How is lupus diagnosed? There is no, single “lupus test.” Physicians gather information, including the patient’s medical history, lab tests, and current symptoms, and use a list of 11 criteria to help diagnose or rule out lupus. To be diagnosed with lupus, a person needs to satisfy at least 4 of the 11 criteria. Only 4 criteria involve blood tests; the other 7 relate to symptoms, such as malar rash or kidney disorders (See the complete list of criteria at www.lupus.org).
What Causes Lupus?»