Av Fistulas And Grafts Part 2

35 Questions | Total Attempts: 122

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Av Fistulas And Grafts Part 2

Part 2 of vascular


Questions and Answers
  • 1. 
    ________  ________ is one of the leading causes of mortality and morbidity in dialysis patients and is leading cause of _________________.
  • 2. 
    It is important that a properly functioning vascular access be maintained for a _______ term hemodialysis.
  • 3. 
    Graft failure can occur without any signs of clinical ________.
  • 4. 
    Causes of graft failure: * *_________ of graft, fistula or surrounding area is very common **________ at the arterial or venous anastomosis in graft ________ stenosis is more common *_________ of graft or fistula (clue: clot)
  • 5. 
    Ultrasound can be used for which of the following: (more than 1)
    • A. 

      Evaluate dialysis access

    • B. 

      Assess for defects, stenosis, or occlusion

    • C. 

      Monitor graft and fistula function

    • D. 

      Distal limb ischemia from steal syndrome

    • E. 

      Aneurysms or pseudoaneurysms

    • F. 

      Pre-op assessment

  • 6. 
    The closer to the graft is to the heart, the better it is.
    • A. 

      True

    • B. 

      False

  • 7. 
    With chronic dialysis, what are the 2 most common grafts?
  • 8. 
    Check all that apply to the typical areas of placement in loop grafts:
    • A. 

      Brachial artery-cephalic vein

    • B. 

      Brachial artery-axillary vein

    • C. 

      Brachial artery-median cubital vein

    • D. 

      Axillary artery-basilic vein

    • E. 

      Brachial artery-basilic vein

    • F. 

      Proximal brachial artery-axillary vein

  • 9. 
    A lesser used site for grafts is the _____ to the ____.  It is also rarely in the __________ vessels (used as last resort)
  • 10. 
    Grafts within the subclavian vessels tend to get easily ________ and _______ in this area can become potentially fatal leading to PE or stroke.
  • 11. 
    Check all that apply to straight grafts:
    • A. 

      Distal radial artery-cephalic vein

    • B. 

      Distal brachial artery-cephalic vein

    • C. 

      Distal radial artery-median cubital vein

    • D. 

      Distal radial artery-basilic vein near AC fossa

    • E. 

      Distal brachial artery - proximal basilic vein or axillary vein

  • 12. 
    Fistulas last longer than grafts.
    • A. 

      True

    • B. 

      False

  • 13. 
    Fistulas are ________ and are known for ______ term patency and ______ complication rates.
  • 14. 
    In regards to fistulas, this is a side to side type of connection?
  • 15. 
    The most common autologous fistula for dialysis is _______artery to ______ vein.
  • 16. 
    Check all that apply to the basic protocol for grafts:
    • A. 

      Inflow artery

    • B. 

      Outflow artery

    • C. 

      Arterial anastomosis

    • D. 

      Inflow vein

    • E. 

      Outflow vein

    • F. 

      Entire length of graft

    • G. 

      Venous anstomosis

  • 17. 
    Check all that apply to the basic protocol for fistulas:
    • A. 

      Outflow artery

    • B. 

      Inflow artery

    • C. 

      Venous anastomosis

    • D. 

      Arterial anastomosis

    • E. 

      Inflow vein

    • F. 

      Outflow vein

    • G. 

      Arterial venous connection

  • 18. 
    When fistulas are created it must ________. Veins need to toughen and expand to withstand the _____ pressure of dialysis. Flow becomes ____________.
  • 19. 
    Maturation of fistulas can take up to ___ to ___ weeks after creation.
  • 20. 
    Name another access that is used temporarily until the fistula is ready to be used:
  • 21. 
    With fistulas, the vein can feel lumpy and dilate due to increased pressures in the vein
    • A. 

      True

    • B. 

      False

  • 22. 
    This is palpable flow within the access (you feel vibration)
  • 23. 
    If there is no thrill felt, the graft is usually ________
  • 24. 
    Never take a _______  ________ on the arm of access, which could lead to failure
  • 25. 
    What is the range of frequencies (transducer) used for grafts or fistulas?
  • 26. 
    Evalutaion of an inflow artery should be of ______ resistance
  • 27. 
    Flow distal to anastomosis, should be of ______ resistance
  • 28. 
    You assess a graft or fistula for which of the following:
    • A. 

      Hematomas

    • B. 

      Clot

    • C. 

      Aneurysms

    • D. 

      Pseudoaneurysms

    • E. 

      Seromas or fluid collections

  • 29. 
    When measuring flow volume, the inside diameter or area of graft is measured in ______ (without color) and in ______ you sample the region from which the diameter was measured.
  • 30. 
    This is the measurement of instantaneous average or mean velocity over time
  • 31. 
    What are the units of flow volume (Q)?
  • 32. 
    What is the flow volume equation?
  • 33. 
    Flow volume is done only on:
  • 34. 
    Flow volumes cannot be done in _____ because size of vein is too small and easily change size with transducer pressure.
  • 35. 
    When speaking of graft flow volumes: poor dialysis is less than _______, the normal range is ____-____, and possible CHF is greater than _______.