What is considered a high rheumatoid factor level?

What are the normal ranges for rheumatoid factor? The “normal” range (or negative test result) for rheumatoid factor is less than 14 IU/ml. Any result with values 14 IU/ml or above is considered abnormally high, elevated, or positive.

What is RA factor normal range?

Most medical centers consider the normal range of rheumatoid factor to be up to 10 IU/mL or 20 IU/mL, says rheumatologist Steffan Schulz, MD, assistant professor of clinical medicine with Penn Medicine in Philadelphia.

Is a rheumatoid factor of 25 high?

Multivariable adjusted hazard ratios rose from 3.6 (95% confidence interval, 1.7 – 7.3) for RF levels of 25 to 50 IU/mL to 6.0 (95% confidence interval, 3.4 – 10) for 50.1 to 100 IU/mL and to 26 (95% confidence interval, 15 – 46) for RF levels greater than 100 IU/mL in these initially healthy participants.

Does a positive rheumatoid factor mean I have rheumatoid arthritis?

A positive rheumatoid factor test result indicates that a high level of rheumatoid factor was detected in your blood. A higher level of rheumatoid factor in your blood is closely associated with autoimmune disease, particularly rheumatoid arthritis.

What is a positive RA factor?

What diseases can be mistaken for rheumatoid arthritis?

Diseases That Mimic Rheumatoid Arthritis

  • Osteoarthritis.
  • Psoriatic Arthritis.
  • Viral Arthritis.
  • Lyme Disease.
  • Fibromyalgia.
  • Lupus and Scleroderma.
  • Gout.
  • Reactive Arthritis.

What causes elevated rheumatoid factor?

– Subacute bacterial endocarditis – Tuberculosis – Syphilis – Salmonellosis – Brucellosis – Leprosy – Yaws

What is considered a high rheumatoid factor?

Rheumatoid arthritis. If you have rheumatoid arthritis (RA),you know how painful it can be.

  • RA and your diet. There is no cure for RA.
  • Load up on omega-3 fatty acids.
  • Add antioxidants.
  • Fill up on fiber.
  • Don’t forget your flavonoids.
  • Spice up meals.
  • The Mediterranean diet.

    • What does an elevated rheumatoid factor mean?

    Rheumatoid factor (RF) is an immune system protein that attacks healthy cells in the body. High RF levels in the blood can indicate an autoimmune condition, such as rheumatoid arthritis. An RF test is a blood test that can help diagnose rheumatoid arthritis.

    What is the standard range for rheumatoid factor?

    – Rheumatoid Factor. Rheumatoid factor (RF) was the first autoantibody to be discovered in people with RA. – Anticyclic Citrullinated Peptide. Another test which is ordered when rheumatoid arthritis is suspected is the anticyclic citrullinated peptide (anti-CCP). – Sedimentation Rate. – C-reactive Protein. – Complete Blood Count. – Complete Metabolic Panel. – Authors