ARUP's Laboratory Test Directory

Rubella Antibodies, IgG & IgM : 0050552

Mnemonic: RUBE G/M

Methodology: Chemiluminescent Immunoassay
Performed: Sun-Sat
Reported: Within 24 hours
Specimen Required: Collect: Serum separator tube.

Specimen Preparation: Allow specimen to clot completely at room temperature. Separate serum from cells ASAP or within 2 hours of collection. Transfer 2 mL serum to an ARUP Standard Transport Tube. (Min: 0.5 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Mark specimens plainly as "acute" or "convalescent."

Storage/Transport Temperature: Refrigerated.

Unacceptable Conditions: Refer to individual components.

Stability (collection to initiation of testing): After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Reference Interval:
 
Test Number Components Reference Interval
0050771Rubella Antibody, IgG Less than 5 IU/mL: Negative - No significant level of detectable rubella IgG antibody.
5-9 IU/mL: Equivocal - Repeat testing in 10-14 days may be helpful.
10 IU/mL or greater: Positive - IgG antibody to rubella detected, which may indicate a current or previous exposure/immunization to rubella.
0050551Rubella Antibody, IgM 0.89 IV or less: Negative - No significant level of detectable rubella IgM antibody.
0.90-1.09 IV: Equivocal - Repeat testing in 10-14 days may be helpful.
1.10 IV or greater: Positive - IgM antibody to rubella detected, which may indicate a current or recent infection or immunization.

CPT Code(s): 86317 Rubella, IgG; 86762 Rubella, IgM
 
 

 

 

 
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