Applied Environmental Physiology

Card Set Information

Author:
frisbee
ID:
79335
Filename:
Applied Environmental Physiology
Updated:
2011-04-13 11:03:10
Tags:
Applied Physiology
Folders:

Description:
Clinical appl of hypoxia
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  1. Hypoxia
    Define hypoxia and possible causes
    • Insufficient oxygen to supply tissue needs.
    • Possible Causes; Hypovolemia, reduced capillarity, occluded arteries or arterioles, reduced cardiac output, impaired alveolar diffusion, suffocation/asphyxia, apnea, reduced barometric pressure, anaemia.
  2. Ischemia
    Define Ischemia and possible causes
    • Insufficient blood flow to supply tissue needs
    • Possible causes; hypovolemia, reduced capillarity, occluded arteries or arterioles, reduced cardiac output
  3. Clincal Hypoxia or Ischemia
    Hypovolemia - blood loss
    Ischemia
  4. Ruduced capillarity - (Cancer, rapid growth unsustainable)
    Ischemia
  5. Occluded arteries or arterioles
    Atherosclerosis
    Ischemia
  6. Reduced Cardiac Output
    Heart Failure
    Ischemia
  7. Impaired Alveolar Diffusion
    Chronic Lung Disease
    Hypoxia
  8. HIF
    Hypoxia Inducing Factor
    • Transciption factor
    • Responds to changes in Cell O2
  9. HIF and cell oxygen sensing

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