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Maumelle, AR
A 26-year-old female asked:

What is considered a positive result for the sm antibody for sle? my ana 1:320 but dna was negative. so many blood tests for sle diagnosis!!

1 doctor answer3 doctors weighed in
Dr. Leila Hashemi
Internal Medicine 23 years experience
SLE: hi, diagnosis of SLE is not base on blood test, positive DsDNA and ANA are just one out of 11 criteria for diagnosis of SLE, to diagnose SLE you need to have 4 out of 11 criteria. ANA is a non- specific test and false positive rate is high, especially in women and elderly.
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Last updated May 9, 2016


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