Video lesson
Why it’s ordered
To support an RA diagnosis, especially early on.
Understanding results
A positive test makes RA much more likely and predicts a more erosive course. It can appear years before symptoms. About a third of people with RA test negative.
Good to know
Smoking is linked to anti-CCP positive RA.
At a glance
Type
Blood tests
Reviewed by Farhan Tahir, MD, FACR
Questions about your own care?
Book an in-person or telehealth consultation with Dr. Tahir.
For education only. Don’t start, stop or change a medicine without talking to your care team.