A member asked:

In lupus, can you rheumatoid factor be negative? or is it positive?

A doctor has provided 1 answer

Dr. Ed Friedlander answered

Usually negative: Anti-nuclear antibodies are almost always positive if it's really lupus. These tests are fraught with technical pitfalls, and are never more than adjuncts to a clinical diagnosis.

Answered 6/26/2014

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A member asked:

In lupus, can you rheumatoid factor be negative? or is it positive?

A doctor has provided 1 answer

Dr. Ed Friedlander answered

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