Rheumatoid Arthritis (RA) Factor

The RA Factor test identifies the presence of Rheumatoid Factor (RF) antibodies in your blood. These are proteins produced by your immune system that can mistakenly attack healthy joints and tissue. While often used to help diagnose Rheumatoid Arthritis, these antibodies can also be present in other autoimmune conditions or chronic infections.

What This Test Covers

• Rheumatoid Factor (RF) Antibodies: Measures the concentration of these specific autoantibodies in the bloodstream.

• Autoimmune Screening: Provides a key diagnostic marker for identifying inflammatory joint disease.

Why Order This Test?

• Joint Pain and Stiffness: If you experience persistent swelling, warmth, or stiffness in your joints, especially in the mornings.

• Symmetrical Symptoms: Used when pain occurs in the same joints on both sides of the body (e.g., both wrists or both knees).

• Differentiate Arthritis Types: Helps doctors distinguish between Rheumatoid Arthritis and non-inflammatory types like Osteoarthritis.

• Monitor Inflammation: Useful for those with a family history of autoimmune disorders who are beginning to show symptoms.

• Dry Eyes and Mouth: Sometimes ordered to investigate Sjogren’s syndrome, which can also cause a positive RF result.

Fast and Private Results

• Preparation: No fasting is required for this test.

• Turnaround Time: Results are typically available within 24 to 48 hours.

• Confidential: Your results are delivered securely to your private portal and are not shared with insurance providers.