Taber's Medical Dictionary
base excess
The difference between the normal and the actual buffer base concentration in a blood sample when titrated by strong acid at pH = 7.40 and Pco 2 = 40 mm Hg. The base excess is usually determined indirectly using measured values for pH and Pco 2 and then calculated using known relationships.
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Citation
Venes, Donald, editor. "Base Excess." Taber's Medical Dictionary, 25th ed., F.A. Davis Company, 2025. Taber's Online, www.tabers.com/tabersonline/view/Tabers-Dictionary/747947/all/base_excess.
Base excess. In: Venes DD, ed. Taber's Medical Dictionary. F.A. Davis Company; 2025. https://www.tabers.com/tabersonline/view/Tabers-Dictionary/747947/all/base_excess. Accessed April 18, 2026.
Base excess. (2025). In Venes, D. (Ed.), Taber's Medical Dictionary (25th ed.). F.A. Davis Company. https://www.tabers.com/tabersonline/view/Tabers-Dictionary/747947/all/base_excess
Base Excess [Internet]. In: Venes DD, editors. Taber's Medical Dictionary. F.A. Davis Company; 2025. [cited 2026 April 18]. Available from: https://www.tabers.com/tabersonline/view/Tabers-Dictionary/747947/all/base_excess.
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