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Rheumatoid Factor (RF) Test
Also Known As : RA Factor Test, Rheumatoid Arthritis Factor Test, RF Test
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Brief Details
What Is a Rheumatoid Factor (RF) Test?
A rheumatoid factor (RF) test is a simple blood test that measures specific proteins called rheumatoid factors in your bloodstream. These proteins are autoantibodies that your immune system produces when it mistakenly attacks your body's own healthy tissues.
The test uses a blood sample collected from a vein in your arm. It helps doctors detect and diagnose autoimmune conditions, particularly rheumatoid arthritis, as well as other inflammatory diseases, like Sjögren's syndrome.
Frequently asked questions
Find quick answers to the most common questions about health tests, bookings, and reports.
There is no specific best time for the RA factor test. You can have your blood drawn at any time of day, as the test doesn't require special timing or fasting preparation.
No, overnight fasting is not required for the rheumatoid factor test. You can eat and drink normally before your blood sample is collected without affecting the test results.
While dehydration doesn't directly cause false results, severe dehydration can concentrate blood components. It's recommended to stay adequately hydrated before any blood test for optimal sample quality.
No special dietary preparation is needed. Continue taking your prescribed medications, and inform your doctor about all medicines, vitamins, and supplements you're taking for a complete health assessment.
A trained phlebotomist cleans your arm, ties a tourniquet, inserts a sterile needle into your vein, collects blood in a tube, removes the needle, and applies a bandage.
The risks are minimal and include slight pain, minor bruising at the needle site, or occasional dizziness. Serious complications, like infections, are extremely rare with proper sterile techniques.
Normal RA factor levels are considered non-reactive when below 14 IU/mL. Values at or above this threshold are generally considered positive and may indicate autoimmune activity.
The test is commonly called the RF Test, RA Factor Test, or Rheumatoid Arthritis Factor Test. All these names refer to the same blood test measuring rheumatoid factors.
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Metropolis Healthcare is a leading diagnostic service provider in India. We are a team of dedicated professionals committed to ensuring you and your family receive the most accurate and timely healthcare solutions. We believe in making health care accessible, affordable and evidence-based. Our expert panel are equipped with the latest technology and manned by a certified team of over 4000+ technicians.
In diagnostic services, we have more than three decades of experience servicing diverse stakeholders health advantage packages for men, women and seniors, genetic fitness & corporation in over 650+ tests like Oncology, Neurology, Gynaecology, Haematology, and many more. Our diagnostic services are located in leading doctors and clinics and serve over 15+ cities in India.
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View your reports and upcoming health checkups at one place.
Please enter the OTP sent to your registered mobile number to verify your identity.
Not sure which tests to take? Share your prescription with us and our team will call you.
Popular Searches
Frequently Booked Tests
Frequently Booked Packages
Please share your details, our health advisor will call you or you can call us at 0804-8911-400.
Please share your details, our health advisor will call you or you can call us at 0804-8911-400.