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Rubella Virus IgG Antibody Confirmatory Test (Serum/Plasma)

Published: August 9, 2026Updated: August 16, 2026

This test checks for rubella (German measles) antibodies in your blood to confirm past infection or immunity.

Quick summary

["Determines if you’ve been exposed to rubella or developed immunity."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
85711-0
Short code
Mother Rubella sero confirm dur illness
Synonyms
Mother Rubella sero confirm dur illness
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

Why This Test Matters

Rubella is a contagious virus that can cause serious complications in pregnant women, including miscarriage or birth defects. This test helps doctors confirm whether you have immunity or need vaccination to protect you and your baby.

What to Expect Before the Test

No special preparation is needed. You’ll have a small needle inserted into your arm to draw blood. It usually takes a few minutes. If you’re pregnant or planning pregnancy, inform your doctor before testing.

What the Test Results Mean

Positive results indicate you have rubella antibodies, meaning you’ve likely had the virus or been vaccinated. Negative results mean you may not have immunity and could require vaccination or further testing.

Common Causes of Abnormal Results

False negatives can occur if tested too soon after exposure. False positives are rare but may happen with certain conditions or medications. Your doctor will discuss results in detail with you.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Role in Healthcare

Short name

Rubella Antibody Confirmation

Frequently asked questions

Is this test covered by insurance?
Most insurance plans cover rubella antibody tests for pregnant women or those with suspected exposure, but check with your provider for specifics. If uninsured, ask your healthcare team about affordable options.
How long will I wait for results?
Results are typically available within 1–3 business days, depending on lab processing times. Your doctor will contact you once ready.
Can I get vaccinated instead of testing?
Yes! If you test negative for rubella immunity, your doctor may recommend vaccination (MMR shot) to prevent future exposure. Vaccination is safe and highly effective.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy