Also known as: RF, RF blood test.
What the Rheumatoid Factor test measures
The level of rheumatoid factor antibodies.
Typical reference range
Usually below ~14 IU/mL (varies by lab). Reference ranges differ between laboratories and depend on age, sex, and other factors, so always compare your result with the range printed on your own report. This page is for orientation only and is not medical advice.
Why a Rheumatoid Factor is ordered
- Investigating joint pain and swelling
- Helping diagnose rheumatoid arthritis
What to track
- Result and date
- Joint symptoms at the time
- Alongside anti-CCP if measured
How Hamdosh helps with Rheumatoid Factor results
Lab values only tell a story when you can see them over time. Upload each Rheumatoid Factor report to Hamdosh and it's read with per-field confidence OCR, attached to the right family member, and plotted on one timeline — alongside the medications and visits that surround it. Everything is encrypted at rest, and search is one tap away: "show my Rheumatoid Factor history."