FRCPath Haem Part 1 MCQ-General Haematology 61

A 28yr old pt present with dark urine following gastroenteritis. No PMHx. Hb 88, MCV 98, LDH high. DAT neg. Bite cells in film. Test to confirm disease?

• Osmotic fragility test
• Flow cytometry for CD55/CD59
• Enzyme assay after recovery
• EMA binding test

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