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
Refrigerated: 14 days
Frozen: 1 year
Methodology
Semi-Quantitative Cell-Based Indirect Fluorescent Antibody
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.
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.
Performing Laboratory
ARUP
New York DOH Approval Status
Yes