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    What is Rubella antibody IgG Test?

    The Rubella Antibody IgG test is a critical diagnostic tool used to assess immunity against the rubella virus (RuV). Rubella is a contagious viral infection caused by the RuV virus. Also known as German measles, rubella causes low-grade fever and rashes that usually start on the face and gradually affect the whole body. The condition can have a detrimental impact on newborns if they are infected by the virus. Rubella is particularly dangerous during pregnancy, as it can cause severe birth defects, known as congenital rubella syndrome (CRS), or lead to miscarriage. CRS can develop during the first trimester of the pregnancy. Other birth defects associated with CRS include hearing loss, vision problems including cataracts, and heart diseases.

    The Rubella IgG test detects the presence of IgG antibodies, which develop after exposure to the rubella virus or after vaccination. These antibodies remain in the bloodstream for life, providing long-term immunity. The rubella vaccine, part of the MMR (measles, mumps, rubella) vaccination, is highly effective at preventing the virus. Individuals who plan to conceive are encouraged to verify their immunity, as infection during pregnancy poses serious risks to the unborn child. Routine testing is recommended for the presence of rubella antibodies for individuals planning to conceive or for those who are unsure of their vaccination status.

    If you're in Bangalore and want to assess your immunity to rubella, scheduling a Rubella Antibody IgG test at home provides a convenient and reliable way to assess your immunity.

    Rubella antibody IgG Test Parameters

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

    Rubella IgG antibodies appear around the fourth day after rash onset and reach peak levels within two weeks. These antibodies persist for life, indicating past exposure or vaccination. For individuals suspected of recent rubella exposure, rubella-specific IgG antibodies play a crucial role in determining immunity and diagnosing rubella infection. In rubella infections after childbirth, a four-fold or greater increase in rubella-specific IgG is a sign of infection or re-infection. For pregnant individuals exposed to rubella, measuring rubella-specific IgG antibodies is essential to assess immunity.

    In cases of congenital rubella in a child, rubella-specific IgG can be used to confirm infection by observing the persistence or increase in IgG levels over the first six to 12 months of life. Detecting rubella-specific IgG antibodies can provide a reliable indicator of immunity and recent infection, making it an essential tool in achieving protection against rubella.

    Rubella antibody IgG Test Preparation

    To prepare for a Rubella IgG test at home, here are a few things you should know:

    • Prerequisites

    The Rubella IgG test does not require fasting.

    • Best Time to Get Tested

    The best time to undergo testing to detect IgG antibodies is four days after the appearance of the rash. It is ideal to consult a doctor for testing recommendations.

    • Who Should Get a Rubella IgG Test?

    This test is recommended for women who are pregnant or planning to become pregnant to assess their immunity to rubella. It is also useful for individuals who have symptoms of rubella, have had possible exposure to rubella, or want to confirm past vaccination or infection status.

    • Cautions Before Taking a Rubella IgG test

    It is important to inform your doctor if you were vaccinated against rubella in the past. It helps interpret the test results accurately.

    Why Take the Rubella antibody IgG Test?

    The Rubella IgG test serves several important purposes in assessing immunity and recent infection. Here are the key reasons why this test is performed:

    To Check Immunity in Pregnant or Prospective Mothers For women who are pregnant or planning to become pregnant, the Rubella IgG test is essential to determine if they are immune to rubella. Immunity protects both the mother and the developing foetus from complications like congenital rubella syndrome.

    To Confirm Recent or Active Rubella Infection If someone shows symptoms of a viral infection, this test helps identify whether rubella is the cause. The presence of IgM antibodies indicates a current or recent infection, while the presence of IgG antibodies suggests immunity from a past infection or vaccination.

    To Assess Immunity from Vaccination The test is also done to confirm whether a person has been vaccinated against rubella. Detection of rubella-specific IgG antibodies demonstrates immunity, whether from vaccination or a prior infection.

    To Screen for Congenital Rubella in Newborns In cases where a baby is born with birth defects, testing for rubella IgG antibodies can help determine whether congenital rubella is the cause. This is vital for early diagnosis and management.

    For Health Professionals in Contact with Pregnant Women Healthcare workers, especially those who work closely with pregnant women, may need this test to confirm immunity to rubella. If a health professional is not immune, vaccination may be recommended to reduce the risk of transmission to pregnant women and serious complications in the foetus.

    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: For vaccinated individuals, rubella virus can be found in respiratory secretions for up to 4 weeks after vaccination and antibodies persist for at least 16 years in most cases and for a lifetime in about 95% of vaccinated individuals. In congenital rubella, antibodies may disappear by age 3-4 years, so a negative test in older children does not necessarily exclude congenital rubella.

    FAQs on Rubella antibody IgG Test in Bangalore

    The cost of a Rubella IgG test in Bangalore is ₹900. This includes complimentary home sample collection, which will take place within 60 minutes after booking. You’ll receive the test results within 12 hours of the sample collection.

    Yes, home sample collection is available for the Rubella IgG test in Bangalore. Once you book the test, an eMedic will arrive at your location within 60 minutes to collect the sample.

    The Rubella IgG test is used to check immunity to the rubella virus, either from vaccination or past infection. It’s especially important for women who are pregnant or planning a pregnancy and for healthcare professionals who frequently interact with pregnant patients.

    Fasting is not required for the Rubella IgG test.

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

    • Look for the Test: Search for "Rubella IgG test in Bangalore" or "Rubella IgG test at home" and select Orange Health Labs from the options.

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

    • Collection of Blood Sample: A certified eMedic will visit your location to collect the sample.

    • Sample Analysis: Your sample will be analysed at an ICMR-approved, NABL-accredited laboratory.

    • Get Results: Results will be sent via email or WhatsApp within 12 hours, and can also be viewed on our app.

    A positive Rubella IgG result typically indicates immunity due to prior infection or vaccination. This may suggest that the person has been previously exposed to the virus and has developed immunity. Negative test result correlates with the absence of exposure to rubella.

    After booking, an eMedic will collect your sample within 60 minutes, and you can expect to receive the results within 12 hours.

    The frequency of the Rubella IgG test depends on your specific health situation. For women planning a pregnancy or exposed to rubella, your treating doctor will advise when it is necessary to take the test.

    The Rubella IgG test measures the level of IgG antibodies in your blood, which indicates immunity to the rubella virus either from a past infection or vaccination.

    Fasting is not necessary before taking the Rubella IgG blood test.

    Orange Health provides the Rubella IgG test with home sample collection across various localities in Bangalore. You can easily book a test from the comfort of your home in several regions, including but not limited to Adugodi, Banashankari, Bannerghatta, Basavanagudi, Bellandur, BTM Layout, Chamrajpet, Cottonpet, CV Raman Nagar, Frazer Town, Giri Nagar, Hebbal, Domlur, Electronic City, Hennur, Hosur, HSR Layout, Jakkur, Jalahalli, Jaya Nagar, Kadugodi, Kammanahalli, Kengeri, Koramangala, Mahalakshmi Layout, Madiwala, Magadi Road, Malleshwaram, Marathahalli, Mathikere, Mysore Road, Nagarbhavi, Nandhini Layout, Old Airport Road, Peenya, RT Nagar, Rajaji Nagar, Rajarajeshwari Nagar, Sadashivnagar, Sahakara Nagar, Sanjay Nagar, Sarjapur, Seshadripuram, Shanthi Nagar, Shivaji Nagar, Sri Nagar, Tyagarajnagar, Uttarahalli, Vasanth Nagar, Vidyaranyapura, Vijaya Nagar, Whitefield, Yelahanka, Yeshwantpur.

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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/