ARUP's Laboratory Test Directory

Helicobacter pylori Antibody, IgG : 0099359

Mnemonic: G PYLORI

Methodology: Enzyme Immunoassay
Performed: Sun-Sat
Reported: Within 24 hours
Specimen Required: Collect:  One 4 mL serum separator tube, lavender (EDTA), pink (K2EDTA), or green (sodium or lithium heparin).

Transport:  0.5 mL serum or plasma at 2-8°C. (Min: 0.3 mL)  Submit specimen in an ARUP Standard Transport Tube.

Pediatric Collection/Transport:  0.1 mL serum or plasma at 2-8°C.

Remarks:  Separate serum or plasma from cells ASAP.

Unacceptable Conditions:  Severely lipemic, contaminated, heat-inactivated, or hemolyzed specimens.

Stability:  After separation from cells: Ambient: 2 days; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Reference Interval:
1.7 EV or less: Negative - No significant level of IgG antibody to H. pylori detected.
1.8-2.2 EV: Equivocal - Repeat testing in 10-14 days may be helpful.
2.3 EV or greater: Positive - IgG antibody to H. pylori detected, suggestive of previous exposure or active infection.
Interpretive Data: Previously known as Campylobacter pylori, Helicobacter pylori-specific antibodies are detectable in almost all adult patients with duodenal ulcer and about 80% of patients with gastric ulcer. The prevalence of H. pylori antibodies increases with age and can be found in a significant percentage of healthy individuals over the age of 50. Positive results do not confirm the diagnosis of H. pylori-associated gastritis or duodenal ulcer, but negative results are strong evidence against these diagnoses.
CPT Code(s): 86677
 
 

 

 

 
All ARUP Sites:        www.aruplab.com     ·     www.arupconsult.com     ·     www.arup.utah.edu     ·     www.childx.org     ·     www.utahblood.org