Helicobacter pylori Antigen, EIA, Stool
Test code
CPT code(s)*
Clinical significance
Test resources
Details
Methodology
Immunoassay (IA)
Alternative name(s)
H. pylori Antigen,Campylobacter pylori Antigen,H. pylori Stool Antigen
Specimen requirements | |
|---|---|
| Patient preparation | For initial diagnostic purposes no special patient preparation is required. Patients are not required to be off of medications or to fast before this test. While positive test results from patients taking agents such as proton pump inhibitors and antimicrobials should be considered accurate, false negative results may be obtained. For this reason, physicians may suggest the patient go off medications for two weeks and repeat test if negative results are obtained. To confirm eradication, testing should be done at least 4 weeks following the completion of treatment. However, a positive test result 7 days post therapy is indicative of treatment failure. This test is cleared for use with specimens from pediatric patients. |
| Preferred specimen(s) | 0.5 mL or 0.5 grams of semi-solid stool or 20 mm diameter solid stool collected in a clean plastic leak-proof container |
| Alternative specimen(s) | Cary-blair stool culture transport medium • C & S transport medium |
| Minimum volume | 0.5 mL or 0.5 grams semi-solid stool • 20 mm solid stool |
| Transport container | Plastic leak-proof container |
| Transport temperature | Unpreserved: Frozen Cary-Blair and C&S: Room temperature |
| Specimen stability | Unpreserved Room temperature: 4 days Refrigerated: 4 days Frozen: 14 days Cary-Blair or C&S Room temperature: 4 days Refrigerated: 4 days Frozen: Unacceptable |
| Reject criteria | Concentrated fecal specimens • Stool in transport media other than those listed above • Swab |
Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.
*The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.
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