the health conditions that prevents patients from participating in exercise electrocardography: P193

Heart aneurysm 心脏动脉瘤

Uncontrolled disturbance of the heartbeat 失控的心跳紊乱

Unstable angina 不稳定型心绞痛

All of the above

Inflammation surrounding the heart or heart muscle

Severe anemia严重贫血

Uncontrolled hypertension

Congestive heart failure充血性心力衰竭

53. The ECG technician is placing chest leads on the child and there doesn't appear to be enough room to place the five chest leads on the left side of the chest. The ECG technician should P102

Squeeze the electrodes together

Cut the electrodes to make them fit

Move the V3 lead to the right side and indicate the change on ECG information

Adjust the paper speed to 50 mm/second

54. The purpose of ambulatory monitoring is to document the electrical activity in the heart and identify any abnormal heart behaviors when P217

Performing a treadmill exercise test in the doctor's office

The patient is lying on a bed or observation table

The patient assumes normal activities of living

None of the above

55. Who should always be present during an exercise electrocardiography? P192

Registered nurse

Physician

ECG technician

Cardiac technician

56. Reasons for performing an ECG include all of the following except to

Diagnose changes in heart rhythm

Determine amount of muscles damage to the heart

Monitor and evaluate individuals with heart conditions

Check for problems with the flow of electricity through the heart

57. Your patient has a cast on his lower left leg. The location of the limb electrodes is

Right leg electrode at the lower leg and left leg electrode at the inner thigh

Right leg electrode at the lower leg and lefte leg electrode on the top of the cast

At equal level on the thigh

The same as if the patient did not have a cast

58. The Einthoven triangle is formed by the following three limb leads P55

Right arm, left arm, right leg

Right leg, left arm, left leg

Right arm, left arm, left leg

None of the above

59. If you have a patient who can only sign with an "X", it is important to: P191

Have the family member sign and the patient sign

Leave the consent blank

Explain the procedure with a witness present and have the witness sign along with the X

Write the reason the patient only signed with an "X"

60. Identify the following rhythm: P154

Atrial fibrillation

Sinus rhythm

Bundle branch block

Agonal rhythm

61. Which of the following is a common stress test protocol? 196

Bruce

Modified Bruce

Naughton

All of the above

62. Asystole or a flat line occurs on the ECG tracing but your patient is talking to you after the procedure. What is the potential problem with the ECG setup? P96

Electrodes are dried out without any gel

A lead wire is loose

A lead wire has been switched

Any of the above

63. Identify the following rhythm: P124

Sinus bradycardia

Sinus rhythm

Sinus tachycardia

Ventricular bradycardia

64. The ECG technician's responsibility during an exercise electrocardiograph includes all of the following except: P5

Providing for safety

Educating and preparing the patient prior to the procedure

Weighing the patient prior to the testing

Instructing the patient to report symptoms

65. Regularity of the rhythm is determined by using calipers to analyze whether the complexes have a regular or irregular pattern. What are the complexes evaluated? P116

P-P

R-R

Both of the above

Neither of the above

66. What is the basic patient care and treatment for the rhythm pictured? P156

Check the patient and institute emergency treatment

Call your immediate supervisor

Find someone else to take care of the patient

Replace the electrodes

67. Before operating the ECG machine, make sure that you have done all of the following except:

Cleaning the bed or the examination table

Explain the procedure to the patient

Checking the equipment for proper functioning

Providing for safety and infection control

68. The steps in evaluating a pacemaker ECG tracing include all of the following except: P160

What are the regularity and rate of the paced rhythm?

Is atrial capture present?

Is there appropriate ventricular sensing occurring

What is the ratio of how many paced beats compared to own beats within 1 minute?

69. Atrioventricular pacing is similar to what characteristics of the heart? P118,160

Normal conduction pathway

Normal valvular function

Normal blood flow of the heart

None of the above

70. The ECG graph paper consists of time horizontally and voltage vertically. What is the time and voltage represented with 1 large box? P69

0.04 second and 0.1mV

0.20 second and 0.5mV

0.10 second and 0.4mV

0.50 second and 0.2mV

71. When performing an ECG, what procedures must you always follow to prevent spread of infection? P14 or 89

Contact precautions

Isolation techniques

Universal precautions

Standard precautions

72. During the procedure, you notice the patient to have a pale color skin, shortness of breath, and heavy amount of perspiration. You know that the patient is experiencing

A normal response to activity

No difficulties

A heart attack

A possible problem that needs to be reported to the physician

73. If a patient refuses to have an ECG performed, your next step in performing an ECG is to P83

Provide any information or reassurance the patient may need

Determine the cause of the refusal

Be sure to explain that the machine only records electricity and does not deliver electricity

Notify your supervisor

74. Which type of atrial ventricular block tends to progress quickly to third-degree AV block or complete heart block? P143

First-degree AV block

Second-degree AV block, Mobitz type I (Wenckebach)

Second-degree AV block, Mobitz type II (Classical)

Second-degree AV block, Mobitz type III

75. An ECG monitor technician's main responsibility is to

View the ECG tracings and alert the health care professional of an abnormal heart rhythm

