| Winters’ Formula for Metabolic Acidosis Compensation |
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Calculation(s) used
Winter's formula:
Expected pCO2 = 1.5 * HCO3- + 8 +/- 2
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Notes
Winter's formula is used to
calculate the patients expected
pCO2 value.
This is then compared with the patients actual (measured) pCO2...
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If the measured pCO2
is higher than calculated this indicates Primary Respiratory acidosis.
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If measured
pCO2 is lower than
calculated this indicates Primary Respiratory acidosis.
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If the values are
similar then Respiratory compensation is deemed adequate.
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References
1. Acid-Base Disorders: Acid-Base Regulation and Disorders: Merck Manual Professional
[Online] http://www.merckmanuals.com/professional/sec12/ch157/ch157b.html
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