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Test Code Billings Clinic: 4106 Immunoglobulin M (IgM), Plasma or Serum

Performing Laboratory

Billings Clinic Laboratory:  Chemistry

Useful For

Detecting or monitoring of monoclonal gammopathies and immune deficiencies

Methodology

PEG-enhanced Immunoturbidimetric

Specimen Requirements

Submit only 1 of the following specimens:

Serum or plasma should be physically separated from cells as soon as possible with a maximum limit of two hours from the time of collection.

 

Plasma

  • Draw blood in a green-top (lithium heparin) tube(s).
  • Spin down and send 1.0 mL of heparinized plasma frozen.

 

Serum

  • Draw blood in a plain, red-top tube(s) or a serum gel tube(s).
  • Spin down and send 1.0 mL of serum frozen

Storage/Stability

Specimen Type Temperature Time
Plasma Refrigerated (preferred) 7 days
  Frozen 3 months

 

Reference Values

0 - 4 months: 26 - 122 mg/dL

3 - 8 months: 32 - 132 mg/dL

8 - 14 months: 40 - 143 mg/dL

14 months - 2 years: 46 - 152 mg/dL

2 - 3 years: 37 - 184 mg/dL

3 - 6 years: 37 - 224 mg/dL

6 - 9 years: 38 - 251 mg/dL

9 - 12 years: 41 - 255 mg/dL

12 - 15 years: 45 - 244 mg/dL

15 - 17 years: 49 - 201 mg/dL

> 17 years: 40 - 230 mg/dL

Day(s) Test Set Up

Daily

Test Classification and CPT Coding

82784 - Gammaglobulin (immunoglobulin); IgA, IgG, IgM, each

LOINC Code Information

Reporting Name LOINC Code
IgM 2472-9