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Stomach Acid Secretion Test - Stomach Acid Stimulation Test
Overview & Description
The stomach acid stimulation test is used to evaluate the ability of the stomach to secrete acid. Stomach acid helps break down food so the body can use it.
A healthy stomach has about one million times more acid than water. This amount of acid is needed to digest food properly. There are some conditions that can cause the stomach to make too little or too much acid.
Who is a candidate for the test?
This test is mainly used to evaluate:
How is the test performed?
A small tube is inserted through the nose and into the stomach. A special medication is then given by injection. This medication normally causes the stomach to make acid. After the medication has taken effect, a small amount of stomach fluid is removed. This fluid is sent to the lab for analysis. The amount of acid made by the stomach in response to the medication can be measured.
Preparation & Expectations
What is involved in preparation for the test?
A person is instructed not to eat or drink for 4 to 6 hours before the test.
Results and Values
What do the test results mean?
The test results show how much acid is made by the stomach in response to the medication. There is a range of acid levels that is considered normal. Some people fall outside of this range for no special reason. However, if the stomach makes less acid than normal, it may be due to:
If the stomach makes more acid than normal, it may be due to:
Attribution
Author:Gail Hendrickson, RN, BS
Date Written:
Editor:Keefe, Sandy, RN, MSN
Edit Date:05/25/00
Reviewer:Adam Brochert, MD
Date Reviewed:05/01/01
Sources
Mosby's Diagnostic and Laboratory Test Reference, Fourth Edition, 1999.