Base excess, blood gas

Diagnostic Use

Base excess (also known as base deficit) is a calculated parameter included with blood gas results.

Base excess refers to the amount of base that would need to be added or taken away in order to normalise the pH, assuming that the pCO2 of the sample was normal. It is an indirect marker of the metabolic component of the acid-base disorder.


Core Biochemistry

Delphic Registration Code



BE, base deficit

Turnaround Time

60 minutes

Test Code