Card Set Information

2011-08-03 17:59:24

Show Answers:

  1. where is lead V1 placed at?
    fourth intercostol space, left to the sternum
  2. where is lead V2 placed at?
    fourth intercostol space, right of the sternum
  3. where is lead V3 placed at?
    between V2 & V4. at a angle
  4. Where is lead V4 placed at?
    fifth intercostal space left midclavicular
  5. Where is lead V5 placed at?
    Fifth intercostol space anterior- axillary
  6. Where is lead V6 placed at?
    Fifth intercostol space, midaxillary
  7. What is the Purpose of the EKG?
    -used to record the electrical impulsses that produce the cardiac cycle.
  8. What is a electrocardiograph
    the machine used to record electrical impulses on the electriocardiograms
  9. What is Deflections/
    waves on the EKG that creates peaks and valleys
  10. How many Leads are used in the medical field?
    we only use 10 but we get 12 lead readings.
  11. Limb leads aka ...
    bipolar leads
  12. limb lead are placed on the arms and legs
    (opposite sides)
  13. leads are placed on
    deltoids and calfs
  14. Standard leads monitor
    2 limb leads
  15. What monitors one limb lead and 1 precordial midway between the other 2 limbs
    Augmented Voltage leads
  16. AVF stands for
    Augmented Voltage Foot
  17. AVL stands for
    Augmented Voltage Left
  18. AVR stands for
    Augmented Voltage Right
  19. Leads are
    electrodes placed on the body
  20. Precordial Leads aka
    Chest leads
  21. How many leads are placed on intercostal spaces of the chest
    6 unipolar leads (numbered V1-V6)
  22. The SA bundle Nodes conducts the
  23. Depolarization means
    shock to make atriums contract
  24. P wave
    • first electrical impulse of depolarization in the atrium.
    • small upward curve on tracing.
  25. Q wave
    impulse traveling from the atrium down the septum, first downward curve on tracing
  26. R wave
    • Large upward spike representing the impulse going through the left ventricle
    • -this shows how hard the ventricle has to pump to send the blood through the aorta to the body
  27. S wave
    Downward reflection and it represents impulse going through both of your ventricles
  28. T wave
    • upward curve!!
    • reflecting repolarization of the ventricles
  29. U wave
    • small upward curve seen after T wave
    • (not common)
  30. Repolorization means
    • heart getting ready to get shocked
    • (depolarization)
  31. 20 little boxes create big box
    4 big boxes creates 1 unit
  32. P-wave no bigger than two small boxes
    Q-wave. a flat line or a downward spike no bigger than 2 small boxes
    R-wave - should not be bigger than 2 big boxes (if bigger its abnormal)
    S-wave-should be no bigger than 3 small boxes
    Twave- no more than 2 small boxes height - and one small box wide
    width shows how long it takes to recharge.

    the higher the box the more intense the movement is
  33. Most common EKG artifact is
    wandering baseline
  34. Artifacts of EKG
    • alternating current interference(electrical pull)
    • Somatic interference
  35. mounting EKGs are for
    single channel EKG tracings only. Several type of mounts are slotted folders, and folders with self adhesive surfaces