Synonyms
- Campylobacter pylori
- Campylobacter From Stomach
- H pylori Stool Antigen
- Culture, Helicobacter pylori
Test Includes
Immunoassay for Helicobacter pylori
Expected Turnaround Time
2 - 4 days
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Related Information
Related Documents
For more information, please view the literature below.
Specimen Requirements
Specimen
Stool
Volume
2 g (thumbnail size portion of stool), 2 mL liquid stool
Minimum Volume
1 g stool, 1 mL liquid stool
Container
Sterile screw-cap vial (Para-Pak® white clean vial)
Storage Instructions
Specimen should be kept refrigerated after collection and transported refrigerated to the laboratory within 72 hours. If a longer period is required, or if the specimen is being sent to another lab for testing, the specimen should be frozen at -70°C.
Causes for Rejection
Inappropriate specimen transport conditions (e.g., room temperature) or device; unlabeled specimen or name discrepancy between specimen and request label; specimen received after prolonged delay (usually more than 72 hours); leaking specimen; specimen received in inappropriate container (denture cup, “Cool Whip” container, margarine container, or similar container)
Test Details
Use
This test is used to establish the presence and possible etiologic role of Helicobacter pylori in cases of chronic gastric ulcer, gastritis, duodenal ulcer, dyspepsia, etc.
Methodology
Immunoassay
Contraindications
Antimicrobials, proton pump inhibitors, and bismuth preparations are known to suppress H. pylori, and ingestion of these prior to H. pylori testing may give a false-negative result. If a negative result is obtained for a patient ingesting these compounds within two weeks prior to performing the stool antigen test, it may be a false-negative result and the test should be repeated on a new specimen obtained two weeks after discontinuing treatment. A positive result for a patient ingesting these compounds within two weeks prior to performing the stool antigen test should be considered accurate.
LOINC® Map
| Order Code | Order Code Name | Order Loinc | Result Code | Result Code Name | UofM | Result LOINC |
|---|---|---|---|---|---|---|
| 180764 | H. pylori Stool Ag, EIA | 17780-8 | 180764 | H. pylori Stool Ag, EIA | 17780-8 |
© 2021 Laboratory Corporation of America® Holdings and Lexi-Comp Inc. All Rights Reserved.
CPT Statement/Profile Statement
The LOINC® codes are copyright © 1994-2021, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. Permission is granted in perpetuity, without payment of license fees or royalties, to use, copy, or distribute the LOINC® codes for any commercial or non-commercial purpose, subject to the terms under the license agreement found at https://loinc.org/license/. Additional information regarding LOINC® codes can be found at LOINC.org, including the LOINC Manual, which can be downloaded at LOINC.org/downloads/files/LOINCManual.pdf