Cardiac Pacing Test

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ICT2011
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90736
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Cardiac Pacing Test
Updated:
2011-06-15 15:12:51
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Cardiac Pacing Test
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Cardiac Pacing Test
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  1. What block has a prolonged PRI beyond 0.2 sec (200ms) and is termed as a conduction delay rather than a heart block?
    1st Degree AV Block
  2. What block has a progressive prolongation of PRI until QRS drops?
    2nd Degree AV Block Type 1 (Wekenbach)
  3. What block has intermitient dropped beats w/constant PRI and commonly progresses to 3rd Degree Block?
    2nd Degree AV Block Type II (Classic)
  4. What block has failure od depolarizations to pass from atria to the ventricles, and ventricles are paced independently from site below AV Node?
    3rd Degree AV Block (Complete)
  5. What type of pacemaker is used most commonly for AFib?
    VVI
  6. What type of pace maker has AV pacing w/no sensing?
    DOO (Magnet Mode)
  7. What type of pacemaker is AV sequential, non-Psynchronous pacing w/dual chamber sensing and dual chamber inhibition?
    DDI
  8. What type of pacemaker is dual sensing w/ventricular pacing and as 1 lead w/electrode w/ventricle and sensor in atrium?
    VDD
  9. What are the two benefits of AV pacing?
    • Physiological timing of AV valve closure
    • Improves Cardiac Output
  10. How many positions are there for Permanent Pacemaker Codes?
    5
  11. What position refers to the chambers being paced?
    Position I
  12. What position refers to the chambers being sense?
    Position II
  13. What position refers to pacemaker response of sensing?
    Position III
  14. What position refers to programmability of rate modulation?
    Position IV
  15. What position, rarely used, refers to antitachyarrthmia funciont?
    Position V
  16. What is a closely spaced bipolar electrode can be positioned across the anterosuperor portion of septal tricuspid valve leaflet in close proximity HIS Bundle and indicated by H spike on EKG?
    The HIS Bundle Electrogram
  17. List indications of permanent pacing.
    • Sick Sinus Syndrome
    • Heart Block
    • HIS Bundle Electrogram
    • Alternating BBB
    • Hypertensive Carotid sinus Syndrome
    • Neurocardiogenic syncope (Vasovagul Syncope)
    • Dilated cardiomyopathy
    • Special situations (Children w/CHD, Heart Transplants, Pause Dependent VTach)
    • Post MI
  18. List indication for temporary pacers.
    • AV Block w/MI
    • Right Heart Cath with LBBB
    • Anti-Tachycardia Therapy
    • Other Uses (Post cardiac surgery, bridge to permanent pacing, test for effiecny for permanent pacer)
  19. What is a unit of charge that can be negative or positive?
    Coulomb
  20. What is the unit of an electrical current that moves at a rate of 1 coulomb/sec?
    Amp
  21. What is the unit of electrical pressure that causes current to flow?
    Volt
  22. What is the opposition to flow of current?
    Resistance
  23. What is the unit of Resistance?
    Ohm
  24. What is Ohm's Law?
    V=I*R
  25. What is the fundamental unit of work or energy?
    Joule (J = V * I * Time)
  26. What is a unit of power or rate or work?
    Watt (1 Watt = 1 J/sec)
  27. What is the most commonly used battery that last 4 to 10 years?
    Lithium anode battery (battery life does not equal pacemaker life)
  28. What is the second most commonly used battery?
    Lithium iodine battery
  29. What battery is mostly used in AICD (Automatic Implantable Cardioverter Defibulator)?
    Lithium vanadium battery
  30. What are the advantages of Nuclear Powered battery?
    Long life
  31. What are the disadvantages of Nuclear Powered Battery?
    • Not cost effective
    • Radiation hazard
    • Rarely used
  32. Which battery can be externally charged?
    Cadmium Nickel battery
  33. What are the three styles of pacemaker leads?
    • Transvenous
    • Epicardial Screw in lead
    • Atrial J Lead
  34. What type of lead has two wires and current travels from negative terminal to the myocardium and back via positive lead?
    Bipolar Lead
  35. What type of lead has one wire and current travels to exposed tip (cathode) through myocardium and chestwall and back to metal wall of the pacemaker generator (anode)?
    Unipolar Lead
  36. What type of battery does a temporary pace maker use?
    Standard 9 Volt battery
  37. Define threshold.
    A minium electrical stimulus required to cause muscle contraction
  38. Define sensing.
    All modern pacers are designed to sense patients intrinsic heart rate.
  39. What term is used to describe the voltage is set high enough to stimulate the heart?
    capture
  40. What term is used to describe voltage gradually reduced until stimulation ceases?
    Loss of capture
  41. What term is used to describe voltage gradually increased until capture regained?
    Threshold
  42. What is the most commonly sensed cardiac event?
    Depolorization of the ventricles
  43. What are different types of permanent pacemaker programmibilty functions?
    • rate
    • pulse width
    • voltage
    • sensitivity circuit
    • noise sensing
    • refractory period
    • hysteresis (Greek for to "lag behind"
  44. What are different types of temporary pacemaker programmibility functions?
    • Rate
    • Energy Output
    • Sensistivity

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