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Immunofixation, Serum
Test CodeSPEPB
Preferred Specimen
1 mL serum
Patient Preparation
Overnight fasting is preferred
Minimum Volume
0.5 mL
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 4 days
Refrigerated: 7 days
Frozen: 30 days
Refrigerated: 7 days
Frozen: 30 days
Methodology
Immunofixation
Setup Schedule
Set up: Sun-Fri; Report available: 2-5 days
Clinical Significance
Monoclonal increases in IgG or IgA are often associated with diseases such as multiple myeloma, lymphomas or leukemia. A monoclonal increase in IgM is commonly associated with Waldenström's macroglobulinemia.