vent set up

Card Set Information

Author:
Anonymous
ID:
75831
Filename:
vent set up
Updated:
2011-03-29 00:18:30
Tags:
vent set up parameters
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Description:
initial and vent parameters
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  1. F
    8-12 Breaths/min
  2. Vt
    4-12 mL/kg IBW (6-10 initial)
  3. Ve
    5-10L (FXVt)
  4. inspiratory flow
    40-100lpm (40-60 initial)
  5. Ti
    0.8-1.2 sec
  6. PIP
    ~15cmH2O
  7. PEEP
    5-10cmH20
  8. Sensitivity
    • -0.5 - -2 cmH2O
    • 1-3 LPM
  9. FiO2
    .21 - 1.0
  10. Vt=
    inspiratory flow X inspiratory time
  11. normal pH
    7.35 - 7.45
  12. normal PaCo2
    35 - 45mmHg
  13. PaO2
    80 - 100mmHg
  14. HCO3-
    22-26 meq/L
  15. Hypoximia
    Mild
    moderate
    severe
    • 60-79
    • 40-59
    • <40
  16. calculate pH
    pH= 6.1 + log [hco3/(paco2 x 0.03)]
  17. O2 content
    CaO2= (1.34)(Hgb)(SaO2) + (PaO2)(0.003)
  18. alveolar air PaO2
    [(PB-47)(FiO2)] - PaCO2(1.25)
  19. desired F
    (Known F x known PaCO2)/ desired PaCO2
  20. desired Vt
    (known Vt x known PaCO2)/ desired PaCO2
  21. TCT
    • total cycle time
    • 60/F or Ti + Te
  22. Ti =
    Vt/inspiratory flow (Vi)
  23. CO2 transport

    3 ways
    • as HCO3 (70%)
    • as carbamenohemoglobin (23%)
    • in plasma
  24. desired FIO2
    desired PaO2 x known FIO2/ known PaO2
  25. *C to *F
    9/5 x *C + 32
  26. *F to *C
    5/9 (*F-32)

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