The most appropriate response by the nurse is option B) "Don't worry; it's normal for newborns to lose some weight in the first few days."
Step-by-step explanation:
It is normal for newborns to lose some weight in the first few days after birth. This weight loss is mainly due to the loss of excess fluid. The baby's initial weight loss is usually regained within 10 to 14 days after birth.
During the first few days, newborns usually lose around 5% to 7% of their birth weight. In this case, the baby lost 8 oz (226.8 g), which is within the normal range. This weight loss is not a cause for alarm.
The nurse's response reassures the client that this weight loss is normal and there is no need to worry. It is important to provide accurate information to alleviate the client's concerns and prevent unnecessary anxiety.