The test used to diagnose Dubin .lohnson syndrome is-: (A) Scrum transaminases, (B) Bromsulphalein test (BSP), (C) Hippuratc test, (D) Gamma glutamyl transferase level
Answer is B. 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