basal acid output


Also found in: Acronyms.

basal acid output

Production of gastric H+ under baseline conditions, normal: 0-10 mmol/hour. The BAO serves to evaluate the completeness of vagotomy; patients with Zollinger-Ellison syndrome have a ratio of basal to maximal acid output (BAO:MAO) of > 60%. BAO is also increased in pernicious anaemia, gastric cancer, myxoedema and rheumatoid arthritis.

basal acid output

BAO Production of gastric H+ under baseline conditions, normal: 0-10 mmol/hr; BAO serves to evaluate the completeness of vagotomy; Pts with Zollinger-Ellison syndrome have a ratio of basal to maximal acid output–BAO/MAO of > 60%; BAO is also ↑ in pernicious anemia, gastric CA, myxedema, rheumatoid arthritis. Cf MAO, PAO.