by "Grog" (Alan W. Grogono), Professor Emeritus, Tulane University Department of Anesthesiology
Diagram Index: Diagram   Examples   Test Yourself   Report Structure   Large Diagram 

Interactive Acid-Base Diagram: PCO2 vs. SBE

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Acidosis              Metabolic              Alkalosis
        Alkalosis              Respiratory                    Acidosis
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pH =
PCO2 =
Bic =


  1. Keep the Page at the Top of the Window: The Mouse works when the page is at the top.
  2. Drag the Mouse to Your Chosen pH and PCO2: the diagram provides the corresponding text report.
  3. Color change. The color of the zone changes: acid - red; alkaline - blue.
  4. Typical Zones: The typical zones appear red or blue.
  5. Other Zones: The gaps between typical zones appear gray.
  6. Numerical Values: The boxes on the Right show the values for pH, PCO2, Standard Base Excess, and Bicarbonate.
  7. Report. The text below the diagram suggests a description when there are no complex problems.

Change Diagram:

  1. The Scale of the Diagram may be altered by changing the Scale Number.
  2. The Units may be changed from US to European (UK).

Large Diagram:

  1. Go to the Large Diagram Page.

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Acid-Base Tutorial
Alan W. Grogono
Small Logo Copyright Oct 2016.
All Rights Reserved
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