Davis's Lab & Diagnostic Tests

Gastric Analysis and Gastric Acid Stimulation Test

Gastric Analysis and Gastric Acid Stimulation Test is a topic covered in the Davis's Lab & Diagnostic Tests.

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Common Use:
To evaluate gastric fluid and the amount of gastric acid secreted toward diagnosing gastrointestinal disorders such as ulcers, cancers, and inflammation.

Gastric fluid collected in eight plastic tubes at 15-min intervals.

Normal Findings:
(Method: Volume measurement and pH by ion-selective electrode)

Basal acid output (BAO)Male: 0–10.5 mmol/hr
Female: 0–5.6 mmol/hr
Peak acid output (PAO)Male: 12–60 mmol/hr
Female: 8–40 mmol/hr
Peak response timePentagastrin, intramuscular: 15–45 min
Pentagastrin, subcutaneous: 10–30 min
BAO/PAO ratioLess than 0.2

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