Helicobacter pylori Antigen, Fecal by EIA
Also known as: PYLORI AG
Use
This test is used as an alternative to the H. pylori urea breath test for diagnosing Helicobacter pylori infection. It detects the presence of Helicobacter pylori antigens in stool samples, which is an indicator of active infection in the gastrointestinal tract. Proper diagnosis and treatment of H. pylori infection are crucial for preventing complications such as peptic ulcers, gastric cancer, and mucosa-associated lymphoid tissue (MALT) lymphoma.
Special Instructions
To avoid false negative results, patients should not take antibiotics, proton pump inhibitors, or bismuth preparations for 14 days prior to specimen collection. The test requires stool samples and uses an unpreserved stool transport vial provided by ARUP. These vials can be ordered through ARUP Connect or by contacting ARUP Client Services.
Limitations
This test has a limitation where gastric specimens, swabs, or tissue samples are unacceptable. Specimens in media or preservatives are also unacceptable. False negatives may occur if the patient has recently taken certain medications such as antibiotics, proton pump inhibitors, or bismuth preparations.
New York Approved
Methodology
Immunoassay (ELISA)
Biomarkers
LOINC Codes
- 17780-8
Result Turnaround Time
1-2 days
Related Documents
For more information, please review the documents below
Specimen
Stool
Volume
4 g
Minimum Volume
1 g
Container
Unpreserved stool transport vial (ARUP supply #40910)
Patient Preparation
Avoid antibiotics, proton pump inhibitors, or a bismuth preparation for 14 days prior to collection.
Storage Instructions
Frozen
Causes for Rejection
Gastric specimens, swabs or tissue. Specimens in media or preservatives.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 4 days |
| Refrigerated | 4 days |
| Frozen | 1 month |