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    What is Rheumatoid Factor (RA) Quantitative Test?

    The Rheumatoid Factor test is a blood test to detect rheumatoid factor antibodies in the bloodstream. These antibodies are typically produced by the immune system to defend against infections. However, in some cases, they can mistakenly attack healthy tissues, leading to autoimmune disorders. The RF antibodies usually target the synovium, a soft tissue lining inside joints, causing inflammation. Over time, this leads to joint damage and pain, which are characteristic symptoms of rheumatoid arthritis.

    Rheumatoid factor (RF) is one of the many antibodies associated with autoimmune disorders and is typically associated with rheumatoid arthritis (RA). About 80% of patients with RA test positive for RF antibodies. However, it is important to note that a positive RF test alone does not confirm RA. Elevated RF levels may also indicate other autoimmune diseases like Sjogren’s syndrome and chronic infections. Some individuals without any such conditions may also have elevated RF levels, and additional tests are often required for a conclusive diagnosis.

    The RA Factor test is an essential diagnostic tool for healthcare professionals, helping them identify autoimmune conditions early.

    Rheumatoid Factor (RA) Quantitative Test Parameters

    The RA factor test primarily measures one key parameter: the level of rheumatoid factor antibodies in the blood.

    RF is a special antibody that is not usually found in the blood unless there is an infection or some other type of immune response, in which these antibodies help the body fight off harmful pathogens. However, in persons with RA and other autoimmune diseases, the antibodies behave differently as they become more focused on attacking the body’s own tissues. The immune system becomes stuck in a loop, creating more of the antibodies, which worsens the condition. High levels of these antibodies can indicate RA or other autoimmune conditions and help doctors understand the severity of the disease.

    Rheumatoid Factor (RA) Quantitative Test Preparation

    Here are some important considerations to keep in mind when preparing for the RA Factor Test in Bangalore:

    • Prerequisites

    You do not have to fast before undergoing the RF test.

    • Best Time to Get Tested

    This test can be scheduled at any time of day.

    • Who Should Get This Test

    This test is usually recommended for individuals who experience symptoms like joint pain and stiffness and are suspected to have autoimmune disorders like rheumatoid arthritis or Sjögren’s syndrome.

    • Cautions Before Taking This Test

    No specific preparations are usually needed before the RA Factor Test. However, you should consult your doctor before undergoing the test to ensure it's appropriate for your situation.

    Why Take the Rheumatoid Factor (RA) Quantitative Test?

    The RA Factor test is useful in diagnosing and managing various health conditions, as follows:

    • Diagnosing Rheumatoid Arthritis (RA) : The RF test helps determine if someone has RA, a condition characterised by painful and swollen joints. The presence of RF antibodies in the blood can indicate RA. However, not everyone with high RF levels has RA, and some people with RA may not have high RF levels.

    • Assessing Disease Severity : The RF test provides insight into the severity of RA. High levels of RF often suggest a severe condition, with more joint damage and other complications.

    • Early Detection : The RF test can sometimes detect RA before symptoms appear. Early detection allows for quicker treatment, which may help reduce the severity of the disease.

    • Guiding Treatment : Although the RF test alone is not used to monitor treatment progress, it can assist doctors in choosing the most effective treatments. For example, individuals with high RF levels before treatment may respond poorly to TNF-alpha inhibitors.

    • Diagnosing Other Conditions : The RF test is also useful for identifying other autoimmune diseases, such as Sjögren’s Syndrome (which causes dry mouth and eyes), juvenile idiopathic arthritis (arthritis in children), lupus (which affects multiple organs), scleroderma (which hardens the skin and connective tissues), and mixed connective tissue disease (which shows symptoms of several autoimmune disorders). Additionally, it can help diagnose chronic infections like hepatitis C (a liver infection), tuberculosis (a bacterial infection affecting the lungs), and infective endocarditis (an infection of the heart’s lining).

    Overall, the Rheumatoid Factor test is an important tool for diagnosing RA, assessing its severity, and guiding treatment, and it can also aid in diagnosing other autoimmune diseases and chronic infections.

    Rheumatoid Factor (RA) Quantitative Test Results and Interpretation

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

    • Normal Result: If your RF test result is less than 14 IU/mL, it indicates that your RF levels are within a healthy range.

    • Positive Result: A positive RF result means your RF levels are higher than normal. This does not automatically mean you have rheumatoid arthritis (RA) or another condition but indicates the need for further investigation. High RF might be caused by:

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

    • Chronic Infections and Inflammatory Conditions: High RF levels can also occur in chronic infections and other systemic inflammatory conditions.

    • Age Factor: Healthy individuals over 65 years of age might also have slightly elevated RF levels.

    If you have high RF levels, your doctor may require further tests and a diagnosis will be made based on your test results, past medical history, and symptoms.

    FAQs on Rheumatoid Factor (RA) Quantitative Test in Bangalore

    The RF test price is ₹ 600. This price covers the fastest home sample collection within 60 minutes of test confirmation, with results available in 12 hours.

    Yes, Orange Health Labs provides home sample collection services for the RF test in Bangalore. Your sample can be collected at home within 60 minutes of booking, subject to slot availability.

    An RF test helps diagnose autoimmune conditions like rheumatoid arthritis and chronic infections by measuring The RF antibodies in the blood.

    No, fasting is not required for the RF test.

    Follow these steps to book a blood test or health checkup through our platform:

    • Find the Test : Search for the RA Factor test near me and visit Orange Health’s page from the list.

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

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

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

    • Receive Results : The reports of your RA Factor test at home will be delivered via email or WhatsApp within 12 hours and can also be accessed through our app.

    Normal levels of RF are typically less than 14 units per millilitre (U/mL).

    Once you book the RF test, Orange Health Labs will dispatch an eMedic to collect your sample within 60 minutes. The collection process usually takes just a few minutes. You can expect to receive your reports online within 12 hours.

    The frequency of the RF test depends on your doctor's assessment of your condition and risk. Follow your doctor’s guidance on how often to get the test done.

    The RF test measures only one parameter: the level of rheumatoid factor antibodies in the blood.

    Orange Health offers the fastest RA Factor test in Bangalore, delivered conveniently to your home without needing to visit the laboratory. Localities served for home sample collection include but are not limited to Adugodi, Banashankari, Bannerghatta, Basavanagudi, Bellandur, BTM Layout, Chamrajpet, Cottonpet, CV Raman Nagar, Domlur, Electronic City, Frazer Town, Giri Nagar, Hebbal, 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. 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/