HI everyone,
I am waiting to be accepted onto a drug trial and they are repeatedly testing my ANA levels. Normal depends on the lab doing the tests, but I have been told that 1:80 can still be considered normal. The titers jump in those multiples. 1:20, 1:40, 1:80: 1:160, 1:320, 1:640, 1:1280 and so on. I am told by my rheumy that a positive is considered a clear indicator of disease activity (a flare). However, it doesn't mean you have to be positive to have a flare. Not everyone who hs lupus is positive. In my case, the drug trial people are just trying to get a control group.
Hope this helps.