Gastric fluids

 

TYPICAL REFERENCE INTERVALS

COMPONENT CONVENTIONAL UNITS FACTOR RECOMMENDED SI UNITS
Fasting residual volume 20-100 mL 0.001 0.02-0.10 L
pH >2.0 1 >2.0
Basal acid output (BAO)* 0-6 mEq/h 1 0-6 mmol/h
Maximum acid output (MAO)

(after histamine stimulation)

5-40 mEq/h 1 5-40 mmol/h
BAO/MAO ratio >0.4 1 >0.4