Diagnosis of Systemic Lupus Erythematosus
Systemic Lupus Erythematosus (SLE or Lupus) is a difficult disease to diagnose. Because the signs/symptoms can occur in a wide variety of organ systems, it is difficult to pinpoint the diagnosis of SLE initially. The diagnosis of SLE is based on clinical evaluation and laboratory evidence. The American College of Rheumatology (ACR) has developed specific criteria to aid in the diagnosis of SLE. The SLICC (Systemic Lupus International Collaborating Clinics) group in collaboration with the ACR recommendations have stated a person is diagnosed with SLE if they have biopsy proven lupus nephritis with ANA or anti-dsDNA antibodies positive laboratories; or if at least 4 of the 11 ACR criteria have been met including at least 1 clinical and 1 immunologic. The American College of Rheumatology (ACR) has developed a mnemonic to help in identifying the diagnostic criteria. The mnemonic is SOAP BRAIN MD. If the patient meets at least 4 of those ACR criteria, then a clinical diagnosis of SLE may be made. S stands for serositis. O stands for oral ulcers. A stands for arthritis. P stands for photosensitivity. B stands for blood disorders. R stands for renal involvement. A stands for ANA (antinuclear antibodies).