Stomach acid test

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Stomach acid test

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).

• Ulcers may be caused by delayed emptying or increased secretion of acid.
• The presence of bile in the stomach indicates backing up of material from the duodenum. This may occur after a partial gastrectomy. (See also gastroesophageal reflux disease).
• Decreased levels of stomach acid or gastrin can cause malabsorption (not enough absorption of nutrients from the intestines).
• Increased levels of gastrin may cause increased secretion of acid and may lead to ulcers (Zollinger-Ellison syndrome).

Review Date: 10/18/2006
Reviewed By: Jenifer K. Lehrer, MD, Department of Gastroenterology, Frankford-Torresdale Hospital, Jefferson Health System, Philadelphia, PA.Review provided by VeriMed Healthcare Network.