|Alternate:||IgM; Quantitative IgM|
|Available:||Daily, 24 hours.|
|Turnaround:||Routine 3 hours; Stat 30 minutes.|
|Container:||Green top tube|
|Uses:||IgM is decreased in immune deficient states, protein losing conditions, and non IgM myelomas, IgM is increased in Waldenstrom's macroglobulinemia, chronic infections and liver disease.|
|Limitations:||It should be noted that the assay of IgM for intrauterine infections is nonspecific and must be supplemented with specific diagnostic tests.|
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