Arterial Blood Gas AnalysisVelia Marta Antonini, Parma University HospitalDepartment of Anesthesia and Intensive Care
1°  Gas Exchange andOxygenation evaluation       Velia Marta Antonini, Parma University Hospital - Department of Anesthesi...
PaO2/PaCo2     tension = Pp                    activity of                    unbounded                    moleculesVelia ...
PaO2        don’t forget           FiO2!Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Int...
PaO2 /FiO2                      ratioVelia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intens...
HbVelia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
O2 blood content                                                                         + CaO2 = (Hb x SaO2 x 1.34)+PaO2 ...
O2 delivery                                                              + DO2 = CI x CaO2 CI = Cardiac Index = CO/BSA    ...
O2 uptake frommicrocirculation                                                                           + VO2 = CO   *   ...
O2 extraction ratio O2ER = VO2/DO2 x 100                                                                          +VO2 = D...
if   Hb/SaO2                      = constant       Sv/SvcO2...         Velia Marta Antonini, Parma University Hospital - D...
if   Hb/SaO2                      = constant       Sv/SvcO2...         Velia Marta Antonini, Parma University Hospital - D...
PaCo2Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
2°     Acid-Base      Balance     Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive...
PaCo2                    pH =                 -log10[H+]Velia Marta Antonini, Parma University Hospital - Department of An...
HCO3                                               -Be = base excessVelia Marta Antonini, Parma University Hospital - Depa...
balance between...PCO2[HCO3 -][H+] in mEq/L =24 x (PCO2 / [HCO3 -] )       Velia Marta Antonini, Parma University Hospital...
CO2 + H2O             H2CO3     H2CO3                   H+           + HCO3                            -        Velia Mart...
3° electrolytes and      lactate     Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intens...
electrolytesVelia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
metabolism?Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
temperature...Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
pHVelia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
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Abg analysis

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  • Abg analysis

    1. 1. Arterial Blood Gas AnalysisVelia Marta Antonini, Parma University HospitalDepartment of Anesthesia and Intensive Care
    2. 2. 1° Gas Exchange andOxygenation evaluation Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    3. 3. PaO2/PaCo2 tension = Pp activity of unbounded moleculesVelia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    4. 4. PaO2 don’t forget FiO2!Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    5. 5. PaO2 /FiO2 ratioVelia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    6. 6. HbVelia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    7. 7. O2 blood content + CaO2 = (Hb x SaO2 x 1.34)+PaO2 x 0.003) CvO2 = (Hb x SvO2 x 1.34)+PvO2 x 0.003) Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    8. 8. O2 delivery + DO2 = CI x CaO2 CI = Cardiac Index = CO/BSA Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    9. 9. O2 uptake frommicrocirculation + VO2 = CO * (CaO2 - CvO2) VO2 = CO x 1.34 x 10 x Hb x(SaO2 - SvO2) Fick principle Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    10. 10. O2 extraction ratio O2ER = VO2/DO2 x 100 +VO2 = DO2 x O2ER ! O2ER normal value 20-30% Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    11. 11. if Hb/SaO2 = constant Sv/SvcO2... Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    12. 12. if Hb/SaO2 = constant Sv/SvcO2... Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    13. 13. PaCo2Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    14. 14. 2° Acid-Base Balance Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    15. 15. PaCo2 pH = -log10[H+]Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    16. 16. HCO3 -Be = base excessVelia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    17. 17. balance between...PCO2[HCO3 -][H+] in mEq/L =24 x (PCO2 / [HCO3 -] ) Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    18. 18. CO2 + H2O H2CO3 H2CO3 H+ + HCO3 - Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    19. 19. 3° electrolytes and lactate Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    20. 20. electrolytesVelia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    21. 21. metabolism?Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    22. 22. temperature...Velia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care
    23. 23. pHVelia Marta Antonini, Parma University Hospital - Department of Anesthesia and Intensive Care

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