Rheumatoid Factor Blood Test (RF)

Rheumatoid factor is used to help diagnose Rheumatoid Arthritis. It is eventually present in significant concentrations in about 80% of patients with RA but also present in other conditions and in a small percentage of healthy people.

Rheumatoid factor is used to help diagnose Rheumatoid Arthritis. It is eventually present in significant concentrations in about 80% of patients with RA but also present in other conditions and in a small percentage of healthy people.