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Laboratory Medicine

Test catalogue

Helicobacter pylori Antigen (H. pylori), Feces

Test Name

Helicobacter pylori Antigen (H. pylori), Feces

Urine sample Specimen Type / Requirements

Container Type = 1 Sterile Container

Minimum Volume = 0.5g Feces

Tube must by tightly capped to prevent leakage

Specimen Handling

Collection Instructions: 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 with recent PPI use. For this reason, physicians may suggest the patient go off medications for two weeks and repeat test if negative results are obtained.

Collection Instructions: Collect specimen in sterile leak-proof container. Do not place stool in preservative, transport media or swab. Refer to Patient Preparation document prior to collection. Patient Preparation Instructions. Write your initials, date and time of collection on the collection label.

Laboratory Staff Instructions: Register under MISCS and create an ICL sendout form. Store and send frozen.

Rejection Criteria: Watery or diarrheal stool, sample in ambient temperature, leaking, unlabeled or samples of non sufficient quantity.

Stability: Stable 72 hours Refrigerated and 30 days frozen.

Transportation: Send sample on ice to core lab as soon as possible.

Required Documentation

Turnaround Time (TAT)

5 days

Test Utilization

Reference Value

Not Detected

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.

Test Code

MISCS

Methodology

Enzyme Immunoassay

Testing Location

Referred Out – ON, Canada (ROICL02)

Other Information

Last Updated: July 24, 2020