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    What is Rubella antibody IgG Test?

    The Rubella Antibody IgG test is an important tool for determining immunity against the rubella virus (RuV). Rubella, often called German measles, is a viral infection caused by the RuV virus that spreads easily from person to person. It commonly causes mild symptoms such as a low fever and a rash that begins on the face and spreads across the body. Although rubella is usually mild, it can be extremely dangerous for pregnant women, as it can lead to congenital rubella syndrome (CRS) or miscarriage. CRS, which can develop during the first trimester, is associated with severe birth defects, including hearing loss, cataracts, and heart issues.

    The Rubella IgG test detects IgG antibodies that develop after exposure to rubella or following vaccination. These antibodies remain in the body for life, ensuring long-term protection. The rubella vaccine, administered as part of the MMR (measles, mumps, rubella) vaccine, is very effective in preventing the disease. It is especially important for women planning to conceive to verify their immunity, as rubella during pregnancy can have devastating effects on the baby. Routine rubella antibody testing is recommended for those who plan to conceive or are unsure about their vaccination status.

    If you're in Delhi and want to assess your immunity to rubella, booking a Rubella Antibody IgG test from home is an easy and reliable way to ensure you’re protected.

    Rubella antibody IgG Test Parameters

    The Rubella IgG test checks the levels of IgG antibodies against the rubella virus.

    These rubella IgG antibodies generally appear around the fourth day after a rash starts and reach peak concentrations within two weeks. These antibodies last a lifetime, indicating prior exposure or vaccination. When recent exposure to rubella is suspected, rubella-specific IgG antibodies are crucial for evaluating immunity and diagnosing the infection. A four-fold or more increase in rubella-specific IgG antibodies following childbirth can signal an active or re-infection. For pregnant individuals who have been exposed to rubella, testing rubella-specific IgG antibodies is essential to determine immunity.

    In congenital rubella cases, rubella-specific IgG antibodies can confirm infection by tracking the persistence or rise of these antibodies in the first six to 12 months of a child's life. Identifying rubella-specific IgG antibodies serves as a trustworthy marker for both immunity and recent infection, making the test a critical tool in ensuring protection from rubella.

    Rubella antibody IgG Test Preparation

    Before taking a Rubella IgG test at home, here are a few points to note:

    • Prerequisites

    There is no need to fast before taking the Rubella IgG test.

    • Best Time to Get Tested

    The most appropriate time to take the test for IgG antibodies is around four days after a rash first appears. You should consult a doctor for advice on when to get tested.

    • Who Should Get a Rubella IgG Test?

    Women who are either pregnant or trying to conceive should consider this test to check for rubella immunity. It is also recommended for individuals with symptoms of rubella, those who may have been exposed to the virus, or people looking to verify past vaccination or infection.

    • Cautions Before Taking a Rubella IgG test

    It’s important to inform your healthcare provider if you have previously received the rubella vaccine, as this can help ensure the test results are interpreted correctly.

    Why Take the Rubella antibody IgG Test?

    The Rubella IgG test is essential in various contexts for identifying immunity and detecting infections. Here are the primary reasons for its use:

    To Ensure Immunity in Pregnant or Future Mothers: This test is critical for pregnant women or those planning a pregnancy, as it checks for immunity to rubella. Having immunity helps protect both the mother and the unborn child from risks like congenital rubella syndrome.

    To Confirm a Recent or Ongoing Rubella Infection: If someone shows signs of a viral illness, the Rubella IgG test can identify whether rubella is the cause. The presence of IgM antibodies indicates an active or recent infection, while IgG antibodies suggest immunity due to previous infection or vaccination.

    To Check Immunity After Vaccination: This test is used to confirm whether someone has been successfully immunized against rubella. Finding rubella-specific IgG antibodies signals immunity from either vaccination or a past infection.

    To Diagnose Congenital Rubella in Newborns: When a baby is born with developmental issues, this test can be used to check if congenital rubella is the reason. It plays a crucial role in diagnosing and managing the condition early on.

    For Healthcare Providers Who Work with Pregnant Women: Healthcare professionals in close contact with pregnant women may need this test to ensure they are immune to rubella. If not, vaccination can be recommended to prevent the spread of rubella and protect their patients.

