CV review & Visuals

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  1. automaticity
    cells ability to generate an impulse
  2. excitability
    non-pacemaker cells ability to respond to an impulse
  3. conductivity
    • cardiac cells ability to send an impulse to another cell
    • creates "P" wave & QRS complex
  4. contractility
    contraction of atrial and ventricular cells from electrical stimuli
  5. Which node begins conduction and creates the "P" wave
  6. Which node allows electrical stimulation to travel to ventricles and creates the P-R interval
    AV (gatekeeper)
  7. What causes a delay in conduction occur resulting in a widening of the QRS interval, made of purkinje fibers
    Bundel of his
  8. artifact
    muscle movement that appears on an EKG
  9. "P" waves are
    • sinus rhythm
    • atrial depolarization
  10. QRS complex is
    depolarization of ventricles
  11. an elevated ST segment indicates
    (fireman's hat)Image Upload
  12. T wave is
    repolarization of ventricles
  13. Image Upload
    Regular sinus rhythm
  14. Image Upload
    Sinus tachycardia
  15. Image Upload
    Sinus bradycardia
  16. Image Upload
  17. Image Upload
    • Atrial flutter ( sawtooth, more regular pattern than A-fib)
    • can't be seen w/out EKG
    • pulse feels normal
  18. Image Upload
    • PVC
    • compensatory pause after PVC to get SA node to provide P wave
  19. Image Upload
    Ventricular tachycardia
  20. Image Upload
    Ventricular fibrillation
  21. Image Upload
  22. What do we need to teach pt with dysrhythmias
    • Take pulse
    • avoid caffine
    • CPR
Card Set:
CV review & Visuals
2013-02-06 14:08:05
Med surg chapter 36

CV review & Visuals
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