ICU必备课件1.ppt.ppt

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    ABG INTERPRETATION

    Debbie Sander PAS-II

    Objectives

    What is an ABG

    What Is An ABG?

    Acid/Base Relationship

    Case Study No. 1

    60 y/o male comes ER c/o SOB.

    Tachypneic, tachycardic, diaphoretic and

    Cyanotic. Dx acute resp. failure and ABG's

    Show PaCO2 well below nl, pH above nl,PaO2 is very low. The blood gas document

    Resp. failure due to primary O2 problem.

    Case Study No. 2

    Buffers

    Respiratory Component

    Metabolic Component

    Acid/Base Relationship

    Normal ABG values

    AcidosisAlkalosis

    Respiratory Acidosis

    Causes of Respiratory Acidosis

    Metabolic Acidosis

    Causes of Metabolic Acidosis

    Respiratory Alkalosis

    Causes of Respiratory Alkalosis

    Metabolic Alkalosis

    Causes of Metabolic Alkalosis

    How to Analyze an ABG

    Four-step ABG Interpretation

    Four-step ABG Interpretation

    Four-step ABG Interpretation

    Four-step ABG Interpretation

    ~ PaCO2 - pH Relationship

    ABG Interpretation

    ABG Interpretation

    Respiratory Acidosis

    Respiratory Alkalosis

    Metabolic Acidosis

    Metabolic Alkalosis

    What are the compensations?

    Mixed Acid-Base Abnormalities

    ABG Results

    Case study No. 4

    Case study No. 5

    Case study No. 6

    Case study No. 7

    Case No. 7 cont'd

    Case No. 7 cont'd

    Case study No. 8

    Case No. 8 cont'd

    Case No. 8 cont'd

    Case No. 8 cont'd

    Case study No. 9

    Case study No. 10

    Case No. 10 cont'd

    Take Home Message:

    It's not magic understanding ABG's, it just takes a little practice!

    Any Questions?

    References

    Practice ABG's

    Answers to Practice ABG's

    http://www.100md.com/html/200910/1680/7856.htm

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