Stomach acid test
Alternate Names : Gastric acid secretion test
Normally the volume of the stomach fluid is 20 to 100 mL and the pH is acidic (1.5 to 3.5). In some situations, these numbers are converted to actual acid production in units of milliequivalents per hour.
Note: Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
What do Abnormal Results Mean?
- Decreased levels of stomach acid or gastrin can cause malabsorption.
- Increased levels of gastrin can cause increased secretion of acid and may lead to ulcers (Zollinger-Ellison syndrome).
- Ulcers may be caused by delayed emptying or increased secretion of acid.
- The presence of bile in the stomach indicates material is backing up from the small intestine ( duodenum). This may happen after a partial gastrectomy.