A member asked:

Is a value of <10 cu on anti-sm and anti-rnp mean these autoantibodies do not exist at all (i.e. 0)? or that there's only a very low concentration? yt

A doctor has provided 1 answer

Immunology tests: Normal / abnormal ranges of anti-sm and anti-RNP depend on the laboratory used and technique (like ELISA). Analyze results according to guidelines of the laboratory running the sample; they report normal, borderline, &amp; positive ranges. Example: one lab running an ELISA will report a negative anti-RNP result defined as

Answered 9/2/2015

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Low concentration pill" what does the mean?

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