basic

Base Excess from ABG Calculator

Approximation: BE ≈ 0.93·(HCO₃ − 24.4) + 14.84·(pH − 7.4).

Estimate the standard base excess (SBE) from arterial pH and HCO₃ using a Siggaard-Andersen-style approximation: BE ≈ 0.93·(HCO₃ − 24.4) + 14.84·(pH − 7.4).

Priya Venkatesan By Priya Venkatesan
Published Last reviewed 1 min read

Inputs

mEq/L

Results

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Formula

BE ≈ 0.93·(HCO₃ − 24.4) + 14.84·(pH − 7.4)

In depth

Estimate the standard base excess (SBE) from arterial pH and HCO₃ using a Siggaard-Andersen-style approximation: BE ≈ 0.93·(HCO₃ − 24.4) + 14.84·(pH − 7.4).