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Welcome, eCureMe.com medical contents search March 21, 2010
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Mixed venous blood gases


  • Venous blood

  • pH: 7.33-7.43
  • Pco2: 41-51 mm Hg
  • HCO3-: 24-28 mm Hg
  • Pvo2: 35-49 mm Hg
  • Svo2: 60-80%

  • To assess the O2 supply and tissue O2 consumption
  • Svo2 is used to evaluate the response to nursing care

  • Svo2
    1. Anesthesia
    2. Cyanide toxicity
    3. High Fio 2
    4. Hypothermia
    5. Left-to-right shunt
    6. Neuromuscular blockade
    7. Relaxation
    8. Sepsis
    9. Sleep
    10. Vasodilatation

  • Svo2
    1. Anemia
    2. Anxiety
    3. Bleeding
    4. Cardiogenic Shock
    5. Congestive Heart Failure
    6. Fever
    7. Hyperthermia
    8. Hypovolemia
    9. Inadequate Fio 2
    10. Large burns
    11. Pulmonary disease
    12. Multiple Trauma
    13. Position changes
    14. Seizures
    15. Severe pain
    16. Shivering
    17. Suctioning

  • Inadequate perfusion
  • Poorly positioned pulmonary artery catheter











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