Criterion | Definition/examples |
---|---|
1. Malar rash | Fixed erythema over the malar eminences, tending to spare the nasolabial folds |
2. Discoid rash | Erythematosus raised patches, may scar |
3. Photosensitivity | Skin rash as a result of unusual reaction to sunlight |
4. Oral ulcers | Usually painless |
5. Arthritis | Non-erosive: Jaccoud's arthropathy |
6. Serositis | a) Pleuritis – pleuritic pain, pleural rub, pleural effusion b) Pericarditis – ECG changes, rub, pericardial effusion |
7. Renal disorder | a) Proteinuria (> 3+ or 0.5 g/day) b) Cellular casts in urine |
8. Neurological disorder | a) Seizures b) Psychosis |
9. Haematological disorder | a) Haemolytic anaemia b) Leukopaenia c) Lymphopaenia d) Thrombocytopaenia |
10. Immunological disorder | a) Anti-DNA antibodies b) Anti-Sm antibodies c) Anti-phospholipid antibodies |
11. Anti-nuclear antibody | Exclude drug causes |