Test Code HELIAG Helicobacter pylori Antigen, Stool
Additional Codes
Sunrise Clinical Manager (SCM) Orderable: Helicobactor Pylori Antigen, Stool
AllScripts (AEHR) Orderable: Helicobactor Pylori Antigen, Stool
Performing Laboratory
Quest Diagnostics Nichols Insititute, Chantilly, VA
Methodology
Immunoassay
Specimen Requirements
Container/Tube: A clean, leak-proof plastic container
Specimen: 2 g (thumbnail size portion of stool) or 2 mL liquid stool. No preservative.
Transport Temperature: Frozen
Stability: Refrigerated - 72 Hour(s)
Frozen - 30 Day(s)
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
Reference Values
Negative
TAT 2 - 5 Days
Test Classification and CPT Coding
87338
LONIC code: 17780-8
Day(s) and Time(s) Performed
Monday through Sunday
Useful For
Colonization with H. pylori is associated with increased risk of patients developing gastritis, peptic ulcer disease, and gastric adenocarcinoma. Stool antigen testing provides a sensitive measure of infection including during and after treatment.
Computer Interface Code
PDM # 5900721