ECG

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Author:
micki_mcbride
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68700
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ECG
Updated:
2011-02-24 13:51:15
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ECG
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UF cardiopulm ECG info from chapters in ECGs Made Easy
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  1. The pressure or resistance against which the ventricles must pump to eject blood
    Afterload
  2. Occlusion of this vessel has been referred to as the “widow maker” b/c of its association with sudden death
    L main coronary artery
  3. A repetitive pumping process that includes all of the events associated with the flow of blood thru the heart
    Cardiac cycle
  4. Blood flows from the R atrium thru the ___ valve into the R ventricle
    Tricuspid
  5. The amt of blood pumped into the aorta each minute by the heart
    Cardiac output
  6. A double walled sac that encloses the heart and helps protect it from trauma and infection
    Pericardium
  7. A positive___ effect results in an increase in myocardial contractility
    Inotropic
  8. Blood flows from the L atrium thru the ___ valve into the L ventricle
    Bicuspid/Mitral
  9. Specialized nerve tissue located in the internal carotid arteries and the aortic arch that detects changes in blood pressure
    Baroreceptors
  10. The largest vein that drains the heart
    Coronary sinus
  11. Coronary artery that supplies the SA node and AV node in most of the population
    Right coronary artery
  12. This results when the heart’s demand for oxygen exceeds its supply from the coronary circulation
    Myocardial ischemia
  13. A neg ___ effect refers to a decrease in heart rate
    Chronotropic
  14. Sensors in the internal carotid arteries and aortic arch that detect changes in the concentration of hydrogen ions (ph)
    Chemoreceptors
  15. The amt of blood flowing into the R atrium each minute from the systemic circulation
    Venous return
  16. Represents total ventricular activity-the time from ventricular depolarization to repolarization
    QT interval
  17. Intrinsic rate of AV junction
    40-60 BPM
  18. Ability of cardiac muscle cells to respond to an external stimulus
    Excitability
  19. Extent to which a cell is able to respond to a stimulus
    Refractoriness
  20. Movement of ions across a cell membrane in which the inside of the cell is restored to its negative charge
    Repolarization
  21. Intrinsic rate of ventricles
    20 to 40 BPM
  22. Working cells of the myocardium that contain contractile filaments
    Myocardial cells
  23. Corresponds with the onset of the QRS complex to the peak of the T wave
    Absolute refractory period
  24. Mvmt of ions across a cell membrane causing the inside of the cell to become more positive
    Depolarization
  25. Specialized cells of the heart’s electrical conduction system capable of spontaneously generating and conducting electrical impulses
    Pacemaker cells
  26. Intrinsic rate of SA node
    60 to 100 BPM
  27. Surface of the Left ventricle viewed by leads II, III, and aVF
    Inferior
  28. Lead type: I, II,III
    Bipolar limb leads
  29. Corresponds with the down slope of the T wave
    Relative refractory period
  30. Surface of the Left ventricle viewed by leads I, aVL, V5, and V6
    Lateral
  31. Measured on the horizontal axis of ECG
    Time (0.04 sec/box)
  32. Lead type: aVR, aVL, aVF
    Unipolar limb leads
  33. Measured on the vertical axis
    Amp/Voltage (1 mm/box)
  34. Common dysrhythmia asso with respiratory rate
    Sinus arrhythmia
  35. Appearance of P waves that originate from the SA node
  36. Positive (upright) in lead II, one precedes each QRS
  37. Rate asso with a sinus bradycardia
  38. Less than 60 BPM
  39. If the SA node fails to generate an impulse, the next (escape) pacemaker that should generate an impulse
  40. AV junction
  41. Dysrhythmia with a pause that is the same as (or an exact multiple of) the distance between two other P-P intervals
  42. Sinoatrial (SA) block
  43. Normal rate for a sinus rhythm
  44. 60-100 BPM
  45. Pacemaker with an intrinsic rate of 20-40 BPM
  46. Ventricles
  47. Dysrhythmia with a pause of undetermined length that is not the same distance as other P-P intervals
  48. Sinus arrest
  49. Normal QRS duration in an adult
  50. <0.10 sec
  51. Updated term for wandering atrial pacemaker
  52. Multiformed atrial rhythm
  53. The most common preexcitation syndrome
  54. Wolff-Parkinson-White syndrome
  55. Atrial rate asso with type I atrial flutter
  56. 250-350 BPM
  57. Consequence of decreased ventricular filling time
  58. Decreased stroke volume
  59. Type of meds: Verapamil, diltiazem
  60. Calcium channel blocker
  61. Type of med: Digoxin
  62. Cardiac glycoside
  63. ECG characteristic of nonconducted PAC
  64. Early P wave with no QRS following it
  65. Type of med: Adenosine
  66. 1st line med used for most types of PSVT
  67. Atrial rate asso with atrial fib
  68. 400-600 BPM
  69. Type of med: Esmolol, atenolol, metoprolo, propranolol
  70. Beta-blocker
  71. Term referring to the sudden onset or cessation of a dysrhythmia
  72. Paroxysmal
  73. Ventricular rhythm may be reg or irreg, waveforms resembling teeth of a saw or picket fence before QRS
  74. Atrial flutter
  75. Early beat initiated by an irritable atrial site
  76. Premature atrial complex
  77. Irregularly irregular ventricular rhythm, no identifiable P waves
  78. Atrial fib
  79. Before elective cardioversion, prophylactic tx with___ is recommended for the pt in atrial fib
  80. Anticoagulants
  81. Impulses originating from a source other than the SA node
  82. Ectopic
  83. Name given to a dysrhythmia that originate in the AV junction with a ventricular rate btw 61-100 BPM
  84. Accelerated junctional rhythm
  85. ____ toxicity/excess is a common cause of junctional dysrhythmias
  86. Digitalis

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