Davis's Lab & Diagnostic Tests

Rubella Antibodies, IgG and IgM

Rubella Antibodies, IgG and IgM is a topic covered in the Davis's Lab & Diagnostic Tests.

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German measles serology.

Common Use:
To assess for antibodies related to rubella immunity or for presence of rubella infection.

Serum collected in a gold-, red-, or red/gray-top tube. Place separated serum into a standard transport tube within 2 hr of collection.

Normal Findings:
(Method: Chemiluminescent immunoassay)

Negative0.9 index or lessNo significant level of detectable antibodyLess than 8 units/mLNo significant level of detectable antibody; indicative of nonimmunity
Indeterminate0.91–1.09 indexEquivocal results; retest in 10–14 d8–12 units/mLEquivocal results; retest in 10–14 d
Positive1.1 index or greaterAntibody detected; indicative of recent immunization, current or recent infectionGreater than 12 units/mLAntibody detected; indicative of immunization, current or past infection

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