This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Liver and Biliary System, Subject name: Pediatrics
Causes of conjugated hyperbilirubinemia is - 
Select and explain. 
A. Rotor syndrome, B. Breast milk jaundice, C. Crigler najjar syndrome, D. Gilbert syndrome
A: Rotor syndrome
Answer: A: Rotor syndrome 
Explanation: Ans. is 'a' i.e., Rotor syndrome Breast milk jaundice -o Decrease bilirubin uptake across hepathocyte membrane.o Entero-hepatic recirculation,o Leads to indirect hyperbilirubinemia.Rotor syndrome & Dubin-Johnson syndrome - (Nelson 17th/e Chapter 354)o Defect in hepatocyte secretion of conjugated bilirubin,o Leads to direct hyperbilirubinemia.