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Gastric tissue biopsy and culture
Definition
Gastric tissue biopsy is the removal of stomach tissue for examination. A culture is a laboratory test that examines the tissue sample for bacteria and other organisms that can cause disease.
Alternative Names
Culture - gastric tissue; Biopsy - gastric tissue
How the test is performed
The gastric tissue biopsy sample is removed during an upper endoscopy. You will usually be given medicines to make you drowsy or less anxious before the test starts. For information on how this procedure is performed, see upper endoscopy (or EGD).
The health care provider sends the tissue sample to a laboratory where it is placed in a special dish and checked periodically to see if bacteria or other organisms have grown. This is called a culture.
How to prepare for the test
Don't eat or drink anything for 6 - 12 hours before the biopsy procedure. For more information see upper endoscopy.
How the test will feel
For information on how the biopsy procedure will feel, see: Upper endoscopy.
The laboratory culture is painless, since it does not involve the patient.
Why the test is performed
A gastric tissue biopsy and culture may be done to look for:
- Cancer
- Infections
- Ulcers
Normal Values
A gastric tissue culture may be considered normal if it does not show certain bacteria such as Helicobacter pylori or giardia.
Note: Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
What abnormal results mean
Stomach acids normally prevent too much bacteria from growing. A gastric tissue culture may be considered abnormal if it shows certain bacteria such as Helicobacter pylori, which plays a role in ulcer disease.
What the risks are
There are no risks associated with a culture. For information on risks related to the biopsy procedure, see upper endoscopy.
Review Date:1/22/2008
Reviewed By:Kenneth M. Wener, MD, Department of Infectious Diseases, Lahey Clinic, Burlington, MA. Review provided by VeriMed Healthcare Network.
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