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Test Code BLOD0628 Immunoglobulins (IgA, IgG, and IgM), Plasma or Serum

Methodology

Nephelometric

IgA values are decreased in immune deficiency states, infancy, non-IgA myelomas, and protein-losing conditions. IgA values are increased in chronic infections, chronic liver disease, cirrhosis, and myeloma.

IgG values are decreased in immune deficiency states, non-IgG myelomas, and protein-losing conditions. IgG values are increased in chronic infections, liver disease, and myeloma.

IgM values are decreased in immune deficiency states, non-IgM myelomas, and protein-losing conditions. IgM values are increased in chronic infections, liver disease, cirrhosis, and Waldenströdm’s macroglobulinemia.

Performing Laboratory

Bozeman Health Laboratory Services

Specimen Requirements

Specimen Type: Plasma or serum
Container/Tube: Light-green top (lithium heparin gel), red top, or gold top
Specimen Volume: 1 mL
Specimen Minimum Volume: 0.5 mL

Collection Instructions:

1. Label specimen as plasma or serum.

2. Avoid hemolysis and lipemia.

Specimen Transport Temperature

Refrigerated/Frozen

Specimen Stability

 

 

Specimen Type Temperature Time
Plasma or Serum Refrigerated 7 days
  Frozen 3 months

Note: Freeze within 24 hours of draw.

Reference Values

See individual test listings.

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

82784x3