Helicobacter pylori Tests

Gastric Ulcer Test, H. pylori Test, Peptic Ulcer Test, Stomach Ulcer Test, Stool Antigen Test, Urea Breath Test

Results

Helicobacter pylori tests are used to detect a Helicobacter pylori (H. pylori) infection in the stomach and upper part of the small intestine (duodenum).

Results from the urea breath test or a stool antigen test are generally available within a few hours. Results from a blood antibody test are usually available within 24 hours. Results from biopsy samples obtained by endoscopy are usually available within 48 hours. Results from a biopsy sample that is cultured can take up to 10 days.

Blood antibody test

Normal:	The blood sample does not contain H. pylori antigens.
Abnormal:	The blood sample contains H. pylori antigens.

 

Urea breath test

Normal:	The breath sample does not contain the tagged hydrocarbon.
Abnormal:	The breath sample contains the tagged hydrocarbon.

 

Stool antigen test

Normal:	The stool sample does not contain H. pylori antigens. This is called a negative test result. However, a negative stool antigen test does not always mean that you do not have an H. pylori infection.
Abnormal:	The stool sample contains H. pylori antigens.

 

Stomach biopsy

Normal:	The biopsy sample does not contain H. pylori bacteria. H. pylori bacteria does not grow in a culture of the tissue biopsy samples. See an illustration of a normal stomach as seen during endoscopy.
Abnormal:	The biopsy sample contains H. pylori bacteria. H. pylori bacteria grows in a culture of the tissue biopsy samples. See an illustration of gastritis caused by H. pylori as seen during endoscopy.

 

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Author:	Monica Rhodes	Last Updated: January 11, 2008
Medical Review:	Kathleen Romito, MD - Family Medicine Andrew H. Soll, MD - Gastroenterology
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