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Cytomegalovirus IgM Antibody

Mnemonic

CMV-IGM

Synonym

CMV IgM Antibody

Specimen Collection Requirements

Collect

Serum, one 4.0 mL gold (SST) top tube

Handling

Allow specimen to clot completely at room temperature. Separate serum from cells ASAP. Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Please mark specimen plainly as Acute or Convalescent.

Preferred Volume

1.0 mL

Minimum Volume

0.5 mL

Transport

Refrigerated

Rejection Criteria

Urine, contaminated, heat-inactivated or hemolyzed specimens

Stability

AFTER SEPARATION FROM CELLS: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year, avoid repeated freeze/thaw cycles

Testing Information

Performed

7 days/week

Reported

2-4 days

Method

Semi-Quantitative Chemiluminescent Immunoassay

Referral Lab

ARUP (50553)

Reference Values

Reference Values

29.9 AU/mL or less:          Not Detected
30.0-34.9 AU/mL:            Indeterminate - Repeat testing in 10-14 days may be helpful.
35.0 AU/mL or greater:     Detected - IgM antibody to CMV detected, which may indicate a current or recent infection. However, low levels of IgM antibodies may occasionally persist for more than 12 months post-infection.

CPT Codes

86645

Last Updated: Monday, September 30, 2019 08:30:02 PM


Client Services: 503-413-1234