Lupus cannot be diagnosed from a blood test, although some out-of-date rheumies seem to think it can.
It is best to find a rheumy that is associated with your local chapter of www.lupus.org
, those are the Drs who are most up-to-date and qualified in Lupus diagnosis and treatment.
On that same website you will find a list of 11 symptoms - Lupus is diagnosed when you have 4 or more of these symptoms and not other illness can be found.
But check out the symptoms of psoriatic arthritis & how it's diagnosed -- seems that I vague recall it may also have a facial rash?? No sure on that.
Lynnwood, Lupus & Sjogren's Moderator, Dx: 2002DIAGNOSING LUPUS & LUPUS RESOURCES
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