ARDS WKST

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Anonymous
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50384
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ARDS WKST
Updated:
2010-11-18 03:45:01
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ARDS WKST
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ARDS WKST
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  1. type of pulm edema seen in ARDS
    non-cardiogenic
  2. is non-cardiogenic cause by heart failure
    is not
  3. in ards, lung compliance inc/dec
    decrease
  4. dec compliance causes lungs to become more
    stiff
  5. why lung compliance changes in ARDS (3)
    inc in alveolar-cap permeability causes a dec in surfactant causing alveolar collapse (atelectasis)

    hyaline membrane formation

    alveolar consolidation
  6. hypoxemia that responds poorly to supplemental oxygen administration is termed:
    refractory hypoxemia
  7. treatment for ARDS
    • treatment of precipitative problem
    • provide adequate tissue oxygenation
    • provide adequate nutritional oxygenation
  8. PCWP in ARDS will most likely be
    normal
  9. static compliance provides info about the
    stiffness of the lungs and chest wall
  10. static comp values are often as low as
    15-20
  11. increase ppl, static compliance =
    decreases
  12. relationship btwn ppl pressure and static lung comp is
    inverse
  13. ratio of carbon dioxide to oxygen consumed is termed
    respiratory quotient
  14. what makes RQ high
    carbohydrates
  15. what makes RQ low
    fats and proteins
  16. what RQ is more ideal for ARDS pt?
    low RQ
  17. most common etiologic factor associated with the development of ARDS
    sepsis
  18. ppl pressure should be monitored in an attempt to keep the value less than
    30
  19. ppl pressure less than 30 helps by reducing the risk of
    barotrauma
  20. mech ventilation strategies in ards includes
    • pressure control mode
    • inverse i:e ratio
    • high rr, low vt
  21. goal of this strategy is to dec high airway pressures, reduce over distension of the lungs, and dec rish of barotrauma
    pressure control mode
  22. used in conjuction w/ pressure control to allow more time for inspiration thereby increasin alveolar contact time w/ oxygen
    inverse i:e ratio
  23. decrease high airway pressures, reduce overdistension of the lungs, and decrease risk of barotrauma while maintaining adequate min vent
    high rr, low vt
  24. level of peep at which oxygenation improves w/out compromising cardiac output
    optimal peep
  25. level of peep in which a pa02 of >60 is achieved on an fi02 of <60
    optimal peep
  26. measure of the partial pressure of oxygen in mixed venous blood and is an indication of oxygen consumption by the body is termed as
    pv02
  27. normal values of pv02
    35-45
  28. chest radiograph findings of a pt w/ ARDS (2)
    • ground-glass appearance
    • increased opacity
  29. use of small vt or inverse i:e ratio to keep the ppl pressure less than 30 may result in hypercapnea but is acceptable to have hypercapnea as long as the pt's pH is greater than 7.20
    permissive hypercapnea

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