Rubella Antibody, IgG

Tube Type

Test ID   LAB496
EPIC Order
   RUBELLA ANTIBODY, IgG
CPT Code(s)   86762
Group/Individual Test   Individual
Laboratory   Clinical Immunology
Tube Station   30
Specimen Routine: 3 mL blood/Gold SST tube
Availability Routine: Monday-Friday
  STAT: N/A
Turnaround Time   7 days
Comments
  • Specimens submitted for Rubella testing are assayed using a qualitative, chemiluminescence immunoassay for the detection of IgG antibodies to Rubella virus in human serum samples. This test is primarily intended for the determination of immune status. 
  • Results are reported as negative, positive or equivocal.  A negative result presumes that immunity has not been acquired. 
  • If exposure to rubella virus is suspected despite a negative finding, a second specimen should be collected and tested one or two weeks later.
  • Seroconversion from a negative specimen to a positive specimen is evidence of either recent infection, response to vaccination, or administration of immunoglobulins.  A positive result indicates that Rubella IgG antibodies of at least 10IU/ml are present.  This level of antibody is considered an indicator of immunity (CLSI I/LA6/A).  
  • Equivocal results should prompt collection of a new sample for repeat testing.

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514