CVP exam II

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  1. Drains lymph from right side of head, neck, arm & part of right chest
    Right lymph duct
  2. Drains lymph from lower body & left side of head, upper chest & left arm
    thoracic duct
  3. change in velocity/ change in Pressure X initial volume
    - ability for vessels to stretch
  4. Flow = amnt substance/min divided by artery - vein
    - blood flow to a tissue/organ is based on input/output concentration & addition/removal of substances
    Fick principle
  5. C.O. = mg dye injected X 60/[avg. dye] X duration of curves in each ml

    flow = vol/time
    Indicator Dilution (Golds standard)
  6. momentary limb blood flow
  7. the ability for a vessel to stretch & hold volume
    - = change vol/ change in pressure or distensibility X initial vol
  8. inversely proportional to compliance & distensibility
    wall tone
  9. arterioles, metarterioles, precapilary sphincters
    - vasodil/constrict of precapillary resists vessels
    short term control of Blood flow (Q)
  10. change in tissue vascularity
    - angiogenin, vascular endothelial growth factor (VEGF)
    Long term control of Q
  11. as tissue uses up O2, vascular smooth m. cannot maintain constriction
    O2 demand theory (Old theory)
  12. Small peptides stim. growth of new vessels
    - e.g. angiogenic factor
    VEGF (vascular endothelial growth factor)
  13. up-regulated by stress activated endothelium
    - attract monocytes that invade arterioles
    MCP-1 (monocyte chemoattractant protein 1)
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CVP exam II
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