H pylori Antigen


Sunquest Code:HPSAG  
Epic Code:LAB397Epic Name:H pylori Antigen Stool
Synonyms:Helicobacter pylori; Hpylori; Fecal; Feces; HPSAG; H. Pylori
Methodology:Enzyme-linked immunoassay
CPT Code:----------CPTCODES HERE----------
Turnaround Time:Performed Mon-Fri; results are reported within 2 days.
Associated Links:

IDDL Stool Collection Container Guidelines



Collection Instructions

Specimen:Feces
Optimal Volume:10 mL liquid or 1 gm formed feces
Minimum\Peds Volume:5 mL liquid
Container:Plastic leakproof container, sterile (Para Pak Clean Vial)
Collection Instructions:Collect in clean, dry bedpan or onto newspaper over the toilet.
Causes for Rejection:Feces in transport media, swabs, or preservatives are unacceptable.


Processing and Shipping

Specimen Processing:Refrigerate up to 72 hours or freeze indefinitely. Specimen may be frozen and thawed twice. If testing cannot be performed within 72 hours, specimen should be frozen and stored frozen until tested.
Shipping Instructions:Ship at refrigerated temperature to arrive within 72 hours. Alternatively, ship on dry ice.
Test Performed at or Referral Lab Infectious Diseases Diagnostic Lab-Microbiology  (UMMC-East Bank, Microbiology (GICH))


Interpretive

Reference Range:

Negative for Helicobacter pylori stool antigen.

 

 

Limitations:Antimicrobials, proton pump inhibitors, and bismuth preparations are known to suppress H.pylori, and ingestion of these prior to H. pylori testing (culture, histology, rapid urease, UBT, antigen) may give a false negative result.


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