Experiencing joint pain, stiffness, or swelling? This test measures rheumatoid factor (RF), an antibody that can indicate autoimmune conditions such as rheumatoid arthritis. While rheumatoid factor is commonly elevated in rheumatoid arthritis, it can also be present in other inflammatory or autoimmune disorders.




Rheumatoid Factor Blood Test
- Results estimated in 3 working days
- Convenient testing options
- Bespoke doctor’s report
- Free delivery
Includes rheumatoid factor (RF), an antibody that may indicate rheumatoid arthritis or other autoimmune conditions.
How do you want to take your sample?
Please choose one option below-
Book a venous draw at a clinic Venous+£35Visit one of our national clinic partners for a nurse to take your venous blood sample from a vein in your arm. We’ll email you instructions on how to book after we’ve processed your order.
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Book a venous draw at home with a nurse Venous+£59Book a home nurse appointment for a nurse to take your venous blood sample from a vein in your arm.
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Self-arrange a professional sample collection VenousFreeMake an appointment at a phlebotomy clinic to have your venous blood sample taken. You will be responsible for arranging your appointment and any additional fees.
18+ Only. T&Cs apply.
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Go beyond the numbers
Get ready to elevate your health understanding with a personalised doctor's report. Go beyond results and tap into expert insights tailored just for you.
- Actionable advice
- Expert support
- Tailored recommendations

How it works
You have the flexibility to choose what works best for you. Enjoy the comfort of having a friendly nurse visit your home for a quick blood draw, opt for a convenient visit to one of our nationwide partner clinics, or self-arrange a draw at a location that suits you.
Take control of your health with Medichecks – order your blood test today!

Track, improve, and monitor your health over time.
MyMedichecks is your personal online dashboard where you can view your results, access clear and simple explanations about individual health markers, monitor changes in your health, and securely store information about your medical history, lifestyle and vital statistics.
Supported by a team of specialist and qualified doctors
Dr Natasha Fernando
Medical DirectorDr Tina Ghela
Digital Clinician LeadDr Susanna Hayter
Digital Clinician
What's in the test?
Autoimmunity
Rheumatoid Factor Turbidimetry
Learn more
How to prepare for your test
Test limitations
This test helps detect rheumatoid factor but does not diagnose rheumatoid arthritis or other autoimmune diseases on its own. Some people without rheumatoid arthritis may have elevated RF, while some with rheumatoid arthritis may test negative. Further tests, such as anti-CCP antibodies or inflammatory markers, may be needed for a complete assessment.
Reviews
FAQs
What's an immunology blood test?
With an immunology blood test, you can investigate and monitor various conditions alongside support from your healthcare provider, including allergies, autoimmune responses, and immunodeficiencies.
When will I get my results?
Your Rheumatoid Factor Blood Test results will be available within three days of our labs receiving your sample.
What is a Rheumatoid Factor Blood Test?
Our Rheumatoid Factor Blood Test is an immunology blood test to measure rheumatoid factor in your blood, which can attack healthy tissue.