Rubella Antibodies (IgG IgM) DiagnosticMain Content
Test Code: 37673
Methodology: Immunoassay (IA)
Clinical Significance: Rubella (German Measles) is a common and usually benign viral infection of children. IgM antibody is detectable 11-25 days after the onset of exanthem, in most individuals 15-25 days after vaccination, and in 90-97% of infants with congenital rubella between 2 weeks and 3 months after birth. Acute and convalescent IgG titers may be interpreted to identify a >30% rise in the antibody index. A positive IgG antibody indicates successful immunization or past exposure.
Limitations: False-positives may be found in newborns from mothers. IgM may persist after infection is treated.
Alternative Name(s): German Measles, Anti-German Measles Ab IgG, Rubella Screen, Anti-Rubella Ab IgG
Supply: T01 - Red/Gray SST 8.5mL
Preferred Specimen: Serum
Preferred Volume: 1mL
Transport Container: Serum Separator Tube (SST)
Transport Temperature: Room Temperature
Specimen Stability: Room Temperature: 4 Days
Rejection Criteria: Plasma; Gross hemolysis; Gross lipemia
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