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Helicobacter pylori Antibody Panel, IgG, IgA

Performing Laboratory

Pathology Associates Medical Laboratories (PAML)

Methodology

Enzyme Immunoassay (EIA)

Specimen Requirements

Submit only 1 of the following specimens:

 

Preferred:

Serum

Draw blood in a gold-top serum gel tube(s). Spin down, separate serum from cells, and send 1 mL (minimum volume:  0.5 mL) of serum refrigerated.  Room temp: 1 day, ref: 2 weeks, froz: 1 month.

Note:  1. Indicate serum on request form.

2. Label specimen appropriately (serum).

 

Reference Values

H. pylori ANTIBODY, IgA

0.0-20.0 (negative) - no significant level of IgA antibody to H. pylori  detected

20.1-24.9 (equivocal) - repeat testing in 10 to 14 days may be helpful

≥25.0 (positive) - IgA antibody to H. pylori detected, suggestive of active infection

H. pylori IgG and IgA antibody seroconversion occur together after 60 days. Specimens which have a high titer of both IgG and IgA antibodies to H. pylori in symptomatic individuals may be considered to represent an active infection and should be confirmed by bacterial isolation or other diagnostic testing.

H. pylori ANTIBODY, IgG

0.0-20.0 (negative) - no significant level of IgG antibody to H. pylori  detected

20.1-24.9 (equivocal) - repeat testing in 10 to 14 days may be helpful

≥25.0  (positive) - IgG antibody to H. pylori detected, suggestive of previous exposure or active infection

Day(s) Test Set Up

Monday through Saturday

Test Classification and CPT Coding

86677 x 2