A patient seated in the chair before a blood draw
In person

Rubella Immunity (IgG)

Rubella IgG antibodies, often checked before pregnancy.

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  • 2,000+ lab locations. Find one near you
  • Nothing due at the lab. FSA / HSA accepted
  • Ordered by a licensed clinician

At a glance

Collection
Blood draw
A standard blood draw at the lab.
Preparation
None
Nothing to do ahead of time. Water is fine.
Results
2 to 4 days
Typical turnaround after your visit.
Where
2,000+ lab locations
Nationwide, with nothing due at the lab.

About this test

This test measures IgG antibodies to rubella, also called German measles. The lab notes that rubella IgG is evidence of immunity, unless there is a current or recent infection. Rubella during pregnancy can affect a developing baby, so people often check it before pregnancy, and for school or work.

For adults 18 and older. Test availability varies by lab location.

Who should take this test?

For adults planning a pregnancy, or who were asked about rubella immunity by a school, job, or childcare program. A healthcare provider can advise on vaccination and what a result means.

Ask about this test

Not sure this is the right test?

AI-generated. For information only, not medical advice. Call 911 for an emergency.

What does this test measure?

Your result shows whether rubella IgG antibodies were found, which can help you and a healthcare provider talk about immunity before a pregnancy or what a program asks for.

Rubella IgG
Rubella IgG is an antibody made after rubella vaccination or infection. When there is no recent infection, finding it is read as a sign of immunity. Rubella immunity matters especially before pregnancy. A negative or equivocal result is worth discussing with a provider.
Why it’s measured: Shows antibodies consistent with rubella immunity, which matters especially before pregnancy.

How it works

  1. Step 1

    Order online

    Check out here. A licensed clinician in your state reviews your order and sends it to the lab.

  2. Step 2

    Visit a lab

    Bring a photo ID to any of 2,000+ lab locations. No fasting needed, and nothing is due at the lab.

  3. Step 3

    Get your results

    Results post to your account, usually in 2 to 4 days, each number next to the lab’s reference range.

Find a lab near you

Choose from 2,000+ lab locations nationwide. Your order works at any of them.

What your results tell you

The lab compares your rubella IgG result with its cutoff and reports an interpretation, such as positive, equivocal, or negative.

  • Your number next to the lab’s reference range
  • Explained in plain language
  • A licensed clinician reviews your order and, if appropriate, orders the test.
  • A lab report you can download and share

A negative or equivocal result is worth discussing with a healthcare provider, who can advise on vaccination and next steps for you.

Clinical-grade testing, from the comfort of home.

From the lab to your report, every step of our process meets the gold standard in medical testing.

  • CLIA-certified labs

    Every lab we partner with is certified under the Clinical Laboratory Improvement Amendments, meeting both state and federal standards with regular independent inspections.

  • We protect your health data

    We protect your health data with encryption and do not sell it. Some results must be reported to public health authorities by law. See our Privacy Notice.

  • Rigorous quality assurance

    All partner labs run regular internal quality checks, participate in proficiency testing, and comply with federal and state lab regulations.

  • Clinician-reviewed reports

    Results are reviewed by an independent, licensed clinician.

Questions

Common questions.

Anything else, our care team answers by phone, text, or email.

The lab notes that rubella can infect a developing baby and cause birth defects, which is why immunity is a common question before pregnancy. A healthcare provider can explain your result and advise on vaccination.

If you are already pregnant, talk with your prenatal care provider about your result, since the rubella vaccine is not given during pregnancy.

A positive result means rubella IgG antibodies were found. The lab notes this is evidence of immunity, unless there is a current or recent infection. The test does not tell whether the antibodies came from vaccination or a past infection. If you need a result for a program, check what the program accepts first.

A negative result means the lab did not find rubella IgG antibodies above its cutoff, and an equivocal result is borderline. Either one is worth discussing with a healthcare provider, who can explain what it means for you and advise on vaccination.

No. This test measures IgG antibodies, which reflect immunity rather than a current illness. If you have a rash with fever or swollen glands, see a healthcare provider, especially if you are pregnant, rather than relying on this test.

Lab tests are informational and don’t diagnose conditions on their own. Available to adults 18 and older; test availability varies by lab location. A licensed clinician reviews your order and, if appropriate, orders the test. All testing is performed at CLIA-certified laboratories. Not for emergencies: if you think you may be having a medical emergency, call 911.