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    What is Rubella antibody IgG Test?

    The Rubella Antibody IgG test is an essential diagnostic tool to evaluate immunity against the rubella virus (RuV). Rubella, also known as German measles, is a contagious viral infection caused by the RuV virus. It typically results in a mild fever and a rash that begins on the face and spreads to other parts of the body. While rubella is generally mild, it can have serious consequences for newborns if the virus is contracted during pregnancy. The virus is particularly dangerous for expectant mothers, as it can lead to congenital rubella syndrome (CRS) or miscarriage. CRS, which typically develops in the first trimester, can cause birth defects like hearing loss, cataracts, and heart problems.

    The Rubella IgG test identifies the presence of IgG antibodies, which form after exposure to the virus or following vaccination. These antibodies remain in the bloodstream for life, providing lasting immunity. The rubella vaccine, included in the MMR (measles, mumps, rubella) shot, is highly effective in preventing the infection. Women planning to conceive are strongly advised to check their immunity, as rubella infection during pregnancy can have severe effects on the unborn baby. Routine rubella antibody testing is suggested for those intending to become pregnant or those uncertain about their vaccination history.

    If you're in Hyderabad and want to check your immunity against rubella, you can conveniently book a Rubella Antibody IgG test from home to ensure you're protected.

    Rubella antibody IgG Test Parameters

    The Rubella IgG test measures the concentration of IgG antibodies against the rubella virus.

    Rubella IgG antibodies typically appear by the fourth day after the rash begins and reach their maximum levels within two weeks. These antibodies remain in the body for life, signalling previous infection or vaccination. In cases where recent exposure to rubella is suspected, the presence of rubella-specific IgG antibodies is key to assessing immunity and diagnosing an active infection. A four-fold or greater rise in rubella-specific IgG antibodies after childbirth can indicate a recent infection or reinfection. For pregnant individuals exposed to rubella, checking rubella-specific IgG antibodies is critical for determining immunity.

    In congenital rubella cases in newborns, rubella-specific IgG antibodies help confirm the infection by tracking their persistence or rise within the first six to 12 months of life. Detecting rubella-specific IgG antibodies is a dependable indicator of immunity and recent infection, making the test vital for preventing rubella.

    Rubella antibody IgG Test Preparation

    To get ready for a Rubella IgG test at home, here are some key details to keep in mind:

    • Prerequisites

    Fasting is not necessary for the Rubella IgG test.

    • Best Time to Get Tested

    The best time to take the test to detect IgG antibodies is four days after the rash appears. It is recommended to consult your doctor for guidance on when to test.

    • Who Should Get a Rubella IgG Test?

    This test is advised for women who are currently pregnant or planning to conceive, to evaluate their immunity to rubella. It is also beneficial for individuals with rubella symptoms, those who may have been exposed to the virus, or those looking to confirm their vaccination or infection history.

    • Cautions Before Taking a Rubella IgG test

    Be sure to inform your doctor if you have been vaccinated against rubella previously, as this helps in accurately interpreting the test results.

    Why Take the Rubella antibody IgG Test?

    The Rubella IgG test plays a crucial role in determining immunity and detecting recent infections. Here is why it is commonly performed:

    To Assess Immunity in Pregnant Women or Those Planning Pregnancy: For women who are either pregnant or planning to conceive, this test is vital to check if they have immunity to rubella. Immunity is important to prevent complications like congenital rubella syndrome that could affect both the mother and the baby.

    To Identify a Recent or Current Rubella Infection: If someone exhibits symptoms of a viral illness, this test helps establish if rubella is the culprit. The detection of IgM antibodies signals a recent or active infection, while IgG antibodies indicate past infection or immunity from vaccination.

    To Verify Immunity Through Vaccination: This test also confirms if a person has been vaccinated against rubella. The presence of rubella-specific IgG antibodies indicates protection from vaccination or past infection.

    To Diagnose Congenital Rubella in Newborns: When a baby is born with congenital abnormalities, testing for rubella IgG antibodies helps determine if congenital rubella is the underlying cause, allowing for timely intervention.

    For Health Workers Exposed to Pregnant Women: Healthcare professionals, particularly those who work closely with expectant mothers, may need this test to verify immunity. If they are not immune, vaccination can be recommended to minimise the risk of rubella transmission and potential harm to pregnant women and their foetuses.

    Rubella antibody IgG Test Results and Interpretation

    Rubella-specific IgG antibodies help determine if a person has gained immunity through past infection or vaccination or if they are still at risk of infection. The table below outlines the test results:

    ParameterBiological ReferenceInterpretation
    Rubella Antibody IgG TestNegative: <10 IU/mL Equivocal: 10-14 IU/mL Positive: => 15This test is useful in diagnosing rubella infection and evaluating immunity. A positive result generally indicates protection through past infection or vaccination. To confirm immunity or detect an evolving infection, retesting after 3 weeks for any rise in IgG levels is recommended. A significant rise suggests active infection, but no increase doesn’t rule it out entirely. A negative result usually means no exposure to rubella.

    Please Note: In vaccinated individuals, the rubella virus may linger in respiratory secretions for up to 4 weeks, with antibodies typically lasting for 16 years or more, and potentially for life in around 95% of people. For congenital rubella, antibodies can disappear by age 3-4, so a negative test result in older children doesn’t definitively rule out congenital rubella.

    FAQs on Rubella antibody IgG Test in Hyderabad

    The Rubella IgG test in Hyderabad costs ₹900. This price includes free home sample collection, which will be done within 60 minutes after booking. You’ll get the test results within 74 hours of sample collection.

    Yes, home sample collection is available in Hyderabad for the Rubella IgG test. An eMedic will arrive at your location to collect the sample within 60 minutes after booking.

    The Rubella IgG test checks for immunity to rubella, either through past infection or vaccination. It’s especially vital for pregnant women or those planning to conceive and healthcare workers who work with pregnant women.

    No, fasting is not needed for this test.

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

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

    • Book the Test: Choose your desired time for sample collection.

    • Collection of Blood Sample: A certified eMedic will collect your blood sample from your location.

    • Sample Analysis: The sample is analysed in an ICMR-approved, NABL-accredited lab.

    • Get Results: Test results will be sent via email or WhatsApp within 74 hours or can be viewed on our app.

    A positive result means immunity from previous infection or vaccination. A negative result suggests no exposure to rubella.

    After booking, an eMedic will arrive to collect your sample within 60 minutes, and your results will be available within 74 hours after collection.

    The frequency depends on your specific situation. Women trying to conceive or exposed to rubella should consult their doctor about testing intervals.

    The Rubella IgG test measures IgG antibodies, which show immunity to rubella from prior infection or vaccination.

    Fasting is not needed for the Rubella IgG blood test.

    Orange Health offers home collection for Rubella IgG tests across Hyderabad, including localities like Banjara Hills, Jubilee Hills, Gachibowli, Madhapur, Hitech City, Kondapur, Begumpet, Somajiguda, Ameerpet, Panjagutta, Kukatpally, Miyapur, Manikonda, Secunderabad, Tarnaka, Abids, Koti, Mehdipatnam, Dilsukhnagar, Uppal, LB Nagar, Nallagandla, Nizampet, Attapur, Malkajgiri.

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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/