Yes It is likely that you have a positive RA factor if you have RA However it is not necessary to have a positive RA factor if you have RA the relationship between RA factor and ra is not understood and some people with RA never have an RA factor. These situations are known as sero-negative Rheumatoid Arthritis.
A rheumatoid factor over 23 units and a titer over 1:80 indicates rheumatoid arthritis, However this may also occur in other conditions.False positive results can occur when the blood is high in fats.A negative test result for rheumatoid factor does not exclude the diagnosis of rheumatoid arthritis.
rheumatoid factor is a particular type of antibody that is found in about 80% of people have Rheumatoid arthritis as well as with other inflammatory illnesses. A negative RF simply means there is no RF in the blood.
For one thing Seronegative spondyloarthropathy shows a negative rheumatoid factor.
Yes, as a matter of fact you can have RA with no rheumatoid factor at all.
No. 98% of people with lupus have a positive ANA with a speckled pattern. People with rheumatoid arthritis will have a positive rheumatoid factor and possible a positive ANA but with a different pattern.
Seropositive Rheumatoid arthritis is RA in a person that has rheumatoid factor in the blood. As opposed to seronegative RA where there is no RF.Rheumatoid arthritis is an autoimmune disease that exhibits itself in a certain way when it is suspected that one has RA ones blood is tested for Rheumatoid factor (a particular antibody) if it is found to be elevated then one is said to have seropositive RA.
You can have it with or without any factor.
Yes You can have Rheumatoid arthritis with no RF at all. In that case it is referred to as seronegative RA,
You may have RA even though you don't have rheumatoid factor. In this case it is referred to as seronegative rheumatoid arthritis.
Yes
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 not are said to be "seronegative".Rheumatoid factor can also be a (antibody that precipitates on cooling of a blood sample); it can be either type 2 (monoclonal IgM to polyclonal IgG) or 3 (polyclonal IgM to polyclonal IgG)
People that have rheumatoid arthritis often also have a high RF However not always. There are also many people with a high rheumatoid factor that never develop rheumatoid arthritis, so unless the person is showing the symptoms of RA it should have no effect.