Yale New Haven Hospital

Department of Laboratory Medicine
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Immunoglobulin M

Lab Section: 

Immunology

 

Lab Location: 

Main Lab

Test ID: 

LAB72

 

Methodology: 

Turbidimetry

Schedule: 

Monday-Friday

Reported: 

2 days

Specimen Requirements: 

Collection: 5.0 mL Blood in a Gold Top Tube
Pediatric volume: 1.0 mL
Unacceptable conditions: Grossly hemolyzed or severely lipemic specimens
Stability: After separation from cells: Ambient: 48 hours; Refrigerated: 7 days; Frozen: 3 months

 

Notes: 

Clinical Indications: Elevation of IgM may occur in monoclonal gammopathies such as macroglobulinemia, primary systemic amyloidosis, monoclonal gammopathy of undetermined significance, and related disorders. Decreased levels are found in patients with primary or secondary immune deficiencies.

Reference Interval: 

0-30 days:  Not established
6 months to 1 year: 21-171 mg/dL
2 – 10 years: 17-235 mg/dL
11-17 years: 30-288 mg/dL
>= 18 years: 40-230 mg/dL

CPT Code(s): 

82784

Last Changed: 

07/25/2017 11:30:02

Last Reviewed: 

08/14/2017 15:56:19