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    What is Rheumatoid Factor (RA) Quantitative Test?

    The Rheumatoid Factor (RF) test is a blood test used to detect rheumatoid factor antibodies in the bloodstream. Normally, these antibodies are produced by the immune system to fight infections. However, they can sometimes target healthy tissues by mistake, leading to autoimmune disorders.

    RF antibodies usually attack the synovium, the soft tissue lining inside the joints, causing inflammation. This can eventually result in joint damage and pain, which are typical symptoms of rheumatoid arthritis. Although RF is commonly associated with rheumatoid arthritis (RA), with around 80% of RA patients testing positive, a positive RF test alone does not confirm the diagnosis. Elevated RF levels can also indicate other autoimmune diseases such as Sjogren’s syndrome or chronic infections. Furthermore, some individuals without any autoimmune conditions may also have elevated RF levels, needing additional tests for a conclusive diagnosis.

    If you're in Delhi and at risk or in doubt about autoimmune diseases, an RF test at home is an important tool for early detection.

    Rheumatoid Factor (RA) Quantitative Test Parameters

    The RA factor test mainly evaluates only one parameter: the levels of RF antibodies in the bloodstream.

    These antibodies are not typically present unless there's an infection or immune response, where they help the body defend against harmful pathogens. In cases of RA and other autoimmune disorders, however, these antibodies begin to target the body's own tissues. This results in the immune system producing more antibodies, which aggravates the condition. Elevated levels of these antibodies can suggest RA or other autoimmune diseases and help doctors assess the disease's severity.

    Rheumatoid Factor (RA) Quantitative Test Preparation

    When getting ready for the RA Factor test in Delhi, keep these considerations in mind:

    • Prerequisites

    Fasting is not necessary before the RF test.

    • Best Time to Get Tested

    The RF test can be conducted at any time throughout the day.

    • Who Should Get the RF Test

    This test is generally recommended for those with symptoms such as joint pain and stiffness, and who may be at risk for autoimmune diseases like rheumatoid arthritis or Sjögren’s syndrome.

    • Cautions Before Taking the RF Test

    No particular preparations are usually required. However, consulting with your doctor beforehand is recommended to ensure the test is right for you.

    Why Take the Rheumatoid Factor (RA) Quantitative Test?

    The RA Factor test is essential for diagnosing and managing several health conditions, including:

    • Diagnosing RA : The RF test is used to identify RA, a disease characterised by joint pain and swelling. While RF antibodies in the blood can indicate RA, a high RF level is not definitive of the disease, and some RA patients might have low RF levels.

    • Early Detection : It can sometimes identify RA before symptoms are evident, allowing for early treatment that may help reduce the disease’s severity.

    • Assessing Disease Severity : This test provides insights into the severity of RA, with high RF levels often indicating a more severe disease, accompanied by greater joint damage and complications.

    • Guiding Treatment : The RF test alone is not used to track treatment progress but helps doctors select appropriate therapies. Patients with elevated RF levels before treatment may not respond as well to TNF-alpha inhibitors.

    • Diagnosing Other Conditions : Besides RA, the RF test is helpful in diagnosing other autoimmune disorders, such as Sjögren’s Syndrome (dry mouth and eyes), juvenile idiopathic arthritis (in children), lupus (multi-organ involvement), scleroderma (skin and connective tissue hardening), and mixed connective tissue disease (features of several autoimmune disorders). It can also be useful in diagnosing chronic infections like hepatitis C, tuberculosis, and infective endocarditis.

    Rheumatoid Factor (RA) Quantitative Test Results and Interpretation

    RF is measured in International Units per millilitre (IU/mL) of blood.

    • Normal Result : A result of less than 14 IU/mL is considered normal and falls within a healthy range.

    • Positive Result

      • Age Factor : Individuals over 65 years of age may naturally have slightly higher RF levels.

      • Autoimmune Diseases : High RF levels can be associated with autoimmune diseases such as RA.

      • Chronic Infections and Inflammatory Conditions : Elevated RF can also be linked to chronic infections and systemic inflammatory conditions.

    Should your RF levels be elevated, your doctor may require additional tests, and a diagnosis will be based on these results, along with your medical history and symptoms.

    FAQs on Rheumatoid Factor (RA) Quantitative Test in Delhi

    The RF test price is ₹ 560. This fee includes expedited home sample collection within 60 minutes of test confirmation, with results available in 12 hours.

    Yes, for the RF test in Delhi, Orange Health Labs does offer home sample collection. Your sample can be picked up at home within 60 minutes of your booking, subject to slot availability.

    The RA Factor test assists in identifying autoimmune diseases, including RA, and chronic infections by detecting RF antibodies in the blood.

    No, there is no requirement for fasting before the RA Factor test at home.

    Follow these steps to book a blood test or health checkup with us:

    • Find the Test : Search for RA Factor test in Delhi and navigate to Orange Health’s page from the results.

    • Review and Verify : Choose the RF test, review any prerequisites, provide your location, and complete the booking by selecting a convenient time for sample collection.

    • Sample Collection : A trained eMedic will come to your home to collect the sample at the arranged time.

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

    • Receive Results : The results of your RA Factor test will be delivered via email or WhatsApp within 12 hours and will also be available on our app.

    The standard reference range for RF levels is less than 14 U/mL.

    Orange Health Labs will arrange for an eMedic to collect your sample within 60 minutes after you book the RF test. Sample collection takes just minutes, and your test results will be available online within 12 hours.

    The RF test should be done as frequently as advised by your doctor, depending on your condition and risk assessment. Always follow your doctor’s guidance on the appropriate testing schedule.

    The RF test focuses on measuring just one parameter—the level of RF antibodies in your blood.

    With Orange Health, you can get the RA Factor test quickly and conveniently at home throughout Delhi, without needing to visit a physical lab. Our services cover various localities, including but not limited to Connaught Place, Chandni Chowk, Karol Bagh, Lajpat Nagar, South Extension, Greater Kailash, Hauz Khas, Saket, Vasant Kunj, Dwarka, Janakpuri, Rajouri Garden, Rohini, Pitampura, Mayur Vihar, Preet Vihar, Shahdara, Laxmi Nagar, Green Park, Safdarjung Enclave, New Friends Colony, Defence Colony, Kalkaji, Malviya Nagar, Nehru Place.

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    • We do not accept cash payments
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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/