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Helicobacter pylori Antibody, IgM, Plasma or Serum

Performing Laboratory

Pathology Associates Medical Laboratories (PAML)

Methodology

Enzyme-Linked Immunosorbent Assay (ELISA)

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 0.5 mL (minimum volume:  0.2 mL) of serum refrigerated.  Room temp: 2 days, ref: 2 weeks, froz: 1 year.

Note:  1. Indicate serum on request form.

2. Label specimen appropriately (serum).

 

Alternate:

Plasma

Draw blood in a green-top (lithium heparin) tube(s) or a lavender-top (EDTA) tube(s). Spin down, separate plasma from cells, and send 0.5 mL (minimum volume:  0.2 mL) of lithium heparin or EDTA plasma refrigerated.

Note:  1. Indicate plasma on request form.

2. Label specimen appropriately (plasma).

Reference Values

≤0.8 (negative) - no significant level of IgM antibody to H. pylori detected

0.9-1.1 (equivocal) - repeat testing in 10 to 14 days may be helpful

≥1.2 (positive) - IgM antibody to H. pylori detected, suggestive of active infection

Gastric colonization by Helicobacter pylori has been implicated in the development of some cases of gastritis and peptic or duodenal ulcer. The critical utility of H. pylori IgM antibody measurement has not been clearly established.

Day(s) Test Set Up

Tuesday, Thursday, Sunday

Test Classification and CPT Coding

86677