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ECG Chapter 3

67 Questions
ECG Quizzes & Trivia
Questions and Answers
  • 1. 
    What will you need to know to prepare yourself for recording your first ECG?
    • A. 

      System measured machine

    • B. 

      Equipment and lead system

    • C. 

      Picture structure

  • 2. 
    If you attempt to record an ECG and no tracing is seen, what should you do?
    • A. 

      Check the lead wires to make sure they are placed correctly

    • B. 

      Check the lead wires make sure they connect to the machine

    • C. 

      Check the lead wires make sure they connect to the body

  • 3. 
    How many lead wires are used to obtain a 12-lead ECG tracing?
    • A. 

      12-leads

    • B. 

      10-leads

    • C. 

      14-leads

  • 4. 
    Name three augmented leads
    • A. 

      AVI, aVL, aVR

    • B. 

      AVO, aVT, aVL

    • C. 

      AVR, aVL, aVF

  • 5. 
    This ECG tracing was produced at a speed of  50 mm/sec. What should you do?
    • A. 

      Make the tracing as shown here, notify the health care provide who will be interpreting the tracing

    • B. 

      Make the tracing as shown here, don't need notify the health care provide who will be interpreting the tracing

    • C. 

      Make the tracing as shown here, I will be interpreting the tracing to the provide

  • 6. 
    When recording an ECG and the deflections or spikes of the tracing are not large enough, what should you do?
    • A. 

      Stay or don't need the adjust the gain

    • B. 

      Decrease or adjust the gain

    • C. 

      Increase or adjust the gain

  • 7. 
    A multichannel ECG monitors all 12 leads but usually records how many leads at one time?
    • A. 

      Six leads

    • B. 

      Three leads

    • C. 

      Twelve leads

  • 8. 
    What are some reasons that you may change the speed of the ECG tracing?
    • A. 

      Rhythm rate is too fast, can't clearly idenfity waves, because they are too close together per physician's order

    • B. 

      Rhythm rate is too slow, can't clearly idenfity waves, because they are too far away together per physician's order

    • C. 

      Rhythm rate is not clear, can't clearly idenfity waves, because they are too close together per physician's order

  • 9. 
    Which type of electrode is used when monitoring a patient that will be having serial ECG done?
    • A. 

      Silver disposable electrodes

    • B. 

      Reusable electrodes

    • C. 

      Mix electrodes

  • 10. 
    The physician places a stack of charts on top of an ECG report you just placed on his desk. What should you do?
    • A. 

      The report to the physician's attention and put next to such as alcohol, plastic, sunlight, and X-ray can be damage

    • B. 

      The report to the physician's attention and put on such as alcohol, plastic, sunlight, and X-ray can be damage

    • C. 

      The report to the physician's attention and away from such as alcohol, plastic, sunlight, and X-ray can be damage

  • 11. 
    What is the number of complexes in the above 6-second interval? What is the heart rate?
    • A. 

      Senven complexes, 70 heart rate

    • B. 

      Senven complexes, 50 heart rate

    • C. 

      Senven complexes, 90 heart rate

  • 12. 
    V1, V2, V3, V4, V5, V6
    • A. 

      Standard limb lead

    • B. 

      Augmented lead

    • C. 

      Precordial lead

  • 13. 
    • A. 

      Standard limb lead

    • B. 

      Augmented lead

    • C. 

      Precordial lead

  • 14. 
    lead I, lead II, lead III
    • A. 

      Augmented lead

    • B. 

      Standard limb lead

    • C. 

      Precordial lead

  • 15. 
    disposable sensors that receive the electrical activity of the heart
    • A. 

      Electrode

    • B. 

      Speed

    • C. 

      Input

  • 16. 
    changes the size of the ECG tracing
    • A. 

      Lead

    • B. 

      Gain

    • C. 

      Speed

  • 17. 
    data that is entered into an ECG machine
    • A. 

      Speed

    • B. 

      Input

    • C. 

