Test Details

Mnemonic

RMSGM

Ordering Code

3718740

CPT-4 Code(s)

86757 x 2

Specimen Information

Collect

SST
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Specimen Preparation

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

Serum: Red-top
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Minimum Volume

0.3 mL
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Transport Temperature

Refrigerated
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Rejection Criteria

Grossly hemolyzed or lipemic specimens
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Stability

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

Indirect Fluorescence Assay
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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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