Patho 3

Card Set Information

Author:
cgordon05
ID:
17579
Filename:
Patho 3
Updated:
2010-05-03 18:44:42
Tags:
Respiratory Basic ABG
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Description:
Respiratory Basic and ABG
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  1. What is the principle component of surfactant?
    • phospholipids
    • especially DPPC
  2. What is the primary function of surfactant?
    • prevent alveolar collapse
    • decrease alveolar tension
  3. pH
    • 7.35 - 7.45
    • hydrogen ion concentration
    • ratio of base to acid
    • (HCO3-/0.03 x pCO2)
  4. pO2
    • 80 - 100
    • pressure exerted by dissolved oxygen in plasma
  5. O2 Sat
    • 95% or greater
    • percent of hemoglobin saturated with oxygen relative to total amount the hemoglobin could carry
  6. pCO2
    • 35 - 45
    • pressure or tension exerted by dissolved CO2 in blood
  7. HCO3-
    22 - 26
  8. Base excess
    • -2 to +2
    • # moles of acid (+ base excess) or # moles of base needed to add to 1 liter of blood to return pH to 7.4 and total CO2 of 25 mmol/L
  9. How is the majority of Co2 transported in the blood?
    (p.2)
    • HCO3- and H2CO3
    • (bicarb and carbonic acid)
  10. Total CO2
    HCO3- value + calculated dissolved CO2 gas (pCO2)
  11. Normal range for total CO2
    22 - 28 mEq/L

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