Are there tests for psoriatic arthritis?

[D Foster]

My regular doctor sent me to a rheumatologist to see if my arthritis was either psoriatic or rheumatoid.  Now I may have misunderstood as they did a blood test and it wasn't until my next visit that it was confirmed that I had neither psoriatic or rheumatoid arthritis and that mine was orthopedic.  The rhemmy did immediately say that he didn't think it was psoriatic, however he didn't fully commit to that until after the test results.  But it could be the test was mostly to rule out rheumatoid and I just misunderstood and it's been over a year now since I had that done.  I just seem to recall that the test was to see if I had one or the other.   Perhaps they use the blood test as one way to help them diagnose (as Fred said in his post) and that just wasn't explained very well to me.

Good luck Jim!

I am fairly sure that many years ago now I was tested to see what arthritis I had and they did it with a blood test like Kat though it was in the dim and distant past.