How is Lupus diagnosed?
The Systemic Lupus International Collaborating Clinic Index 20123 (SLICC’12) is the most up to date and sensitive list of diagnosis criteria. The SLICC is an international body dedicated to research on Lupus.
You must present with four of the criteria listed on the signs and symptoms page including one symptom from the clinical list and one positive blood screen from the immunologic list. It is important to note that all of these criteria do not need to be present at the same time.
Alternatively the most definitive diagnosis is a kidney biopsy with ANA or anti dsDNA antibodies present or a skin biopsy if you have some skin involvement.