🔬 Autoimmune & Inflammation
Rheumatoid Factor (RF)
عامل الروماتويد (RF)
Sample Type
🧪 Blood
Results In
⏱ 24 Hours
Fasting
✅ Not Required
Parameters
📊 1
What is Rheumatoid Factor (RF)?
Measures rheumatoid factor antibodies associated with rheumatoid arthritis and other autoimmune conditions. One of the classic markers for RA diagnosis.
Why is this test important?
Positive RF supports RA diagnosis but is not specific — found in 5% of healthy adults. Higher titers correlate with more severe disease. Combined with anti-CCP for improved accuracy.
How to Prepare
No special preparation required.
Test Parameters & Normal Ranges
| Parameter | Normal Range | Unit |
|---|---|---|
| RF | 0 – 14 | IU/mL |
Frequently Asked Questions
Do I need to fast before my blood test?▼
It depends on the test. Tests like lipid profile and fasting blood sugar require 10-12 hours of fasting. Tests like CBC, vitamin D, and thyroid do not require fasting. Each test page on our website clearly states the fasting requirements.
Related Tests
Medical Disclaimer: The information on this page is for educational purposes only and should not be considered medical advice. Always consult your physician or qualified healthcare provider for diagnosis and treatment. Test results should be interpreted by a qualified medical professional.