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    What is Rheumatoid Factor (RA) Quantitative Test?

    The Rheumatoid Factor (RF) test is a diagnostic blood test that measures the presence of rheumatoid factor antibodies in the blood. These antibodies are normally produced by the immune system to combat infections. However, they can sometimes mistakenly attack the body's own tissues, resulting in autoimmune disorders.

    RF antibodies typically target the synovium, a soft tissue lining within the joints, leading to inflammation. Over time, this can cause joint damage and pain, characteristic of rheumatoid arthritis. Although RF is commonly linked to rheumatoid arthritis (RA), with about 80% of RA patients testing positive for these antibodies, a positive RF test alone does not confirm the condition. Increased RF levels can also be seen in other autoimmune disorders like Sjogren’s syndrome or chronic infections. Additionally, some individuals without any such conditions may have elevated RF levels, requiring further testing for a definitive diagnosis.

    Therefore, if you're in Mumbai and concerned about autoimmune diseases, getting an RF test at home is essential for early identification.

    Rheumatoid Factor (RA) Quantitative Test Parameters

    The main parameter of the RA factor test is to measure the concentration of RF antibodies in the blood.

    RF antibodies are normally absent from the blood unless there's an infection or immune reaction, where they aid in fighting off harmful pathogens. In people with RA and other autoimmune diseases, however, these antibodies shift their focus to attacking the body’s own tissues. This causes the immune system to continuously produce more antibodies, worsening the condition. High antibody levels can indicate RA or other autoimmune conditions and provide insights into the severity of the disease.

    Rheumatoid Factor (RA) Quantitative Test Preparation

    For those preparing for the RA Factor test in Mumbai, consider these important factors:

    • Prerequisites

    There is no need to fast before undergoing the RF test.

    • Best Time to Get Tested

    You can schedule the RF test at any time during the day.

    • Who Should Get the RF Test

    It is commonly advised for individuals with symptoms like joint pain and stiffness who may have autoimmune conditions such as rheumatoid arthritis or Sjögren’s syndrome.

    • Cautions Before Taking The RF Test

    Usually, no specific preparations are required. It is wise to consult your doctor to ensure that the test is appropriate for your condition.

    Why Take the Rheumatoid Factor (RA) Quantitative Test?

    The RA Factor test is valuable for diagnosing and managing various health conditions, including:

    • Early Detection : The RF test may detect RA before symptoms appear, allowing for early treatment that could potentially lessen the disease's impact.

    • Diagnosing RA : The test helps determine if a person has RA, which is characterised by painful, swollen joints. RF antibodies in the blood can indicate RA, but not everyone with high RF levels has RA, and some RA patients may have normal RF levels.

    • Assessing Disease Severity : It provides insight into RA severity, with high RF levels often correlating with more severe disease, increased joint damage, and complications.

    • Guiding Treatment : Although it is not used to monitor treatment efficacy directly, the RF test helps doctors choose effective treatments. For example, patients with high RF levels might not respond as well to TNF-alpha inhibitors.

    • Diagnosing Other Conditions : The RF test is also useful for diagnosing other autoimmune diseases, including juvenile idiopathic arthritis (in children), lupus (affecting various organs), scleroderma (hardening of skin and tissues), Sjögren’s Syndrome (causing dryness in mouth and eyes), and mixed connective tissue disease (exhibiting features of several autoimmune conditions). It can also aid in diagnosing chronic infections like hepatitis C, tuberculosis, and infective endocarditis.

    Rheumatoid Factor (RA) Quantitative Test Results and Interpretation

    The RF test results are expressed in International Units per millilitre (IU/mL) of blood.

    • Normal Result : RF levels under 14 IU/mL are considered normal and indicate a healthy range.

    • Positive Result

      • Autoimmune Diseases : High RF levels are commonly seen in autoimmune disorders like RA.

      • Chronic Infections and Inflammatory Conditions : Increased RF levels can also be observed in chronic infections and systemic inflammatory conditions.

      • Age Factor : Slightly elevated RF levels can be normal for individuals older than 65 years.

    If your RF levels are high, further tests might be necessary, and a diagnosis will be based on your results, past medical history, and symptoms.

    FAQs on Rheumatoid Factor (RA) Quantitative Test in Mumbai

    The RF test price is ₹ 660. This cost is inclusive of the fastest home sample collection within 60 minutes of test confirmation, with reports available in 12 hours.

    Yes, Orange Health Labs provides a home sample collection service for the RF test in Mumbai. Sample collection can be arranged at home within 60 minutes of booking, based on available slots.

    An RF test helps in diagnosing conditions such as RA and chronic infections by assessing the presence of RF antibodies in the bloodstream.

    No, fasting is not necessary for the RA Factor test at home.

    Below mentioned steps will help you book any blood test or health checkup on our platform:

    • Find the Test : Search for the RA Factor test in Mumbai and visit the Orange Health page listed.

    • Review and Verify : Select the RF test, review any necessary prerequisites, enter your location, and complete your booking by choosing a preferred time for sample collection.

    • Sample Collection : An eMedic will visit your home to collect the sample at the scheduled time.

    • Lab Processing : The collected blood sample will be sent to our ICMR-approved and NABL-accredited labs for analysis.

    • Receive Results : Your test results will be delivered via email or WhatsApp within 12 hours and can also be accessed through our app.

    RF levels considered normal are typically under 14 U/mL.

    After booking the RF test, Orange Health Labs will send an eMedic to collect your sample within 60 minutes. The sample collection itself takes just a few minutes. Reports are typically available online within 12 hours.

    How often you need the RF test depends on your doctor’s evaluation of your health and risk level. Adhere to your doctor’s recommendations regarding test frequency.

    This test evaluates only one parameter, which is the concentration of RF antibodies in the bloodstream.

    Orange Health provides the fastest RA Factor test right at your home across Mumbai, removing the need for a physical lab visit. We provide our services to numerous localities, including but not limited to Colaba, Mulund, Bhandup, Nariman Point, Marine Drive, Malabar Hill, Vashi, Belapur, Churchgate, Worli, Dadar, Parel, Byculla, Bandra, Andheri, Juhu, Ghatkopar, Powai, Chembur, Santacruz, Khar, Versova, Lokhandwala, Goregaon, Borivali, Kandivali, Kurla.

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    References

    1. MD ME. RF Test: What is the Normal Range for a Rheumatoid Factor Test? [Internet].  Available from:  https://www.rheumatoidarthritis.org/ra/diagnosis/rheumatoid-factor/
    2. What Is a Normal Rheumatoid Factor Level? [Internet]. Cleveland Clinic.  Available from:  https://my.clevelandclinic.org/health/diagnostics/rheumatoid-factor
    3. Tiwari V, Jandu JS, Bergman MJ. Rheumatoid Factor [Internet]. PubMed. Treasure Island (FL): StatPearls Publishing; 2020.  Available from:  https://www.ncbi.nlm.nih.gov/books/NBK532898/