study for CCMA

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  1. what is the most common type of artifact
    somatic tremor
  2. example of somatic tremor from disease
  3. one cardiac cycle takes approximately how long
    0.8 second
  4. cardiac cycle aka
    heart beat
  5. part of wave that indicates ventricular depolarization
    QRS complex
  6. another name for V lead is
  7. what does P wave represent
    atrial depolarization
  8. another name for atrial depolarizarion
    atrial contraction
  9. when the heart recovers and relaxes
  10. when does repolarization occur
    after contraction of heart muscle and the reestablishment of a polarized state
  11. contraction of cardiac cells
  12. how does depolarization occur
    with electrical activity from atria or ventricular contraction
  13. what does QRS wave represent
    ventricular contraction
  14. what does the T wave represent
    ventricular relaxation
  15. medical term for ventricular relaxation
    venticular repolarization
  16. which wave only occurs occasionally in some patients
    u wave
  17. what does the vertical line on the EKG represent
  18. what does the horizontal line on the EKG represent
  19. what is a baseline
    flat horizontal line between cardiac cycle
  20. what is one box equal to
    .04 sec and 1 mm
  21. what are 5 large squares equal to in time
    .2 sec
  22. what does BPM stand for
    beats per minute
  23. what is elctrolyte
    a conductive substance that contains moisture
  24. what forms does electrolyte come in
    gels, lotions, paste, presaturated pads and adhesive sensors
  25. why is electrolyte necessary
    because skin is a poor conductor of electricity
  26. what are electrodes
    a sensor that detects electrical impulse on the body surface
  27. what are electrodes made of
    metal or other conductive material
  28. what are lead wires
    metal wires carrying impulse from patient to machine
  29. how can older electrocardiograph machines be adapted or converted to operate with the current self, adhesive electrodes
    alligator clips over end of lead wire tips ordered from manufacturer
  30. how many sensors are on a standard EKG
  31. how many leads do the sensors record
  32. what are the sensors recording
    the electrical impulses on the body surface
  33. what are the four limb leads
    left leg, left arm, right leg, right arm
  34. which limb lead is called the "ground" or reference electrode
    right leg
  35. where on the limbs are the sensors placed
    fleshy , nonmuscular insides
  36. lead I records the electrical activity between the
    right arm and left arm
  37. lead II records the electrical activity between the
    right arm and left leg
  38. lead III records electrical activity between the....
    left arm and left leg
  39. which lead portrays the heart beat better then other leads
    Lead II
  40. Lead II aka
    rhythm strip
  41. the first 3 leads are also known as what type of lead
  42. leads iv, v, and vi are designated as what leads
    aVR, aVL and aVF
  43. these augmented leads are also known as what
  44. lead aVR records activity from
    Right Arm and Right Leg
  45. Lead aVL records activity from
    Left Leg and Left Arm
  46. lead aVF records activity from
  47. what does aVR, aVL and aVF stand for
    augmented voltage right, left and foot
  48. how long is each cardiac cycle
    0.8 seconds
  49. what does augmented mean
    added to
  50. how many sides does the heart have
  51. how many lobes does the heart have
  52. the skin is not a great conductor of _________
  53. electrolytes provide __________ and electrodes provide _______ to the conduction process
    moisture and metal
  54. what is a two sided pump the routes blood where it needs to go
    the heart
  55. ______ cells in the heart are able to conduct electricity
  56. artifacts are electrical __________
  57. what is it called when there is a discharge of electrical energy
  58. ECG is an
    graphic representation of the heart's electrical activity
  59. unipolar aka
  60. a series of x-rays of a blood vessel after injection of a radiopaque substance
  61. the part of the heart cycle in which the heart is in contraction
  62. the flat, horizontal line that separates the various waves of the ECG cycle
  63. chemical substance that enhances the conduction of electrical activity
  64. conversion of a pathologic cardia rhythm to normal sinus rhythm
  65. local and temporary lack of blood to an organ or a part because of obstruction of circulation
  66. procedure used to obtain cardia blood samples, detect abnormalities, and determine intracardiac pressure
    cardiac catheterization
  67. heated slender wire of the electrocardiograph that melts the wax off the ECG paper during the recording
  68. pertaining to the area on the anterior surface of the body overlying the heart
  69. procedures that do not require entering the body or puncturing the skin
  70. sensors used to conduct electricity from the body to the electrocardiograph
  71. to add or increase
  72. process of applying in sequence a portion of each of the 12 leads of the ECG recording onto a document placed in the patient's chart
  73. applications of electric current to the heart, directly or indirectly, to alter a disturbance in cardia rhythm
  74. mechanism in the electrocardiograph that changes the voltage into a mechanical motion or recording purposes
  75. having or pertaining to a one-pole process
  76. the normal period in the cardiac cycle during which the myocardial fibers lengthen, the heart dilates and the cavities all fill with blood
  77. one complete heartbeat
    the cardia cycle
  78. during an ultrasound procedure, this device picks up echoes and converts them to electrical energy
  79. an area of tissue in an organ or a part that becomes necrotic after cessation of blood supply
  80. amount, extent, size, abundance or fullness
  81. having equal electrical potentials, represented on the ECG as the baseline
  82. the first three leads are
    bipolar/standard leads
  83. the next group of leads recorded after bipolar are
  84. augmented/unipolar leads are after the ________ and designated
    bipolar, aVR, aVL, aVF
  85. repolarization takes place while the heart muscle
  86. a type of chest electrode that consists of a disposable adhesive sensor is known as
  87. one millivolt of cardia electrical activity will deflect the stylus exactly
    10 mm high
  88. a wandering baseline may be caused by
    lotions, creams or oils on the patient's skin
  89. where is SA node located
    the upper part of the right atrium
  90. SA node aka
    body's natural pacemaker
  91. what does the T wave represent
    ventricular repolarization/ ventricular relaxation
  92. baseline aka
  93. electrical activity that causes contraction is called
  94. electrical activity that causes relaxation is called
  95. name the artifacts
    somatic, ac interference, wandering baseline, interrupted baseline
  96. ex of somatic artifact
    patient humming
  97. ex of ac interference
    crossed lead wires
  98. ex of wandering baseline
    lotions, oils or cream on patient's skin
  99. interrupted baseline example is
    detached lead wire
  100. PAC
    premature atrial contraction
  101. PAC are experienced by _________
    healthy individuals
  102. ventricular fibrillation is seen in
    patient's experiencing a MI or patient's with existing cardiac disease
  103. ventricular fibrillation is __________________
    life threatening
  104. ventricular tachycardia can lead to
    death and fibrillation
  105. a common disturbance, or arrhythmia seen on ECG's are
    PVC, premature ventricular contractions
  106. lack of blood to an organ or part
  107. ECG paper is
    heat and pressure sensitive
  108. the graph is a
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study for CCMA
2013-06-19 05:47:16

ekg Study ccma
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