ARUP's Laboratory Test Directory
| 0099359: Helicobacter pylori Antibody, IgG |
| Test Mnemonic: G PYLORI | |
|
Methodology: Enzyme Immunoassay
Performed: Sun-Sat Reported: Within 24 hours |
| Specimen Required: | |
|
Collect: One 4 mL SST, 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 |