Guest guest Posted December 9, 2006 Report Share Posted December 9, 2006 Tim, it's possible to have a negative RF at first, especially in early RA, but test positive later. Not an MD I'll tell you where to go! Mayo Clinic in Rochester http://www.mayoclinic.org/rochester s Hopkins Medicine http://www.hopkinsmedicine.org Re: [ ] Re: course of RA > Hi > > I was tested for RF and it was negative. I assume that is a good thing, > have you heard of anybody going from RF negative to positive? Also is it > common to have occasional throbbing pain in the knees and feet? > Thanks.........Tim Quote Link to comment Share on other sites More sharing options...
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