      Output display

  • 18. 
    indicates time on the ECG tracing
    • A. 

      Mm

    • B. 

      MV

    • C. 

      Speed

  • 19. 
    conductor wire attached to the ECG machine
    • A. 

      Electrode

    • B. 

      Lead

    • C. 

      Speed

  • 20. 
    ability to record more than one lead tracing at a time
    • A. 

      Multi-channel

    • B. 

      Single-channel

    • C. 

      Signal processing

  • 21. 
    indicates voltage on the ECG tracing
    • A. 

      MV

    • B. 

      Mm

    • C. 

      Speed

  • 22. 
    displays the tracing for the electrical activity of the heart
    • A. 

      Input

    • B. 

      Output display

    • C. 

      Speed

  • 23. 
    amplifies the electrical impulse and converts to mechanical action
    • A. 

      Multi-channel

    • B. 

      Single-channel

    • C. 

      Signal processing

  • 24. 
    records one lead tracing at a time
    • A. 

      Multi-channel

    • B. 

      Signal processing

    • C. 

      Single-channel

  • 25. 
    controls the speed of the paper during an ECG tracing
    • A. 

      Speed

    • B. 

      MV

    • C. 

      Mm

  • 26. 
    ECG machines have three basic function. They are
    • A. 

      Input, signal processing, and output display

    • B. 

      Input, standardization, and output display

    • C. 

      Multichannel, single-channel, and signal processing

    • D. 

      Standardization, input display, and output display

  • 27. 
    To perform an ECG with accuracy, the best source to obtain specific information about the machine is
    • A. 

      The policy and procedure manual

    • B. 

      The manufacturer's directions

    • C. 

      Your supervisor

    • D. 

      Your texbook

  • 28. 
    The type of electrodes most commonly used are____________and are used_________________
    • A. 

      Disposable, more than once

    • B. 

      Reusable, more than once

    • C. 

      Disposable, once

    • D. 

      Reusable, once

  • 29. 
    "Bipolar leads" means that
    • A. 

      One electrode is placed on the chest and the machine arbitrarily places one behind the person

    • B. 

      Both positive and negative electrodes are placed on the patient's body

    • C. 

      Einthoven's triangle is not used

    • D. 

      One of the leg limbs is used while the machine augments the rhythm

  • 30. 
    What is the purpose of the LCD display?
    • A. 

      To allow entry and display of patient information

    • B. 

      To show the results of the ECG

    • C. 

      To sound alarms and errors

    • D. 

      To assist the patient to understand the procedure

  • 31. 
    The "multichannel ECG" indicates that
    • A. 

      You enter all the data into the machine prior to running a tracing

    • B. 

      Three or more leads are recorded at one time

    • C. 

      You do not have to mount each lead separately

    • D. 

      All of the above

  • 32. 
    What is the standard paper speed?
    • A. 

      25 mm/sec

    • B. 

      50 mm/sec

    • C. 

      0.25 mm/sec

    • D. 

      0.50 mm/sec

  • 33. 
    Which of the following is not a type of lead?
    • A. 

      Standard

    • B. 

      Augmented

    • C. 

      Input

    • D. 

      Precordial

  • 34. 
    Artifact filter helps obtain a clear ECG tracing by
    • A. 

      Reducing artifact or abnormal marks on the ECG tracing

    • B. 

      Always ensuring accurate readings by the computer

    • C. 

      Always recognizing that the patient has a pacemaker

    • D. 

      All of the above

  • 35. 
    computerized interpretation
    • A. 

      Can be used for actual diagnostic interpretation

    • B. 

      Never has to be validated by a physician

    • C. 

      Must always be validated by a physician

    • D. 

      None of the above

  • 36. 
    The horizontal reading on the ECG paper represents__________________, and the vertical readings represent__________
    • A. 

      Voltage, time

    • B. 

      Time, height

    • C. 

      Time, voltage

    • D. 

      Voltage, millivolts

  • 37. 
    Which lead tracing must be augmented by the ECG machine to be able to see the different ECG waveforms?
    • A. 

