I looked for the answer in the Sticked Info folder at the top already. There is lot of info on ANA testing but I don't see anything on the sub-tests, or at least about the question I have.
On my blood results form, I've always looked at the "reference range" as a "normal range"...so if my numbers are IN the reference range, they're normal or unremarkable.
Looking at the other tests (ds-DNA, Sm/RNP, Centromere, SS-A, SS-B, etc.) the reference range usually says 0-25 or 0-30 (there are no units stated on the report). So I thought that if my result was, say, 2.3, since that was still in the reference range, I was negative for that line item. I was doing some reading last night, and some of the lab test sites state that for these tests, anything over 1.0 is considered positive and that the test has a MAX result of 25. Which would mean that 0-25 isn't the reference range, it's the entire possible range.
If that's true, then wouldn't results of 1.3 or 2.5 or 4.2 be considered positive? I know that probably the higher the number, the more significant the test result is (and higher positives might indicate something different than low positives), but at what point is the test considered *positive* at all?