Lab test

Rubella Immunity Test - IgG Antibody Test

A rubella antibody test checks for IgG and IgM antibodies against the rubella virus.

Typical price

From $138

Results

1-3 business days

Preparation

See preparation notes below

Sample

Blood draw or sample collection at a local center

A rubella antibody test checks for IgG and IgM antibodies against the rubella virus. It can help show whether a person has immunity from vaccination or past infection, and IgM testing can support the evaluation of a possible current rubella infection. The test uses a blood sample. People may order it to confirm immunity, often before or during pregnancy, or when a healthcare provider is investigating a rash illness. Results are interpreted by a clinician, since the meaning depends on which antibody type is present and on the timing of exposure.

• Rubella IgG antibody Antibodies that generally reflect immunity from vaccination or past rubella infection.
• Rubella IgM antibody Antibodies that can support evaluation of a recent or current rubella infection.

• People who want to confirm rubella immunity
• Individuals whose healthcare provider recommends testing before or during pregnancy
• People with a possible recent exposure to rubella
• Those with a rash illness being evaluated for rubella
• Healthcare or childcare workers with immunity requirements

• No fasting is required for this blood test
• A standard blood draw is used to collect the sample
• Bring any vaccination records you have
• Tell the lab if you have had a recent rash or possible exposure

A detectable rubella IgG generally suggests immunity from vaccination or past infection. A negative rubella IgG may mean that immunity is uncertain. A positive rubella IgM can support evaluation of a recent infection but can sometimes be nonspecific, so it is interpreted carefully alongside IgG and clinical findings. A healthcare provider should review your rubella antibody results in context. Discuss results with a healthcare provider before making any decisions.

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