This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
Indications for exchange transfusion are all except? 
Select and explain. 
A. Unconjugated bilirubin > 18 mg/100 ml, B. Cord hemoglobin < 10 mg/100 ml, C. Cord bilirubin < 5 mg/100 ml, D. Bilirubin protein ratio > 3.5
C: Cord bilirubin < 5 mg/100 ml
Answer: C: Cord bilirubin < 5 mg/100 ml 
Explanation: Ans. is 'c' i.e., Cord bilirubin < 5 mg/100 ml Cord bilirubin 5 or more is an indication.