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A member asked:
Is an ana 1:640 vs 1:320 or 1:80 just considered "more positive" or more anas present and that's all since it doesn't correlate with disease activity?
A doctor has provided 1 answer
Titer of antibody: Value of 1:640 means twice as much antinuclear antibody as in a sample with a titer of 1:320.
Answered 4/14/2013
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