      Lead I

    • B. 

      Lead II

    • C. 

      Lead V6

    • D. 

      Lead aVF

  • 38. 
    The Einthoven triangle is formed by using the following placement sites.
    • A. 

      Right arm, left arm, left leg

    • B. 

      Right arm, left arm, right leg

    • C. 

      Right arm, middle of chest, left leg

    • D. 

      None of the above

  • 39. 
    five heavy lines or boxes
    • A. 

      1 second

    • B. 

      0.04 second

    • C. 

      0.2 second

  • 40. 
    one vertical heavy line or box
    • A. 

      0.2 second

    • B. 

      0.04 second

    • C. 

      1 second

  • 41. 
    smallest ventical line or box
    • A. 

      1 second

    • B. 

      0.04 second

    • C. 

      0.2 second

  • 42. 
    left leg (LL)
    • A. 

      Green

    • B. 

      White

    • C. 

      Black

    • D. 

      Red

  • 43. 
    right arm (RA)
    • A. 

      Green

    • B. 

      White

    • C. 

      Black

    • D. 

      Red

  • 44. 
    right leg (RL)
    • A. 

      Green

    • B. 

      White

    • C. 

      Black

    • D. 

      Red

  • 45. 
    Left arm
    • A. 

      Green

    • B. 

      White

    • C. 

      Black

    • D. 

      Red

  • 46. 
    When you start to perform an ECG on a patient, you notice a red line along the bottom of the ECG paper. What should you do?
    • A. 

      It shows the paper is runing out, I should change paper before performing next ECG

    • B. 

      It shows something wrong in the ECG machine, I should check the machine before performing next ECG

    • C. 

      It shows normal on the ECG machine, I shouldn't need to worry about it

  • 47. 
    Whe preparing to do an ECG, you find an open package of disposable electrodes on top of the ECG cart. Would you use these electrodes? Why or why not?
    • A. 

      Check the expiration day, and dry out, if not expired and not dry out, I would use them first

    • B. 

      Use them first, since they on top of the ECG cart

    • C. 

      Doen't matter either use them or later

  • 48. 
    You are preparing to attach the electrodes and lead wires for a 12-lead ECG. You are unable to read the letters on each of the lead wires. You place the electrodes and lead wires, but when you run the tracing it looks like a bunch of scratches. What do you think the problem is and how would you solve it?
    • A. 

      Pobably attached lead wires incorrectly. check the color and manufecturer's direction to indentify the correct color

    • B. 

      Maybe has someting wrong on the ECG machine and check manufecturer's manual

    • C. 

      Doen't matter the physician still can read it

  • 49. 
    When performing a 12- lead ECG, you notice that the tracing line is very thick and hard to view. In addition, one of the leads does not record properly. What would you do?
    • A. 

      Maybe has someting wrong on the ECG machine and check manufecturer's manual

    • B. 

      Chech the stylus control, turn the heat down, it producing a inner line. machine must be standardized before use. If new machine check LCD display to iddentify the problem or check manufcture's manual

    • C. 

      Check the stylus control, turn high the heat so the line is thinner

  • 50. 
    How is the 12-lead ECG recorded?
    • A. 

      Only by 10 lead wires: six on the chest and four on the on the limbs or shoulders and lower abdomen.

    • B. 

      8 lead wires: five on the chest and five on the limbs

    • C. 

      10 lead wires: seven on the chest and three on the limbs or shoulders and lower abdomen

  • 51. 
    When should you follow Universal Precautions?
    • A. 

      Never

    • B. 

      Sometimes

    • C. 

      At all times

    • D. 

      Every other patient

  • 52. 
    Why do we clean lead areas?
    • A. 

      So it doesn't dusty: use soft cloth moistened with acetone

    • B. 

      For the best results: use soft cloth moistened with disinfectant

    • C. 

      To keep it from breaking: use soft cloth moistened with ether

  • 53. 
    What is Code Blue and why are the wires left attached?
    • A. 

