O2

Card Set Information

Author:
levzahav9
ID:
227660
Filename:
O2
Updated:
2013-07-20 12:45:45
Tags:
oxygenation
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Description:
oxygenation
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  1. 3 Factors needed for resp. function
    • Ventilation
    • perfusion 
    • diffusion
  2. what stimulates people without COPD to breathe?
    CO2 levels
  3. what stimulates a pt with COPD to breathe?
    The hypoxic drive...O2 levels
  4. two ways O2 is carried in the blood
    • plasma measured by PaO2
    • oxyhemoglobin measured by SaO2
  5. t/f: In Carbon monoxide poisoning you get abnormally high SaO2 levels
    t
  6. How do you measure SaO2?
    pulse oximetry
  7. Factors that influence respiratory function
    • Level of wellness: respiratory disorders, CV disorders including left sided CHF
    • Developmental issues: scoliosis, obesity (there's a high correlation bt obesity and chronic bronchitis), aging
    • Meds: narcotics and analgesics → ↓RR
    • Lifestyle: sedentary lifestyle doesn't encourage alveolar expansion; cigarette smoking active and passive
    • Environment: Air pollution has high corr. with lung cancer; high altitudes = less O2. Dangerous for COPD who rely on hypoxic drive

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