Test Details

Mnemonic

RMSGM

Ordering Code

3718740

CPT-4 Code(s)

86757 x 2

Specimen Information

Collect

Serum separator tube (SST)

Specimen Preparation

Centrifuge, separate serum from cells within 2 hours of collection and send 1.0 mL serum in a screw capped plastic vial.

Minimum Volume

0.4 mL

Transport Temperature

Refrigerated

Rejection Criteria

Contaminated, hemolyzed, or severely lipemic specimens.

Stability

Room temperature: 48 hours
Refrigerated: 14 days
Frozen: 1 year

Methodology

Semi-Quantitative Cell-Based Indirect Fluorescent Antibody
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Reference Range

IgG: <1:64: Negative - No significant level of IgG
antibody detected.
1:64-1:128: Low Positive - Presence of IgG antibody
detected, suggestive of current or past infection.
1:256 or greater: Positive - Presence of IgG antibody
suggestive of recent or current infection.
IgM: <1:64: Negative - No significant level of IgM
antibody detected.
1:64 or greater: Positive - Presence of IgM antibody
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.
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Performing Laboratory

ARUP Reference Laboratory
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New York DOH Approval Status

Yes
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