Test Code IGM Immunoglobulin M (IgM), Serum or Plasma
Methodology
Turbidimetric
Performing Laboratory
Huntsville Hospital Laboratory
Specimen Requirements
Container/Tube:
Preferred: Lithium heparin (light green-top)
Acceptable: Serum Gel
Draw blood, spin down and send 1 mL (pediatric: 0.2 mL) of plasma or serum.
Reference Values
| Age | IgM (mg/dL) | 
| < 1 year | 0 – 145 | 
| 1 – 3 years | 19 - 146 | 
| 4 – 6 years | 24 – 210 | 
| 7 – 9 years | 31 – 208 | 
| 10 – 11 years | 31 – 179 | 
| 12 – 13 years | 35 – 239 | 
| 14 – 15 years | 15 – 188 | 
| 16- 19 years | 23 – 259 | 
| >19 years | 40- 230 | 
Day(s) Test Set Up
Monday through Sunday
CPT Coding
82784
Secondary ID
HHA1271
LOINC Coding
| Test name | LOINC Code | 
|---|---|
| Immunoglobulin M (IgM), Serum or Plasma | 2472-9 | 
Specimen Stability Information
| Specimen Type | Temperature | Time | 
| Plasma,lithium heparin / Serum | RT, spun | 2 months | 
| Refrigerated, spun | 4 months | 
Reject Due To
| Hemolysis | Mild: | ok | Gross: | ok | 
| Lipemia | Mild: | ok | Gross: | ok | 
| Icterus | Mild: | ok | Gross: | ok | 
 
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