A 42-year-old member asked:
whats a normal level for sm antibody?
1 doctor answer • 4 doctors weighed in
Rheumatology 55 years experience
Depends on whose sm: Different labs have different ranges for their positive test. They usually set the range for detection at a certain level. Below that level they have many people without lupus that would have a + test. Above that level is what they call a + test. But not all labs are created equal - so each has there own level determined by their scientific investigations.
5.9k viewsReviewed >2 years ago
A 33-year-old member asked:
What is a normal level for sm antibody?
1 doctor answer • 2 doctors weighed in
Pathology 49 years experience
5.7k viewsReviewed >2 years ago
Last updated Sep 16, 2012
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