My pulmo ordered some blood work a few weeks ago and I just got the results in the mail. There was a category for an anti-neutrophil test and it had a few things under it, one being RA factor. Most everything was normal but the RA was 4 which apparantly is positive. When I researched what this was testing for all the information was about rheumatoid arthritis and I dont understand how this links to lung disease. It seems that this is a really low RA value but is this significant in any way to my health? Just curious what it meant<img src="i/expressions/face-icon-small-smile.gif" border="0"> Thanks for any input!