    Rubella antibody IgG Test Results and Interpretation

    Rubella-specific IgG antibodies provide insight into whether an individual has immunity through prior infection or vaccination, or if they may be susceptible to infection. The table below will help you understand the test results:

    ParameterBiological ReferenceInterpretation
    Rubella Antibody IgG TestNegative: <10 IU/mL Equivocal: 10-14 IU/mL Positive: => 15The Rubella test helps diagnose rubella infection and assesses immune status against the virus. A positive Rubella IgG result typically indicates immunity due to prior infection or vaccination. A positive anti-rubella IgG result should be confirmed by testing again after 3 weeks for an increase or stabilisation of the IgG levels. A significant rise in IgG indicates an evolving/active rubella infection, but no rise in IgG does not rule out the infection. A negative test result correlates with the absence of exposure to rubella.

    Please Note: In vaccinated individuals, the rubella virus may be present in respiratory secretions for up to 4 weeks after vaccination, and antibodies can last for 16 years or even a lifetime in about 95% of cases. In congenital rubella, antibodies might fade by ages 3-4, so a negative result in older children does not definitively exclude congenital rubella.

    FAQs on Rubella antibody IgG Test in Delhi

    The cost of a Rubella IgG test in Delhi is ₹900. This includes complimentary home sample collection, which will take place within 60 minutes after booking. You’ll receive the test results within 83 hours of the sample collection.

    Yes, home sample collection is offered for the Rubella IgG test in Delhi. Once you book, an eMedic will visit your location within 60 minutes to collect the sample.

    The Rubella IgG test checks for immunity to the rubella virus, either from vaccination or previous infection. It’s particularly important for pregnant women or those planning a pregnancy, as well as for healthcare professionals who regularly interact with pregnant patients.

    No, fasting is not required for the Rubella IgG test.

    To book a Rubella IgG test with Orange Health Labs in Delhi, follow these steps:

    Search for the Test: Look for "Rubella IgG test in Delhi" or "Rubella IgG test at home" and choose Orange Health Labs from the available options.

    Book the Test: Review the test details and schedule a convenient time for sample collection.

    Sample Collection: A certified eMedic will come to your home to collect the blood sample.

    Sample Processing: The sample will be analysed in an ICMR-approved, NABL-accredited laboratory.

    Receive Results: Results will be sent to you via email or WhatsApp within 83 hours and can also be accessed through our app.

    A positive Rubella IgG result usually indicates immunity from a previous infection or vaccination. This result shows that the person has likely been exposed to the virus before and developed immunity. A negative result points to no prior exposure to rubella.

    After booking, an eMedic will collect your sample within 60 minutes, and the results will be available within 83 hours.

    The Rubella IgG test should be taken as needed, depending on your health situation. Women planning to become pregnant or those recently exposed to rubella should consult their doctor for advice on test frequency.

    The Rubella IgG test measures the level of IgG antibodies, which reflects immunity to the rubella virus due to past infection or vaccination.

    Fasting is not required for the Rubella IgG test.

    Orange Health provides Rubella IgG tests with home sample collection throughout Delhi, including localities such as Connaught Place, Chandni Chowk, Karol Bagh, Lajpat Nagar, South Extension, Greater Kailash, Hauz Khas, Saket, Vasant Kunj, Dwarka, Rohini, Pitampura, Janakpuri, Rajouri Garden, Mayur Vihar, Preet Vihar, Shahdara, Laxmi Nagar, Green Park, Safdarjung Enclave, Defence Colony, New Friends Colony, Kalkaji, Malviya Nagar, Nehru Place.

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    References

    1. Serology Testing for Rubella [Internet]. Rubella (German Measles, Three-Day Measles). CDC. 2024  Available from:  https://www.cdc.gov/rubella/php/laboratories/serology-testing.html
    2. Rubella (German Measles): Symptoms, Treatment & Prevention [Internet]. Cleveland Clinic. 2023  Available from:  https://my.clevelandclinic.org/health/diseases/17798-rubella
    3. Rubella Test [Internet]. Children’s Hospital at Montefiore Einstein (CHAM). 2024  Available from:  https://www.cham.org/HealthwiseArticle.aspx?id=hw5576#hw5579
    4. Malliany Camejo Leonor, Mendez MD. Rubella [Internet]. Nih.gov. StatPearls Publishing; 2023  Available from:  https://www.ncbi.nlm.nih.gov/books/NBK559040/
    5. Rubella IgG antibodies [Internet]. Gloucestershire Hospitals NHS Foundation Trust. ; 2024  Available from:  https://www.gloshospitals.nhs.uk/our-services/services-we-offer/pathology/tests-and-investigations/rubella-igg-antibodies/