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HelpEpic Test Code LAB865 Rubella Antibody, IgM
Additional Codes
ARUP: 0050551
Specimen Type
Serum
Preferred Container
Gold top tube
Blood Tube Draw Volume
Min 50% draw volume
Minumum Volume to Submit for Testing
1 mL Serum
- Multiple test can be performed from this volume. For question please contact the lab at 547-3975.
Transporation Needs
Deliver specimen to the laboratory within 1 hour of collection. If not possible see “storage requirements”
Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an Standard Transport Tube. And send refigerated
Storage Requirements
Ambient: 48 hours
Refrigerated: 2 weeks
Frozen: 1 year (avoid repeated freeze/thaw cycles)
Cause of Rejection
Less than 50% draw for Vacutainer tubes
Mislabeled or unlabeled specimen
Plasma or urine.
Contaminated specimens
heat-inactivated
grossly hemolyzed specimens
Reference Value
| 19.9 AU/mL or less: | Not Detected. |
| 20.0 - 24.9 AU/mL: | Indeterminate - Repeat testing in 10-14 days may be helpful. |
| 25.0 AU/mL or greater: | Detected - IgM antibody to rubella detected, which may indicate a current or recent infection or immunization |
Interpretive Data
Testing immediately post-exposure is of no value without a later convalescent specimen. While the presence of IgM antibodies suggests current or recent infection, low levels of IgM antibodies may occasionally persist for more than 12 months post-infection or immunization.
The magnitude of the measured result is not indicative of the amount of antibody present.
Days of Analysis
Sun-Sat
Turnaround Time
Within 24 hours once specimen is recived into testing lab
Methodology
Semi-Quantitative Chemiluminescent Immunoassay
CPT Code
86762
Last Updated
7-Jan-2020