Acid-Base Equilibrium (also known as Acid Base Equilibrium, Equilibrium, Acid-Base): The balance between acids and bases in the BODY FLUIDS. The pH (HYDROGEN-ION CONCENTRATION) of the arterial BLOOD provides an index for the total body acid-base balance.

NIH MeSH · D000136Phenomena and Processes

Acid-Base Equilibrium

Also known asAcid Base Equilibrium · Equilibrium, Acid-Base · Acid-Base Balance · Acid Base Balance · Balance, Acid-Base · Anion Gap · Anion Gaps · Gap, Anion · Gaps, Anion

Definition

The balance between acids and bases in the BODY FLUIDS. The pH (HYDROGEN-ION CONCENTRATION) of the arterial BLOOD provides an index for the total body acid-base balance.

MeSH classification

  • G02.111.007
  • G02.300.176
  • G03.030
  • G07.410.110
  • G09.188.050

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Common questions about Acid-Base Equilibrium

What does Acid-Base Equilibrium mean in medicine?
The balance between acids and bases in the BODY FLUIDS. The pH (HYDROGEN-ION CONCENTRATION) of the arterial BLOOD provides an index for the total body acid-base balance. This definition is taken from the National Library of Medicine's MeSH (Medical Subject Headings) 2026 release, which is the standard vocabulary used to index PubMed and most medical literature.
Is Acid-Base Equilibrium known by any other names?
Yes. Acid-Base Equilibrium is also referred to as Acid Base Equilibrium, Equilibrium, Acid-Base, Acid-Base Balance, Acid Base Balance in different clinical, research and patient-facing contexts. The MeSH descriptor groups all of these synonyms under a single canonical concept so research and records stay consistent.
Where does Acid-Base Equilibrium sit in the medical classification?
Acid-Base Equilibrium falls under the broader medical category "Phenomena and Processes" in the MeSH hierarchy (tree numbers: G02.111.007, G02.300.176, G03.030). Browsing the related concepts on this page takes you to neighbouring topics in the same branch of medicine.
Where can I get a plain-language explanation of Acid-Base Equilibrium?
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Source: NIH MeSH 2026 (D000136) — National Library of Medicine, public domain. View official MeSH record ↗