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IMMUNOGLOBULIN-M

Mnemonic

IGM

Synonym

IgM

Specimen Collection Requirements

Collect

Serum, one 5.0 mL gold (SST) top tube

Handling

Allow serum to clot completely at room temperature (minimum for SST - 30 minutes and red top tubes - 60 minutes). Centrifuge and separate serum from cells within one hour of collection.

Preferred Volume

1.0 mL

Minimum Volume

0.5 mL

Transport

Refrigerated (2-8°C)

Rejection Criteria

Grossly hemolyzed or grossly lipemic specimens

Stability

AFTER SEPARATION FROM CELLS: Ambient (18-26°C): 8 hours; Refrigerated (2-8°C): 7 days; Frozen (at or below -20°C): 3 months if frozen within 24 hours of collection

Testing Information

Performed

Mon - Fri

Reported

24-72 hours

Method

Nephelometry

Reference Values

Reference Values

MALE:    25-210 mg/dL
FEMALE:    31-257 mg/dL
Age adjusted ranges.

CPT Codes

82784

Last Updated: Tuesday, May 8, 2018 01:02:31 PM


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