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SLE Criteria Haematology Scoring — SCE Rheumatology MCQ

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HardSLE & Antiphospholipid SyndromeSLE Criteria Haematology ScoringSCE Rheumatology

A patient with SLE has leucopenia and thrombocytopenia but no autoimmune haemolysis. How are these counted in the 2019 EULAR/ACR haematological domain?

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Correct answer: C — Count thrombocytopenia as four points within the haematology domain

The best answer is “Count thrombocytopenia as four points within the haematology domain”. In the 2019 EULAR/ACR criteria, leucopenia scores 3 and thrombocytopenia scores 4, but items within one domain are not added; only the highest weighted item counts. Autoimmune haemolysis also scores 4 but is not required for the other abnormalities to contribute.

Reference: 2019 EULAR/ACR SLE classification criteria used in British Society for Rheumatology UK practice: https://ard.bmj.com/content/78/9/1151