Medicine Which of the following biochemical test is used to diagnose Dubin Johnson syndrome? A Serum transaminases B Bromsulphalein test (BSP) C Hippurate test D Gamma glutamyl transferase level 💡 Explanation Which of the following biochemical test is used to diagnose Dubin Johnson syndrome? ✓ Correct Answer: B. Bromsulphalein test (BSP)