R.A FACTOR

R.A FACTOR

R.A. Factor (Rheumatoid Factor) is a blood test commonly used to help evaluate autoimmune conditions such as rheumatoid arthritis. It may be recommended for people experiencing joint pain, swelling, stiffness, or prolonged morning discomfort. The test detects rheumatoid factor antibodies in the blood. A positive result does not confirm rheumatoid arthritis on its own, so doctors interpret it along with symptoms and other tests.