      Code Blue is urgent usually done in the after noon. The wires are left to check on the heart once in a while.

    • B. 

      Code Blue is for care that can be anytime. The wires are left so they don't have to take it off later.

    • C. 

      Code Blue is for immediate ECG when someone has chest pain or change of heat rhythm usually done in the morning. The wires are left attached to see how the heart is over time.

  • 54. 
    How to maintain infection control?
    • A. 

      Beaware of airborne, droplet, and contact precautions

    • B. 

      Beaware of eye contact precautions

    • C. 

      Beaware of nothing

  • 55. 
    What is the lead involvement of the Einthoven triangle?
    • A. 

      Lead I: a positive wave from the right arm to the left arm. Lead II: a positive wave from the right arm to the left leg. Lead III: is from the left arm to the left leg.

    • B. 

      Lead I: from the left leg to the left arm . Lead II: from the left arm to the right leg. Lead III: from the right arm to the right leg.

    • C. 

      There are no lead involvements

  • 56. 
    What are the types of lead?
    • A. 

      Bipolar: it traces two electrical currents at once. Unipolar:increases in size and it traces only one electrode

    • B. 

      Polar: it traces five electrical currents at once. Bipolar: it traces one electrical current

    • C. 

      There is only one type of lead

  • 57. 
    What happens when there is flat line?
    • A. 

      Check the patient first, if the patient Ok than check the electrodes and lead wires, if the patient not respond tread the emergency

    • B. 

      At all times when you see this the patient died

    • C. 

      Take the patient to the emergency room right away

  • 58. 
    What do you do when a patient has a seizure during the ECG?
    • A. 

      You hold them down and then call for help and report the seizure. You keep doing the ECG eventhough there is a seizure

    • B. 

      Stay with him or her, protect the patient from injury, don't restrain the patient, call for help and report the seizure. When the seizure is over do ECG and with post seizure on the ECG strip

    • C. 

      You leave the room right away and let them be by themselves. You don't need to get help just wait until it is over

  • 59. 
    Define: AC (alternating current) interference
    • A. 

      People walking near the ECG machines

    • B. 

      Moving of the muscles making unwanted markings on the ECG

    • C. 

      Unwanted markings on the ECG caused by other electrical current sources, dirty electrodes

  • 60. 
    Define: Speed
    • A. 

      A control on the ECG machine that regulates how fast or slow the paper runs during the tracings normal setting is 25mm/sec

    • B. 

      How fast the heart beat is

    • C. 

      Try to make the heart beat as fast as you can

  • 61. 
    Define: Gain
    • A. 

      To make someone gain weight for an ECG test

    • B. 

      A control on the ECG machine that increases or decreases the size of the ECG tracings, normal setting is 10mm/mV

    • C. 

      Help a patient gain heart beat

  • 62. 
    When do we reverse the lead placement to the right side?
    • A. 

      When there is dextrocardia, when the organs in the chest are on the opposite or right side of the chest

    • B. 

      Pextrocardia, when the organs stay on the left side but you want to check what is on the right side

    • C. 

      No one has a heart on the opposite side

  • 63. 
    What do you do for a Pediatric ECG?
    • A. 

      There is no Pediatric ECG

    • B. 

      This is used to the elderly

    • C. 

      Don't use hard words with the children, let the parent come with the child if they want, tell the child you are taking a picture to keep them not moving, set the speed to 50mm/sec for the fast heart beats, and move the V3 lead to the right side of the chest

  • 64. 
    • A. 

      True

    • B. 

      False

  • 65. 
    Which of the ECG controls can be used to reduce artifact? Is it antifact filter?
    • A. 

      True

    • B. 

      False

  • 66. 
    Should be set the stylus to standardization to avoid smearing and bleeding
    • A. 

      True

    • B. 

      False

  • 67. 
    The silver electrodes are kept on the patient who frequent ECG and checked daily
    • A. 

      True

    • B. 

      False