One member on another health group is suggesting that I could have auto immune disease and a doctor back in 2014 checked this # and on a range of 0.0-13.9, my # was 9.9 (RA Latex Turbid).

I'm going to dig deeper into this as it was NOT discussed again and this MD is on a medical leave from her work, so I'm seeing another MD but can't get there for a while for some new labs.

Comments Please. I have a couple friends who deal with RA so I'm going to be probing them with ???, anyone hear know the factor numbers and RA etc,

One friend sent this link explaining RF factor and it's informative and says a person can show up with low RF # and not have RA. I've had two fingers with nodules for decades but other 8 fingers are just fine. So I have a "mild" RA it appears.

Rheumatoid Factor Blood Test Levels and RF Normal Range

Some background about Rheumatoid Factor (RF):

RF is an antibody, usually of the IgM class, which usually binds to the Fc region of IgG. Because of that it is called an autoantibody (it recognises a normal body protein, IgG in this case). In the case of RA the resultant immune complexes contribute to joint damage.

Elevated RF levels can occur in people with other auto-immune diseases (eg, SLE and Sjögren's Syndrome). Elevated RF levels can also occur in many other diseases which do not have an auto-immune component; leprosy, syphilis, malaria, leukaemia, hepatitis and cirrhosis among many others.

High levels of RF are present in 80% of people with RA and 70% of people with Sjögren's Syndrome.

The clinical significance (if any) of elevated RF levels in the other diseases is not clear