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
Newborn loses how much weight in the first week? 
Select and explain. 
A. 1-2%, B. 5-10%, C. 10-15%, D. 15-20%
B: 5-10%
Answer: B: 5-10% 
Explanation: It is expected that newborns will lose some weight in the first 5-7 days of life. A 7-10% loss is considered normal for breastfed babies.A 5% weight loss is considered normal for a formula-fed newborn. Most neonates should regain this lost weight by days 10-14 of life.(Refer: Nelson's Textbook of Pediatrics, SAE, 1st edition, pg no. 789 -791)