Is 77 a high rheumatoid factor level?

Answer 1

High levels RF (generally above 20 IU/mL, 1:40 or over the 95th percentile there is some variation among labs) are indicative of rheumatoid arthritis (present in 80%) and Sjögren's syndrome (present in almost 100%). The higher the levels of RF the higher the possibility of a more destructive articular disease.[citation needed]

(source Wikipedia)

Answer 2

Results are usually reported in one of two ways:

• Less than 40-60 u/mL
• Less than 1:80 (1 to 80) titer

A low number (normal result) usually means you do not have rheumatoid Arthritis or Sjogren syndrome. However, some people who do have these conditions still have a "normal" or low rheumatoid factor (RF).

Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.

Answer 3

High levels of rheumatoid factor (generally above 20 IU/mL, are indicative of rheumatoid arthritis. As well as other rheumatoid diseases.

Answer 4

not particularly