HELICOBACTER PYLORI ANTIBODIES IgG & IgA
Specimen Collection Requirements
Serum separator tube, lavender (EDTA), pink (K2EDTA), or green (sodium or lithium heparin).
Separate serum or plasma from cells ASAP or within 2 hours of collection. Transfer 0.5 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.1 mL)
Contaminated, heat-inactivated, hemolyzed, or severely lipemic specimens.Contaminated, heat-inactivated, hemolyzed, or severely lipemic specimens.
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Semi-Quantitative Enzyme Immunoassay
ARUP (50994) IgA; Legacy Laboratory Services IgG
Helicobacter pylori IgG Antibody:
0.0-20.0 units: Negative - No significant level of IgG antibody to H. pylori detected. 20.1-24.9 units: Equivocal - Repeat testing in 10-14 days in parallel may be helpful. =>25.0 units: Positive - IgG antibody to H. pylori detected.
Helicobacter pylori IgA Antibody:
IgA 1.7 EV or less: Negative - No significant level of IgA 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 - IgA antibody to H. pylori detected, suggestive of active infection.
86677 H. pylori IgG; 86677 H. pylori IgA
Thursday, January 5, 2017 03:42:13 AM