Test Name
IMMUNOGLOBULIN M (IgM)
Aliases
IGM TOTAL; SERUM IGM; M CLASS IMMUNOGLOBULIN; MU GLOBULIN
Abbreviations
IGM
Test Classification
Place Holder
Department
SPECIAL CHEMISTRY
Sub Department
-
TAT Category
ELAPSED (CONTINUOUS) TIME
Estimated TAT
5
TAT Units
DAYS
Test Requirements
Serum collected using a serum separator tube (SST) or a plain red-top tube. Allow the sample to clot at room temperature for 30-60 minutes. Centrifuge the sample within 1 hour to separate the serum from the clot.
Clinical Utility
Evaluation of hypogammaglobulinemia, suspected IgM deficiency, IgM gammopathy
Last Review
26th Feb 2026