IMMUNOGLOBULIN M (IgM)

Specimen Required
Draw blood in a SST. Centrifuge, separate and send 1.0 mL serum (0.5 mL serum) refrigerated in a screw-capped plastic vial.

Alternate Specimen
Plasma: EDTA, heparin (sodium or lithium)
Serum: Red-top

Methodology
Nephelometry

Stability
Room Temperature: Unacceptable; Refrigerated: 8 days; Frozen: 3 months

Reference Range
0-30 days:   0-24 mg/dL  
1 month:   19-83 mg/dL  
2 months:   16-100 mg/dL  
3 months:   23-85 mg/dL  
4 months:   26-96 mg/dL  
5 months:   31-103 mg/dL  
6 months:   33-97 mg/dL  
7-8 months:   32-120 mg/dL  
9-11 months:   39-142 mg/dL  
1 year:   41-164 mg/dL  
2 years:   46-160 mg/dL  
3 years:   45-190 mg/dL  
4 years:   41-186 mg/dL  
5-7 years:   46-197 mg/dL  
8-9 years:   49-230 mg/dL  
>=10 years:   40-230 mg/dL  

Performed
Sunday-Friday

Turnaround Time1-2 days
Test CodeIGM
CPT-4 Code (s)
82784
LOINC Codes
2472-9

Warde
Medical
Laboratory