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ID:512 Helicobacter pylori stool antigen test
Search Links: General Info : Protocols : LabTestsOnline

DescriptionHelicobacter pylori antigen is detected in a stool sample by ELISA. This is a non-invasive test to which compares well with urea breath testing and is superior to Helicobacter pylori serology with regards to assessing the H. pylori status of a patient. Turnaround times for 90% of HpSAg requests: 7 calendar days.
Additional Info Also refer to the "Dyspepsia" NICE guideline for more information.
Concurrent Testsna
Dietary Requirementsna
Interpretation Antimicrobials, proton pump inhibitors and bismuth preparations are known to suppress H. pylori and ingestion of these prior to 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 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 test should be considered accurate

Tube Picture
Collection ConditionsNote: Please use the faecal culture collection tube for this test although the test itself is not based on culture.
Min. Vol 2g

Ref. Range (Male)
Ref. Range (Female)
Ref. Range (Paed)
Ref. Range Notes
Units - Not Defined -
IP Acute TAT5 days
IP Routine TAT5 days
GP Acute TAT5 days
GP Routine TAT5 days
Turnround CommentNegative results may be available considerably earlier than stated turnaround time.

Originally edited by : Dr. H Schuster ext 25035. Review due on 28/02/2018 10:34:20. Published By K Roberts on 28/02/2017 10:34:20.