This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pediatrics
The maximum urinary concentration capacity in full-term neonates is 
Select and explain. 
A. 350-450 mOsm/litre, B. 700-800 mOsm/litre, C. 900-1000 mOsm/litre, D. >1000 mOsm/litre
B: 700-800 mOsm/litre
Answer: B: 700-800 mOsm/litre 
Explanation: A full-term infant can concentrate his urine to a maximum of 700-800 mOsm/kgAn older child can concentrate 1200-1400 mOsm/kgA newborn can dilute his urine to a minimum of 50 mOsm/kg much like an older child.(Refer: Nelson's Textbook of Pediatrics, SAE, 1st edition)