Assist the physicians with invasive cardiovascular diagnostic tests

Perform ultrasounds of the blood vessels

Record the 12-lead ECG and prepare the report for the physician

76. Bundle branch block rhythm often has similarities to a sinus complex, with the distinguishing criteria of P148

PR interval > 0.20 second

QRS duration > 0.12 second

QRS duration< 0.12 second

PR interval < 0.12 second

77. The ECG tracing has a wandering baseline through leads I, II, III, aVR aVF, and aVL. What leads need to be assessed for proper application, tension on leads, and possible electrode replacement? P55

Limb leads

Chest leads

Arm limb leads only

All of the above

78. Electronic pacemakers function and are effective based upon the principle of P158

The fastest pacemaker of the heart will cause the blood flow

The fastest pacemaker of the heart will control the heart rate

The slowest pacemaker of the heart will control the heart beats

All extra electrical impulses control the heart

79. If you can't identify an R wave on the ECG tracing, which of the following waves would you use to determine the regularity of the ventricles? P116

Q and S wave junction

P and R wave junction

T wave

P wave

80. The two most common types of ambulatory monitoring are P210

Continuous and intermittent

Holter and 12-lead ECG

12-lead ECG and exercise electrocardiography

Continuous and 12-lead ECG

81. Which procedure does not require an informed consent with the patient signing a consent form? P198

Treadmill stress test

Echocardiogram 超声心动图

Holter monitor

12-lead ECG

82. The following rhythm occurred after the patient had recently been treated for a fast heart rate. What should you to do now about the patient?

No intervention is necessary

Notify your supervisor immediately

Check to make sure the patient is not experiencing problem with a low cardiac output

83. Often it is difficult to read the ECG tracing when the rate is fast. Where should you set the speed control rate to be able to interpret the ECG tracing more easily? P62

15 mm/sec

100 mm/sec

25 mm/sec

50 mm/sec

84. Identify the following rhythm: P145

Second degree AV block, Mobitz type I (Wenckebach)

Sinus bradycardia

Ventricular rhythm

Third degree AV block - complete heart block

85. Prior to performing an ECG, all of the following information needs to be identified on the requisition or consult except: P80

Patient's name and identification number

Location, date and time

Weight and height of patient

Patient's current position

86. Analyzing the shape of the P waves to see if they are all the same shape is to determine if P41

The atrial impulses caused the ventricle contraction

Atrial contraction occurred

The atrial current is moving in the same pathway

None of the above

87. Electrical safety is maintained while performing an ECG by all of the following except P90

Removing the plug from the electrical outlet by pulling it out by the prong connection

Ensuring that the bed or examination table is not touching the wall or any electrical equipment

Checking the insulation on the electrical cord for cracks or frays

Having the patient remove any electrical equipment from his body

88. You are recording an ECG tracing on a female patient who has had a mastectomy. Your responsibilties include P102

Documenting this information on the ECG tracing

Trying to adjust the lead placement similar to where the leads would be prior to the mastectomy

Move the limb leads to the patient's shoulders and thighs

Place the electrodes on the patient's back

89. The gain control is normally set at P63

10 mm/mV

20 mm/mV

5 mm/mV

25 mm/mV

90. The 12-lead ECG has been ordered "stat" or immediately. after you have all the electrodes on, the lead cable wires are attached. You notice that the lead wires are looped and crossing over each other. What is your next step? P88

Reattach the lead wires to follow the contours of the body so that they do not cross each other

Reposition the lead wires that are crossing each other

Perform the 12-lead ECG as ordered since it is a STAT procedure

Replace the electrodes and then reattach the lead wires

91. The ECG complexes are determined to occur in a regular pattern. What method do you use to best calculate the heart rate? P70

Six-second method

Count the number of boxes between the R-R complexes and divide that number into 1500

Both of the above

Neither of the above

92. If current moves away from the positive electrode on an ECG, the ECG waveform will have a(n)______deflection

Upward

Downward

Positive

Isoelectric

93. The time frame that an exercise electrocardiography takes is P191

15-20 minutes

45-60 minutes

1-11/2 hours

20-45 minutes

94. Identify the following rhythm: P138

Atrial fibrillation

Ventricular tachycardia

Ventricular fibrillation

Supraventricular tachycardia

95. Which type of monitoring requires the patient to activate the monitor while the patient is experiencing symptoms? P213

Transtelephonic monitor-loop-memory monitor

Transtelephonic monitor-post-symptom event monitor

24-hour Holter monitoring

None of the above

96. Oxygenated blood travels through the heart via the: P33

Pulmonary arteries

Peripheral venous system

Aorta

Coronary arteries

97. All of the following are uses for exercise electrocardiography except to: P187

Help diagnose the cause of chest pain

Screen for heart disease when no symptoms are present, especially in men over age 35

Help set limitations for an exercise program

Determine the function of the heart valves

98. Which of the following is an important consideration when applying electrodes to the skin of an elderly patient? P222

Use abrasive cleaners to prepare the skin

Apply the electrodes with firm pressure

Certain medications may make skin thin and fragile

All of the above

99. Which type of ambulatory monitoring is performed in a medical facility? P210

Telemetry

Transtelphonic

12-lead ECG

All of the above