Immunoglobulin M (IgM)
Test Code: IGM
CPT Code: 82784
Test Name
Immunoglobulin M (IgM)
Epic Test Code
LAB72
Alias
Immunoglobulin M, IgM; IgM Quantitative
Specimen Type
One 1.0 mL (min: 0.5 mL) serum refrigerated
Specimen Container
One gold gel 3.5 mL (also acceptable: one plain red 4.0 mL)
Specimen Handling
Separate serum from cells within 2 hours of collection
Unacceptable Conditions
Grossly lipemic specimens; hemolyzed specimens (dependent on the level of hemolysis)
Methodology
Rate Nephelometry
Schedule
Daily
Reporting Time
Final: 24 hours
Stability
Ambient: Unacceptable / Refrigerated: 1 Week / Frozen: 2 Weeks
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