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Worcestershire Acute Hospitals NHS Trust
Helicobacter Pylori
CategoryMicrobiology - Virology
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Please include relevant clinical details including any antimicrobial therapy and proton-pump inhibitor (PPI) use in the last 4 weeks.
Test information
This is an antigen test performed on stool samples. A positive result is consistent with a current infection with H. pylori. Anti-microbial or gastric acid suppression therapy administered 2 weeks prior to testing can produce a false-negative result.
The specimen should be tested as soon as possible, but may be held for up to 72 hours at 2-8˚C before testing. 
Patients should be told to omit PPI treatment for 2 weeks prior to testing as PPI use increases the chance of a false-negative result.
Tube type
Sterile stool container
Faecal stools container
TAT Inpatient (urgent)
4 days
Referral lab
Page last updated: 11 January 2022