Yes you can have RA with an Rf of 20. When a doctor sees the symptoms of RA they automatically check for RF because it is a good indicator that that is the problem when taking the symptoms into...
rheumatoidresembling rheumatism. arthritis [ahr-thri´tis] (pl. arthri´tides) inflammation of a joint. adj., adj arthrit´ic. The term is often used by the public to indicate any disease involving...
Rheumatoid factor (RF or RhF) is an antibody that attacs an organism's own tissue. omos often found in About 80% of people with rheumatoid arthritis have detectable rheumatoid factor. Those who do...