Rubella Antibodies, IgG and IgM
Also known as: RUBE G/M
Use
The Rubella Antibodies, IgG and IgM test is used to aid in the diagnosis of suspected rubella infection. The presence of IgM antibodies suggests current or recent infection, although low levels may persist for more than 12 months post-infection or immunization. The most reliable indication of current infection is a significant change in antibody levels on two appropriately timed specimens, both tested in the same laboratory at the same time.
Special Instructions
Patient preparation includes using a serum separator tube. It is important to allow the specimen to clot completely at room temperature and separate serum from cells as soon as possible or within 2 hours of collection. Mark specimens clearly as "acute" or "convalescent" when necessary.
Limitations
Testing immediately post-exposure is of no value without a later convalescent specimen. The magnitude of the measured result is not indicative of the amount of antibody present. Plasma or urine, contaminated, heat-inactivated, icteric, or hemolyzed specimens are unacceptable.
FDA ApprovedNew York Approved
Methodology
Immunoassay (CLIA)
Biomarkers
Result Turnaround Time
0-1 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
2 mL
Minimum Volume
0.5 mL
Container
ARUP standard transport tube
Collection Instructions
Allow specimen to clot completely at room temperature. Separate serum from cells ASAP or within 2 hours of collection.
Storage Instructions
Refrigerate after separation. Avoid repeated freeze/thaw cycles.
Causes for Rejection
Plasma or urine. Contaminated, heat-inactivated, icteric, or hemolyzed specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 48 hours |
| Refrigerated | 2 weeks |
| Frozen | 1 year |