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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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The test used to diagnose Dubin .lohnson syndrome is-
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The correct answer is  A prolonged BSP dye excretion test is diagnostic of Dubin Johnson syndrome BSP is a dye which is removed from circulation by the same mechanism as bilirubin. Reference Harsh mohan page no.593