Turnaround times
The quoted turnaround time is from sample receipt in the laboratory, to results authorisation in the Laboratory Information Management system. The times do not include transport of specimen to the laboratory or the administrative process to print and post/email reports. Service users must allow for transport and reporting time when ordering tests.
Clinical background:
H pylori is present in almost all cases of duodenal ulcer and most cases of gastric ulcer. Faecal antigen testing may be done to help support a diagnosis of H. pylori infection or to find out whether treatment for an H. pylori infection has been successful.
Specimen container paediatric:
Scoop faeces in to Universal using integrated spoon.
Specimen container adult:
Scoop faeces in to Universal using integrated spoon.
Minimum volume paediatric:
Pea sized portion
Minimum volume adult:
Pea sized portion
Special requirements:
Send to laboratory as quickly as possible. If delays likely, refrigerate at 2-8 deg C.
Sample stability:
Stable for up to 24 hrs.
Transport requirements:
Standard
Add on test:
Possible up to 5 days.
Quality assurance:
External Quality Assurance Scheme.
Interpretation:
For patients with uncomplicated dyspepsia, a non-invasive test like a stool antigen test (SAT) is a good option to check for Helicobacter pylori infection.
Avoid stool antigen tests (SAT) for at least two weeks after taking medications like proton pump inhibitors (PPIs). Also, wait at least four weeks after taking antibiotics before scheduling these tests. Why? These medications can reduce the number of bacteria in your gut, which can lead to inaccurate test results.
Reference ranges:
None available
Factors affecting result:
If delays likely, refrigerate at 2-8 deg C
Referenced Documents:
https://www.gov.uk/government/publications/helicobacter-pylori-diagnosis-and-treatment
Other Info:
N/A